Aromatic dicarbinols

Abstract

Disclosed are aromatic dicarbinol compounds that may have utility in a variety of chemical applications such as plasticizers, diluents, wetting agents and paint additives and as intermediates in chemical processes. The aromatic dicarbinols have particular utility as reactants in processes for the synthesis of aromatic enol ether compounds.

Claims

1. A compound according to Formula I: ##STR00027## wherein: A is (C.sub.8-20) aryl; R.sup.1a and R.sup.1b are independently ##STR00028## or ##STR00029## each R.sup.4 is independently (C.sub.1-12)alkyl, 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; each R.sup.6 is (C.sub.1-4)alkoxy, or oxo; and each n is independently an integer from 1 to 15.

2. The compound of claim 1 wherein A is 1,2-, 1,3-, or 1,4-disubstituted phenyl.

3. The compound of claim 1 wherein R.sup.4 is hydrogen or ethyl.

4. The compound of claim 1 wherein, n is an integer from 1 to 4.

5. The compound of claim 1 wherein the composition has a volatile organic content of less than 50 wt % according to ASTM D6886.

6. An aromatic dicarbinol compound having Formulas 1-16: ##STR00030## ##STR00031## ##STR00032## ##STR00033## and isomers 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 ethenyl, 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) Presented herein are compounds which can be used to make enol ethers which have can be used as diluents, wetting agents, coalescing aids and paint additives.

(16) In some embodiments the invention is a compound according to Formula I:

(17) ##STR00004## wherein: A is (C.sub.8-20) aryl; R.sup.1a and R.sup.1b are independently

(18) ##STR00005##
or

(19) ##STR00006## each R.sup.4 is independently (C.sub.1-12)alkyl, 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; each R.sup.6 is (C.sub.1-4)alkoxy, or oxo; and each n is independently an integer from 1 to 15.

(20) In some embodiments, A is 1,2-, 1,3-, or 1,4-disubstituted phenyl. In some embodiments, each n is an integer from 1 to 3.

(21) In some embodiments 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 (C.sub.2-12)alkenyl. In some embodiments, each R.sup.4 is C(O)R.sup.5.

(22) In some embodiments of, 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.

(23) In some embodiments 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.

(24) In some embodiments, the compounds of Formulas I 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 %.

(25) Compositions

(26) Disclosed are aromatic dicarbinol compounds that have particular utility as reactants in processes for the synthesis of aromatic enol ether compounds.

(27) In some embodiments, the composition comprises the dicarbinol compounds represented by Formulas I. In some embodiments, the compounds of Formula I are aromatic dicarbinols represented by Formulas 1-16:

(28) ##STR00007## ##STR00008## ##STR00009## ##STR00010##

(29) The aromatic dicarbinol compounds depicted by Formulas 1-16 are representative of the aromatic dicarbinol compounds claimed herein. Isomers of the aromatic dicarbinol compounds depicted by Formulas 1-16 are expected to be produced during synthesis of the aromatic dicarbinol compounds depicted by Formulas 1-16. All isomers of the aromatic dicarbinol compounds depicted by Formulas 1-16 and are within the scope of the claims set forth herein.

(30) The aromatic dicarbinol compounds of the 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. Thus, 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

(31) 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

(32) 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.

(33) General Procedure for Epoxide Opening

(34) 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. (usually over the course of 1 to 1.5 hrs). Once the addition of base was complete, the reaction was monitored by 1H NMR (aliquot was dissolved in DMSO-d6). 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) [1]

(35) ##STR00011##

(36) 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) [2]

(37) ##STR00012##

(38) 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) [3]

(39) ##STR00013##

(40) 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) [4]

(41) ##STR00014##

(42) 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) [5]

(43) ##STR00015##

(44) 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) [6]

(45) ##STR00016##

(46) 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) [7]

(47) ##STR00017##

(48) 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) [8]

(49) ##STR00018##

(50) 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) [9]

(51) ##STR00019##

(52) 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) [10[

(53) ##STR00020##

(54) 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) [11]

(55) ##STR00021##

(56) 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) [12]

(57) ##STR00022##

(58) 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) [13]

(59) ##STR00023##

(60) 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) [14]

(61) ##STR00024##

(62) 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) [15}

(63) ##STR00025##

(64) 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) [16]

(65) ##STR00026##

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

(67) 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: 24 DAD: 190-600 nm collection Pump Conditions: Initial97% water (2.5 mM NH.sub.4OAc) (Solvent A) and 3% acetonitrile (Solvent B) Gradient:

(68) TABLE-US-00001 % % 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 spectromenter, 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 scane range was 60-3300 amu (25 and 75V).

(69) 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.