Process to make aromatic enol ethers and olefin isomers of aromatic enol ethers

Abstract

Disclosed is a method for making aromatic enol ethers that have utility as film-hardening additives for coating formulations. The aromatic enol ethers have particular utility as film-hardening additives for water-based coating formulations. The aromatic enol ethers provide improvements in hardness and hardness related properties such as block resistance without contributing to the volatile organic content of the composition.

Claims

1. A method of making aromatic enol ethers comprising: a) contacting a glycol ether with a di-epoxide in the presence of a base to form a first reaction product; b) combining said first reaction product with an aromatic hydrocarbon and an acid to form a second reaction product having an aqueous phase and a non-aqueous phase; c) separating said second reaction product aqueous phase from said second reaction product non-aqueous second phase; d) drying said second reaction product non-aqueous phase to recover a dicarbinol; e) dehydrating said dicarbinol with an acid catalyst to form a mixture of an aromatic enol ether and water; and f) separating said aromatic ether from said water.

2. The method of claim 1, step a) wherein said glycol ether is ethylene glycol monomethyl ether, ethylenene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monoisopropyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monopropyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol monomethyl ether, tripropylene glycol monoethyl ether, tripropylene glycol monopropyl ether, tripropylene glycol monobutyl ether or mixtures thereof.

3. The method of claim 1, step a) wherein said di-epoxide is 1,3-bis(2-methyloxiran-2-yl)benzene, 1,4-bis(2-methyloxiran-2-yl)benzene, 1,3-di(oxiran-2-yl)benzene, 1,4-di(oxiran-2-yl)benzene 4,4-bis(2-methyloxiran-2-yl)-1,1-biphenyl, 2,6-bis(2-methyloxiran-2-yl)naphthalene or mixtures thereof.

4. The method of claim 1, step a) wherein said base is sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium metal, sodium methoxide, potassium tert-butoxide, anion exchange resins and mixtures and combinations thereof.

5. The method of claim 1, step b) wherein said aromatic hydrocarbon is toluene, chlorobenzene, para-xylene, meta-xylene, ortho-xylene or mixtures thereof.

6. The method of claim 1, step b) wherein said acid is a cationic exchange resin, sulfuric acid, phosphoric acid, hydrochloric acid, formic acid, acetic acid and combinations and mixtures thereof.

7. The method of claim 1 wherein in said separation step c) is a liquid-liquid extraction.

8. The method of claim 1 wherein in said drying step d) is filtration through a desiccant bed, azeotropic distillation with heptane, toluene, or xylene or combinations thereof.

9. The method of claim 1, step e) wherein said acid catalysts is para-toluene sulfonic acid, methane sulfonic acid, camphor sulfonic acid, a cationic exchange resin, sulfuric acid, phosphoric acid, hydrochloric acid, formic acid, chloroacetic acid, dichloroacetic acid, trichloroacetic acid, trifluoroacetic acid, sodium hydrogen sulfate, potassium hydrogen sulfate and mixtures and combinations thereof.

Description

DETAILED DESCRIPTION

Definitions

(1) In this specification and in the claims that follow, reference will be made to a number of terms, which shall be defined to have the following meanings.

(2) Alkyl means an aliphatic hydrocarbon. The alkyl can specify the number of carbon atoms, for example (C.sub.1-5)alkyl. Unless otherwise specified, the alkyl group can be unbranched or branched. In some embodiments, the alkyl group is branched. In some embodiments, the alkyl group is unbranched. Non-limiting examples of alkanes include methane, ethane, propane, isopropyl (i.e., branched propyl), butyl, and the like.

(3) Alkenyl means an aliphatic hydrocarbon with one or more unsaturated carbon-carbon bonds. The alkenyl can specify the number of carbon atoms, for example (C.sub.2-12)alkenyl. Unless otherwise specified, the alkyl group can be unbranched or branched. In some embodiments, the alkyl group is branched. In some embodiments, the alkyl group is unbranched. Non-limiting examples of alkanes include ethynyl, propenyl, butenyl, hexa-3,5-dienyl, and the like.

(4) Alcohol means a chemical containing one or more hydroxyl groups.

(5) Aldehyde means a chemical containing one or more C(O)H groups.

(6) Cycloalkyl means a cyclic hydrocarbon compound. The cycloalkyl can specify the number of carbon atoms in ring system, for example (C.sub.3-8)cycloalkyl. Non-limiting examples of cycloalkyl include cyclopropyl, cyclobutyl, cyclohexyl, and cyclooctyl.

(7) Aryl means a ring system made up carbon atoms that has at least one ring that is aromatic. The carbon units making up the aryl ring may be specified, for example 5- to 9-membered aryl. Non-limiting examples of aryl include phenyl, naphthyl, 2,3-dihydro-1H-indene, and 1,2,3,4-tetrahydronaphthalene.

(8) Values may be expressed as about or approximately a given number. Similarly, ranges may be expressed herein as from about one particular value and/or to about or another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent about, it will be understood that the particular value forms another aspect.

(9) As used herein, the terms a, an, and the mean one or more.

(10) As used herein, the term and/or, when used in a list of two or more items, means that any one of the listed items can be employed by itself or any combination of two or more of the listed items can be employed. For example, if a composition is described as containing components A, B, and/or C, the composition can contain A alone; B alone; C alone; A and B in combination; A and C in combination, B and C in combination; or A, B, and C in combination.

(11) As used herein, the terms comprising, comprises, and comprise are open-ended transition terms used to transition from a subject recited before the term to one or more elements recited after the term, where the element or elements listed after the transition term are not necessarily the only elements that make up the subject.

(12) As used herein, the terms having, has, and have have the same open-ended meaning as comprising, comprises, and comprise provided above.

(13) As used herein, the terms including, includes, and include have the same open-ended meaning as comprising, comprises, and comprise provided above.

(14) Chosen from as used herein can be used with or or and. For example, Y is chosen from A, B, and C means Y can be individually A, B, or C. Alternatively, Y is chosen from A, B, or C means Y can be individually A, B, or C; or a combination of A and B, A and C, B and C, or A, B, and C.

(15) As used herein numerical ranges are intended to include the beginning number in the range and the ending number in the range and all numerical values and ranges in between the beginning and ending range numbers. For example, the range 40 C. to 60 C. includes the ranges 40 C. to 59 C., 41 C. to 60 C., 41.5 C. to 55.75 C. and 40, 41, 42, 43, etc. through 60 C.

(16) Presented herein is a method for making novel enol ethers which can be used in applications such as (but not limited to) diluents, wetting agents, coalescing aids and paint additives.

(17) The method comprises: 1) contacting a glycol ether with a di-epoxide in the presence of a base to form a first reaction product; 2) combining said first reaction product with an aromatic hydrocarbon and an organic acid to form a second reaction product having an aqueous phase and a non-aqueous phase; 3) Separating said second reaction product aqueous phase from said second reaction product non-aqueous second phase; 4) drying said second reaction product non-aqueous phase to recover a dicarbinol; 5) dehydrating said dicarbinol with an acid catalyst to form a mixture of an aromatic enol ether and water; and 6) separating said aromatic ether from said water.

(18) Suitable glycol ethers for this method include ethylene glycol monomethyl ether, ethylenene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monoisopropyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monopropyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol monomethyl ether, tripropylene glycol monoethyl ether, tripropylene glycol monopropyl ether, tripropylene glycol monobutyl ether, or mixtures thereof.

(19) Preferred glycol ethers for this method are ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monoisopropyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, tripropylene glycol monomethyl ether or mixtures thereof.

(20) Di-epoxides suitable for use in this method include 1,3-bis(2-methyloxiran-2-yl)benzene, 1,4-bis(2-methyloxiran-2-yl)benzene, 1,3-di(oxiran-2-yl)benzene, 1,4-di(oxiran-2-yl)benzene 4,4-bis(2-methyloxiran-2-yl)-1,1-biphenyl, and 2,6-bis(2-methyloxiran-2-yl)naphthalene or mixtures thereof.

(21) Preferred di-epoxides for use in this method are 1,3-bis(2-methyloxiran-2-yl)benzene, 1,4-bis(2-methyloxiran-2-yl)benzene or mixtures thereof.

(22) Suitable basic materials for use in step 1 include sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium metal, sodium methoxide, potassium tert-butoxide, anion exchange resins and combinations or mixtures thereof.

(23) Preferred basic materials for use in step 1 include sodium hydroxide, potassium hydroxide, and sodium methoxide or mixtures thereof.

(24) Aromatic hydrocarbons suitable for use in this method include toluene, chlorobenzene, para-xylene, meta-xylene, and ortho-xylene or mixtures thereof.

(25) Preferred aromatic hydrocarbons are toluene and chlorobenzene or mixtures thereof.

(26) Suitable acids for use in this method include cationic exchange resins (e.g. Amberlyst 15, Nafion NR50), sulfuric acid, phosphoric acid, hydrochloric acid, formic acid, and acetic acid or mixtures thereof.

(27) Preferred acids are sulfuric acid, phosphoric acid, hydrochloric acid, and acetic acid or mixtures thereof.

(28) Suitable separation techniques for step 3 include liquid-liquid extraction.

(29) Suitable drying techniques for step 4 include filtration through a desiccant bed, azeotropic distillation with heptane, toluene, or xylene to remove trace water and combinations thereof.

(30) Suitable acid catalysts for Step 6 include para-toluene sulfonic acid, methane sulfonic acid, camphor sulfonic acid, cationic exchange resins (e.g. Amberlyst 15, Nafion NR50), sulfuric acid, phosphoric acid, hydrochloric acid, formic acid, chloroacetic acid, dichloroacetic acid, trichloroacetic acid, trifluoroacetic acid, sodium hydrogen sulfate, potassium hydrogen sulfate and mixtures thereof.

(31) Suitable separation techniques for step 7 include distillation or extraction or a combination thereof.

(32) Step a) of the process wherein a glycol ether is contacted with a di-epoxide in the presence of a base can be conducted at a temperature of 40 C. to 80 C., or 40 C. to 75 C., or 40 C. to 70 C., or 40 C. to 65 C., or 40 C. to 60 C., or 45 C. to 55 C., or any temperature within the aforementioned ranges. It is preferable to maintain the temperature below about 80 C. to avoid discoloration of the first reaction product.

(33) The dicarbinol material that is dehydrated to the aromatic enol ethers in this method are represented by Formula I:

(34) ##STR00012## wherein: A is (C.sub.8-20)alkylaryl; R.sup.1a and R.sup.1b are independently

(35) ##STR00013## each R.sup.4 is independently hydrogen, (C.sub.1-12)alkyl, (C.sub.2-12)alkenyl or C(O)R.sup.5; each R.sup.5 is (C.sub.1-12)alkyl unsubstituted or substituted by R.sup.6, (C.sub.2-12)alkenyl unsubstituted or substituted by R.sup.6, (C.sub.3-8)cycloalkyl, or 5- to 9-membered aryl; R.sup.6 is (C.sub.1-4)alkoxy, or oxo; and each n is independently an integer from 1 to 15.

(36) In some embodiments of this invention, the aromatic enol ethers produced by this method are represented by Formulas II, III, and IV.

(37) In some embodiments Formula II is

(38) ##STR00014## wherein: A is (C.sub.8-20)alkylaryl; R.sup.1a and R.sup.1b are independently

(39) ##STR00015## each R.sup.4 is independently hydrogen, (C.sub.1-12)alkyl, (C.sub.2-12)alkenyl or C(O)R.sup.5; each R.sup.5 is (C.sub.1-12)alkyl unsubstituted or substituted by R.sup.6, (C.sub.2-12)alkenyl unsubstituted or substituted by R.sup.6, (C.sub.3-8)cycloalkyl, or 5- to 9-membered aryl; R.sup.6 is (C.sub.1-4)alkoxy, or oxo; and each n is independently an integer from 1 to 15.

(40) In some embodiments Formula III is

(41) ##STR00016## wherein: A is (C.sub.8-20)alkylaryl; R.sup.1a and R.sup.1b are independently

(42) ##STR00017## each R.sup.4 is independently hydrogen, (C.sub.1-12)alkyl, (C.sub.2-12)alkenyl or C(O)R.sup.5; each R.sup.5 is (C.sub.1-12)alkyl unsubstituted or substituted by R.sup.6, (C.sub.2-12)alkenyl unsubstituted or substituted by R.sup.6, (C.sub.3-8)cycloalkyl, or 5- to 9-membered aryl; R.sup.6 is (C.sub.1-4)alkoxy, or oxo; and each n is independently an integer from 1 to 15.

(43) In some embodiments Formula IV is

(44) ##STR00018## wherein: A is (C.sub.8-20)alkylaryl; R.sup.1a and R.sup.1b are independently

(45) ##STR00019## each R.sup.4 is independently hydrogen, (C.sub.1-12)alkyl, (C.sub.2-12)alkenyl or C(O)R.sup.5; each R.sup.5 is (C.sub.1-12)alkyl unsubstituted or substituted by R.sup.6, (C.sub.2-12)alkenyl unsubstituted or substituted by R.sup.6, (C.sub.3-8)cycloalkyl, or 5- to 9-membered aryl; R.sup.6 is (C.sub.1-4)alkoxy, or oxo; and each n is independently an integer from 1 to 15.

(46) In some embodiments, A in Formulas II, III and IV, is 1,2-, 1,3-, or 1,4-disubstituted phenyl. In some embodiments, each n is an integer from 1 to 3.

(47) In some embodiments of Formulas II, III and IV, each R.sup.4 is hydrogen. In some embodiments, each R.sup.4 is (C.sub.1-12)alkyl. In some embodiments, each R.sup.4 is independently ethyl. In some embodiments, each R.sup.4 is (C2-12)alkenyl. In some embodiments, each R.sup.4 is C(O)R.sup.5.

(48) In some embodiments of Formulas II, III and IV, each R.sup.5 is (C.sub.1-12)alkyl unsubstituted or substituted by R.sup.6. In some embodiments, each R.sup.5 is (C.sub.1-12)alkenyl unsubstituted or substituted by R.sup.6. In some embodiments, each R.sup.5 is (C.sub.3-8)cycloalkyl. In some embodiments, each R.sup.5 is 5- to 9-membered aryl.

(49) In some embodiments of Formulas II, III and IV, each n is an integer from 1 to 2. In some embodiments, each n is an integer from 1 to 3. In some embodiments, each n is an integer from 1 to 4. In some embodiments, each n is an integer from 1 to 5. In some embodiments, n is an integer from 1 to 6. In some embodiments, n is an integer from 1 to 7. In some embodiments, n is an integer from 1 to 8. In some embodiments, n is an integer from 1 to 9. In some embodiments, n is an integer from 1 to 10. In some embodiments, n is an integer from 1 to 11. In some embodiments, n is an integer from 1 to 12. In some embodiments, n is an integer from 1 to 13. In some embodiments, n is an integer from 1 to 14. In some embodiments, n is an integer from 1 to 15.

(50) In some embodiments, the compounds of Formulas II, III and IV have a volatile organic content of less than 50 wt % according to ASTM D6886. In some embodiments, the volatile organic content is less than 30 wt %. In some embodiments, the volatile organic content is less than 10 wt %. In some embodiments, the volatile organic content is less than 5 wt %. In some embodiments, the volatile organic content is less than 3 wt %. In some embodiments, the volatile organic content is less than 2 wt %. In some embodiments, the volatile organic content is less than 1 wt %. In some embodiments, the volatile organic content is less than 0.8 wt %.

(51) Compositions

(52) The compounds disclosed in the present application exhibit a low volatile organic content (less than 50 wt %, but as low as 0.7 wt % according to ASTM D6886) and are reactive film-hardening compounds. Reactive film-hardening compounds react with components in coating compositions to form crosslinks in the films providing improved film properties. When we say that the compounds of this invention are reactive film-hardening additives, we mean when added to a coating composition, that a harder film is obtained upon curing the composition than is obtained in the absence of the invention additives, or that the coating composition exhibits a higher gel fraction than in the absence of the invention additive, or that both coating composition hardness and increased gel fraction properties are improved by the addition of the invention reactive film-hardening additives.

(53) Not wishing to be bound by any theory, the increase in hardness observed and described herein for these reactive film-hardening additives appears to result from a chemical reaction, so that the additives described herein may be described as reactive additives. These materials facilitate the individual latex particles coming together to form a continuous film at a given temperature by reducing the minimum film-forming temperature (MFFT) of the latex polymer. As used herein, the compounds of the invention (i.e., Formulas II, III and IV) act as reactive film-hardening additives by reducing the minimum film-forming temperatures of the coating compositions in which they are used.

(54) In some embodiments, the composition comprises the compounds represented by Formulas II, III and IV.

(55) In some embodiments, the compounds of Formula II, III and IV are enol ethers represented by Formulas 5-20.

(56) ##STR00020## ##STR00021## ##STR00022## ##STR00023##

(57) The enol ethers depicted by Formulas 5-19 are representative of the enol ethers claimed herein. Isomers of the enol ethers depicted by Formulas 5-19 are expected to be produced during synthesis of the enol ethers depicted by Formulas 5-19. All isomers of the enol ethers depicted by Formulas 5-19 and are within the scope of the claims set forth herein. Representative isomers are described in the examples herein below.

(58) The compounds depicted by Formulas II, III and IV of the present invention include those having a weight percent volatile content of less than 50%, as measured according to ASTM Method D6886. This test may be conducted generally by heating the sample in a forced air oven at 110 C. for 60 minutes. The weight loss after the test is deemed to result from a loss of volatiles originally present in the sample; the percent volatile present in the original sample may then be calculated. Although the cited test can be conducted on coating compositions containing other components such as latex polymers, the values cited herein may be obtained from a sample of the additive itself. The weight percent volatile of a film-hardening aid may be used herein as a yardstick to measure the amount of VOC the additive would contribute to the VOC in a particular end use such as a component of a coating composition.

EXAMPLES

(59) This invention can be further illustrated by the following examples thereof, although it will be understood that these examples are included merely for purposes of illustration and are not intended to limit the scope of the invention unless otherwise specifically indicated.

Abbreviations

(60) mL is milliliter; wt % is weight percent; eq is equivalent(s); hrs. or h is hour(s); mm is millimeter; m is meter; GC is gas chromatography; C. is degree Celsius; min is minute; t.sub.R is retention time; VOC is volatile organic compound; MeP is methyl palmitate; w/v is weight/volume; L is microliter. RFHA is reactive film-hardening additive.

(61) General Procedure for Epoxide Opening

(62) To a 4-necked round-bottom flask fitted with thermocouple, nitrogen inlet, and overhead stirrer was added glycol ether (5 equiv.). Then the di-epoxide was added all at once. The mixture was heated to an internal temperature of 50 C. (note: the 1,4-di-epoxide is a solid that requires some additional time for dissolution; the 1,3-di-epoxide is a liquid at room temperature). The KOH (90%, flakes, 2 equiv.) was added portion-wise such that the internal temperature did not exceed 70 C., over the course of 1 to 1.5 hrs. Once the addition of base was complete, the reaction was monitored by .sup.1H NMR (aliquot was dissolved in DMSO-d.sub.6). After the di-epoxide was completely consumed, the mixture was cooled to room temperature. The mixture was then poured into ice water. Toluene was added to the mixture and then acetic acid (2.05 equiv. was added). The mixture was transferred to a separatory funnel. After layer separation, the aqueous layer was back-extracted with ethyl acetate. The organics were combined and dried with MgSO.sub.4, while stirring with activated carbon. The mixture was filtered, and the volatiles were removed using a rotary evaporator. Kugelrohr distillation was used to remove excess glycol ether, if needed.

Example 1: Preparation of 2,2-(1,4-phenylene)bis(1-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)propan-2-ol) [22]

(63) ##STR00024##

(64) LC-MS t.sub.R: 6.46 min (Exact mass: 486.32 m/z, found: 486.3 m/z).

Example 2: Preparation of 13,13-(1,4-phenylene)bis(4,7,10-trimethyl-2,5,8,11-tetraoxatetradecan-13-ol) [23]

(65) ##STR00025##

(66) LC-MS t.sub.R: 7.54 min (Exact mass: 602.40 m/z, found: 602.4 m/z).

Example 3: Preparation of 2,2-(1,4-phenylene)bis(1-(2-(2-methoxyethoxy)ethoxy)propan-2-ol) [24]

(67) ##STR00026##

(68) LC-MS t.sub.R: 4.44 min (Exact mass: 430.26 m/z, found: 430.3 m/z).

Example 4: Preparation of 2,2-(1,4-phenylene)bis(1-(2-(2-ethoxyethoxy)ethoxy)propan-2-ol) [25]

(69) ##STR00027##

(70) LC-MS t.sub.R: 5.32 min (Exact mass: 458.29 m/z, found: 458.3 m/z).

Example 5: Preparation of 2,2-(1,4-phenylene)bis(1-(2-(2-propoxyethoxy)ethoxy)propan-2-ol) [26]

(71) ##STR00028##

(72) LC-MS t.sub.R: 6.46 min (Exact mass: 486.32 m/z, found: 486.3 m/z).

Example 6: Preparation of 2,2-(1,4-phenylene)bis(1-(2-(2-butoxyethoxy)ethoxy)propan-2-ol) [27]

(73) ##STR00029##

(74) LC-MS t.sub.R: 7.60 min (Exact mass: 514.35 m/z, found: 514.4 m/z).

Example 7: Preparation of 13,13-(1,4-phenylene)bis(2,5,8,11-tetraoxatetradecan-13-ol) [28]

(75) ##STR00030##

(76) LC-MS t.sub.R: 4.62 min (Exact mass: 518.31 m/z, found: 518.3 m/z).

Example 8: Preparation of 2,2-(1,4-phenylene)bis(4,7,10,13-tetraoxaheptadecan-2-ol) [29]

(77) ##STR00031##

(78) LC-MS t.sub.R: 7.54 min (Exact mass: 602.40 m/z, found: 602.4 m/z).

Example 9: Preparation of 2,2-(1,3-phenylene)bis(1-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)propan-2-ol) [30]

(79) ##STR00032##

(80) LC-MS t.sub.R: 6.40 min (Exact mass: 486.32 m/z, found: 486.3 m/z).

Example 10: Preparation of 2,2-(1,3-phenylene)bis(1-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)propan-2-ol) [31]

(81) ##STR00033##

(82) LC-MS t.sub.R: 7.41 min (Exact mass: 602.40 m/z, found: 602.4 m/z).

Example 11: Preparation of 2,2-(1,3-phenylene)bis(1-(2-(2-methoxyethoxy)ethoxy)propan-2-ol) [32]

(83) ##STR00034##

(84) LC-MS t.sub.R: 4.56 min (Exact mass: 430.26 m/z, found: 430.3 m/z).

Example 12: Preparation of 2,2-(1,3-phenylene)bis(1-(2-(2-ethoxyethoxy)ethoxy)propan-2-ol) [33]

(85) ##STR00035##

(86) LC-MS t.sub.R: 5.26 min (Exact mass: 458.29 m/z, found: 458.3 m/z).

Example 13: Preparation of 2,2-(1,3-phenylene)bis(1-(2-(2-propoxyethoxy)ethoxy)propan-2-ol) [34]

(87) ##STR00036##

(88) LC-MS t.sub.R: 6.60 min (Exact mass: 486.32 m/z, found: 486.3 m/z).

Example 14: Preparation of 2,2-(1,3-phenylene)bis(1-(2-(2-butoxyethoxy)ethoxy)propan-2-ol) [35]

(89) ##STR00037##

(90) LC-MS t.sub.R: 7.73 min (Exact mass: 514.35 m/z, found: 514.3 m/z).

Example 15: Preparation of 13,13-(1,3-phenylene)bis(2,5,8,11-tetraoxatetradecan-13-ol) [36]

(91) ##STR00038##

(92) LC-MS t.sub.R: 4.63 min (Exact mass: 518.31 m/z, found: 518.3 m/z).

Example 16: Preparation of 2,2-(1,3-phenylene)bis(4,7,10,13-tetraoxaheptadecan-2-ol) [37]

(93) ##STR00039##

(94) LC-MS t.sub.R: 7.66 min (Exact mass: 602.40 m/z, found 602.4 m/z).

(95) LC-MS Instrument Conditions (Agilent 1100 LC): Sample Prep: 2-3 mg/mL in DMSO Column: Zorbax XDB-C184.6 mm, 5 m Column Temp: 40 C. Injection Volume: 2 L DAD: 190-600 nm collection Pump Conditions: Initial97% water (2.5 mM NH.sub.4OAc) (Solvent A) and 3% acetonitrile (Solvent B) Gradient:

(96) TABLE-US-00001 Time % % Flow (min) Solvent A Solvent B (mL/min) 0 97 3 1.0 10 0 100 1.0 25 0 100 1.0 25.1 97 3 1.0 30 97 3 1.0

(97) Mass spectra were acquired with a Micromass LCT mass spectrometer, which was coupled to the LC. Mass spectra were collected using electrospray ionization in both the positive-ion and negative ion modes. Ammonium acetate (50 mM in MeOH) was added post column (0.1 mL/min) to enhance ionization efficiency. ES+/ES scan range was 60-3300 amu (25 and 75V).

(98) General Procedure for Dehydration

(99) To a 4-necked round-bottom flask fitted with an overhead stirrer, thermocouple, and nitrogen inlet was added acetic anhydride (5 equiv.) and sodium bisulfate monohydrate (0.025 equiv.). The mixture was then heated to 65 C. and held for 30 minutes. The dicarbinol was then added dropwise over the course of 4-5 hrs. via a pressure-equalizing addition funnel. Once the addition was complete, the reaction was checked by GC. Once complete, the mix was transferred to a 1-neck round-bottom flask and the excess acetic anhydride/acetic acid was removed under reduced pressure at a temperature range of 45-65 C., with a vacuum of 20-60 mm Hg using a rotary evaporatory. The crude was taken up in toluene. The organics were then washed with 10% caustic (2) solution and then 5% ammonium hydroxide solution. The mixture was dried with MgSO4 and simultaneously treated with activated carbon. After filtration, the volatiles were removed under reduced pressure using a rotary evaporator. Light-boiling impurities were removed by distillation. The enol ether/1,1-disubstituted olefin was Kugelrohr-distilled to afford product blends.

Example 17: Preparation of, a mixture of (E,E/Z,Z)1,4-bis(1-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)prop-1-en-2-yl)benzene [6a], (E,Z)-1-(1-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)prop-1-en-2-yl)-4-(3-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)prop-1-en-2-yl)benzene [6b], and 1,4-bis(3-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)prop-1-en-2-yl)benzene [6c]

(100) ##STR00040##

(101) GC-MS t.sub.R: 25.80 min, 26.28 min, 26.80 min, 27.30 min, 28.38 min, 28.94 min (Exact mass: 450.30 m/z, found: 450.4 m/z).

Example 18: Preparation of, a mixture of (E,E/Z,Z)-1,4-bis(4,7,10-trimethyl-2,5,8,11-tetraoxatetradec-12-en-13-yl)benzene [7a], (E,Z)-4,7,10-trimethyl-13-(4-(4,7,10-trimethyl-2,5,8,11-tetraoxatetradec-13-en-13-yl)phenyl)-2,5,8,11-tetraoxatetradec-12-ene [7b], and 1,4-bis(4,7,10-trimethyl-2,5,8,11-tetraoxatetradec-13-en-13-yl)benzene [7c]

(102) ##STR00041##

(103) GC-MS t.sub.R: 43.08 (broad peak), 69.53 min (broad peak) (Exact mass: 566.38 m/z, found: 566.5 m/z).

Example 19: Preparation of, a mixture of (E,E/Z,Z)-1,4-bis(1-(2-(2-methoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [8a], (E,Z)-1-(1-(2-(2-methoxyethoxy)ethoxy)prop-1-en-2-yl)-4-(3-(2-(2-methoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [8b], and 1,4-bis(3-(2-(2-methoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [8c]

(104) ##STR00042##

(105) GC-MS t.sub.R: 23.9 min, 24.29 min, 24.48 min, 25.64 min, 25.96 min, 27.63 min (Exact mass: 394.24 m/z, found: 394.3 m/z).

Example 20: Preparation of, a mixture of (E,E/Z,Z)-1,4-bis(1-(2-(2-ethoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [9a], (E/Z)-1-(1-(2-(2-ethoxyethoxy)ethoxy)prop-1-en-2-yl)-4-(3-(2-(2-ethoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [9b], and 1,4-bis(3-(2-(2-ethoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [9c]

(106) ##STR00043##

(107) GC-MS t.sub.R: 25.64 min, 26.23 min, 26.55 min, 28.00 min, 28.47 min, 30.67 min (Exact mass: 422.27 m/z, found: 422.3 m/z).

Example 21: Preparation of, a mixture of (E,E/Z,Z)-1,4-bis(1-(2-(2-propoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [10a], (E,Z)-1-(1-(2-(2-propoxyethoxy)ethoxy)prop-1-en-2-yl)-4-(3-(2-(2-propoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [10b], 1,4-bis(3-(2-(2-propoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [10c]

(108) ##STR00044##

(109) GC-MS t.sub.R: 29.70 min, 30.67 min, 31.30 min, 33.27 min, 34.18 min, 37.58 min (Exact mass: 450.30 m/z, found: 450.3 m/z).

Example 22: Preparation of, a mixture of (E,E/Z,Z)-1,4-bis(1-(2-(2-butoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [11a], (E,Z)-1-(1-(2-(2-butoxyethoxy)ethoxy)prop-1-en-2-yl)-4-(3-(2-(2-butoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [11b], 1,4-bis(3-(2-(2-butoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [11c]

(110) ##STR00045##

(111) GC-MS t.sub.R: 36.07 min, 37.71 min, 38.86 min, 41.45 min (Exact mass: 478.33 m/z, found: 478.4 m/z).

Example 23: Preparation of, a mixture of (E,E/Z,Z)-1,4-di(2,5,8,11-tetraoxatetradec-12-en-13-yl)benzene [12a], (E,Z)-13-(4-(2,5,8,11-tetraoxatetradec-13-en-13-yl)phenyl)-2,5,8,11-tetraoxatetradec-12-ene [12b], and 1,4-di(2,5,8,11-tetraoxatetradec-13-en-13-yl)benzene [12c]

(112) ##STR00046##

(113) GC-MS t.sub.R: 39.51 min, 41.51 min, 42.78 min, 46.43 min, 48.26 min, 55.04 min (Exact mass: 482.29 m/z, found: 482.4 m/z).

Example 24: Preparation of, a mixture of (E,E/Z,Z)-1,3-bis(1-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)prop-1-en-2-yl)benzene [13a], (E/Z)-1-(1-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)prop-1-en-2-yl)-3-(3-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)prop-1-en-2-yl)benzene [13b], and 1,3-bis(3-((1-((1-methoxypropan-2-yl)oxy)propan-2-yl)oxy)prop-1-en-2-yl)benzene [13c]

(114) ##STR00047##

(115) GC-MS t.sub.R: 22.78 min, 23.14 min, 23.45 min, 23.91 min, 24.27 min, 24.59 min, 25.17 min, 25.58 min, 26.05 min (Exact mass: 450.30 m/z, found: 450.4 m/z).

Example 25: Preparation of, a mixture of (E,E/Z,Z)-1,3-bis(4,7,10-trimethyl-2,5,8,11-tetraoxatetradec-12-en-13-yl)benzene [14a], (E/Z)-4,7,10-trimethyl-13-(3-(4,7,10-trimethyl-2,5,8,11-tetraoxatetradec-13-en-13-yl)phenyl)-2,5,8,11-tetraoxatetradec-12-ene [14b], and 1,3-bis(4,7,10-trimethyl-2,5,8,11-tetraoxatetradec-13-en-13-yl)benzene [14c]

(116) ##STR00048##

(117) GC-MS t.sub.R: 41.84-43.72 min (broad peak) (Exact mass: 566.38 m/z, found: 566.5 m/z).

Example 26: Preparation of, a mixture of (E,E/Z,Z)-1,3-bis(1-(2-(2-methoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [15a], (E/Z)-1-(1-(2-(2-methoxyethoxy)ethoxy)prop-1-en-2-yl)-3-(3-(2-(2-methoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [15b], 1,3-bis(3-(2-(2-methoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [15c]

(118) ##STR00049##

(119) GC-MS t.sub.R: 22.57 min, 22.91 min, 23.08 min, 23.79 min, 24.08 min, 25.43 min (Exact mass: 394.24 m/z, found: 394.3 m/z).

Example 27-1 and Example 27-2: Preparation of a Mixture of (E,E/Z,Z)-1,3-bis(1-(2-(2-ethoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [16a], (E/Z)-1-(1-(2-(2-ethoxyethoxy)ethoxy)prop-1-en-2-yl)-3-(3-(2-(2-ethoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [16b], and 1,3-bis(3-(2-(2-ethoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [16c]

(120) ##STR00050##

(121) GC-MS t.sub.R: 24.07 min, 24.73 min, 24.80 min, 25.72 min, 25.87 min, 27.78 min (Exact mass: 422.27 m/z, found: 422.3 m/z).

(122) Example 27-1: 0.025 equiv. of sodium bisulfate used. Ratio of 16a:16b:16c=1.0:1.7:3.6.

(123) Example 27-2: 0.50 equiv. of sodium bisulfate used. Ratio of 16a:16b:16c=1.0:2.7:10.

Example 28: Preparation of a mixture of (E,E/Z,Z)-1,3-bis(1-(2-(2-propoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [17a], (E/Z)-1-(1-(2-(2-propoxyethoxy)ethoxy)prop-1-en-2-yl)-3-(3-(2-(2-propoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [17b], and 1,3-bis(3-(2-(2-propoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [17c]

(124) ##STR00051##

(125) GC-MS t.sub.R: 27.42 min, 28.16 min, 28.63 min, 29.80 min, 30.61 min, 33.20 min (Exact mass: 450.30 m/z, found: 450.4 m/z).

Example 29: Preparation of a mixture of (E,E/Z,Z)-1,3-bis(1-(2-(2-butoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [18a], (E/Z)-1-(1-(2-(2-butoxyethoxy)ethoxy)prop-1-en-2-yl)-3-(3-(2-(2-butoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [18b], and 1,3-bis(3-(2-(2-butoxyethoxy)ethoxy)prop-1-en-2-yl)benzene [18c]

(126) ##STR00052##

(127) GC-MS t.sub.R: 32.75 min, 33.89 min, 34.68 min, 36.20 min, 37.42 min, 41.29 min (Exact mass: 478.33 m/z, found: 478.4 m/z).

Example 30: Preparation of a mixture of (E,E/Z,Z)-1,3-di(2,5,8,11-tetraoxatetradec-12-en-13-yl)benzene [19a], (E/Z)-13-(3-(2,5,8,11-tetraoxatetradec-13-en-13-yl)phenyl)-2,5,8,11-tetraoxatetradec-12-ene [19b], and 1,3-di(2,5,8,11-tetraoxatetradec-13-en-13-yl)benzene [19c]

(128) ##STR00053##

(129) GC-MS t.sub.R: 35.57 min, 36.92 min, 37.81 min, 39.66 min, 41.11 min, 45.59 min (Exact mass: 482.29 m/z, found: 482.3 m/z).

(130) Instrument ParametersAgilent 6890N GC with Agilent 5975B VL MSD

(131) Sample Prep: 100 L sample diluted to 1 mL with toluene; Column: DB-5 30 m0.25 mm0.25 m; Oven Ramp: 0-4.5 mins at 40 C.; Ramp 20 C/min to 280 C, Hold 53.5 mins; Injector: Temperature250 C.; Split Flow65 mL/min; Carrier Flow Rate1.3 mL/min; Volume1.0 L; MS: Transfer Line280 C.; Ion Source Temp230 C.; Mass Range34-700 amu. Methyl palmitate t.sub.R=16.6 min using the above method.

(132) ConditionsAgilent 1100 LC

(133) Sample Prep: 2-3 mg/mL in DMSO Column A: Zorbax XDB-C184.6 mm, 5 m Column B: Poroshell EC-C18 504.6 mm, 2.7 m Column Temp: 40 C. Injection Volume: 2 L DAD: 190-600 nm collection Pump Conditions: Initial97% water (2.5 mM NH.sub.4OAc) (Solvent A) and 3% acetonitrile (Solvent B) Gradient:

(134) TABLE-US-00002 Time % Solvent % Solvent Flow (min) A B (mL/min) 0 97 3 1.0 10 0 100 1.0 25 0 100 1.0 25.1 97 3 1.0 30 97 3 1.0 Mass spectra were acquired with a Micromass LCT mass spectrometer, which was coupled to the LC. Mass spectra were collected using electrospray ionization in both the positive-ion and negative ion modes. Ammonium acetate (50 mM in MeOH) was added post column (0.1 mL/min) to enhance ionization efficiency. ES+/ES scan range was 60-3300 amu (25 and 75V).

(135) The invention has been described in detail with reference to the embodiments disclosed herein, but it will be understood that variations and modifications can be effected within the spirit and scope of the invention.