Patent classifications
C07C43/196
Non-Cryogenic, Ammonia-Free Reduction of Aryl Compounds
A method of reducing an aromatic ring or a cyclic, allylic ether in a compound includes preparing a reaction mixture including a compound including an aromatic moiety or a cyclic, allylic ether moiety, an alkali metal, and either ethylenediamine, diethylenetriamine, triethylenetetramine, or a combination thereof, in an ether solvent; and reacting the reaction mixture at from −20° C. to 30° C. for a time sufficient to reduce a double bond in the aromatic moiety to a single bond or to reduce the cyclic, allylic ether moiety.
Non-Cryogenic, Ammonia-Free Reduction of Aryl Compounds
A method of reducing an aromatic ring or a cyclic, allylic ether in a compound includes preparing a reaction mixture including a compound including an aromatic moiety or a cyclic, allylic ether moiety, an alkali metal, and either ethylenediamine, diethylenetriamine, triethylenetetramine, or a combination thereof, in an ether solvent; and reacting the reaction mixture at from −20° C. to 30° C. for a time sufficient to reduce a double bond in the aromatic moiety to a single bond or to reduce the cyclic, allylic ether moiety.
Method for preparing ethers of cycloaliphatic or araliphatic diols
The present invention relates to a method for preparing a dialkyi or dialkenyl ether of a cycloaliphatic or araliphatic diol, which comprises (i) reacting the cycloaliphatic or araliphatic diol with metallic sodium in an aprotic organic solvent in the presence of a catalytic amount of at least one monoether-monoalcohol of formula (I) wherein Y is identical or different and selected from C.sub.2-C.sub.4-alkylene, n is an integer in the range from 1 to 10, and R.sup.1 is C.sub.1-C.sub.4-Alkyl, whereby the corresponding disodium dialcoholate is obtained, reacting the disodium dialcoholate obtained in step (i) with an alkylation alkenylation reagent. ##STR00001##
Method for preparing ethers of cycloaliphatic or araliphatic diols
The present invention relates to a method for preparing a dialkyi or dialkenyl ether of a cycloaliphatic or araliphatic diol, which comprises (i) reacting the cycloaliphatic or araliphatic diol with metallic sodium in an aprotic organic solvent in the presence of a catalytic amount of at least one monoether-monoalcohol of formula (I) wherein Y is identical or different and selected from C.sub.2-C.sub.4-alkylene, n is an integer in the range from 1 to 10, and R.sup.1 is C.sub.1-C.sub.4-Alkyl, whereby the corresponding disodium dialcoholate is obtained, reacting the disodium dialcoholate obtained in step (i) with an alkylation alkenylation reagent. ##STR00001##
METHOD FOR PREPARING ETHERS OF CYCLOALIPHATIC OR ARALIPHATIC DIOLS
The present invention relates to a method for preparing a dialkyi or dialkenyl ether of a cycloaliphatic or araliphatic diol, which comprises (i) reacting the cycloaliphatic or araliphatic diol with metallic sodium in an aprotic organic solvent in the presence of a catalytic amount of at least one monoether-monoalcohol of formula (I) wherein Y is identical or different and selected from C.sub.2-C.sub.4-alkylene, n is an integer in the range from 1 to 10, and R.sup.1 is C.sub.1-C.sub.4-Alkyl, whereby the corresponding disodium dialcoholate is obtained, reacting the disodium dialcoholate obtained in step (i) with an alkylation alkenylation reagent.
METHOD FOR PREPARING ETHERS OF CYCLOALIPHATIC OR ARALIPHATIC DIOLS
The present invention relates to a method for preparing a dialkyi or dialkenyl ether of a cycloaliphatic or araliphatic diol, which comprises (i) reacting the cycloaliphatic or araliphatic diol with metallic sodium in an aprotic organic solvent in the presence of a catalytic amount of at least one monoether-monoalcohol of formula (I) wherein Y is identical or different and selected from C.sub.2-C.sub.4-alkylene, n is an integer in the range from 1 to 10, and R.sup.1 is C.sub.1-C.sub.4-Alkyl, whereby the corresponding disodium dialcoholate is obtained, reacting the disodium dialcoholate obtained in step (i) with an alkylation alkenylation reagent.
NOVEL ORGANOLEPTIC COMPOUNDS
The present invention relates to novel ((4,4,8-trimethyltricyclo[6.3.1.0.sup.2,5]dodecan-1-yl-oxy) alcohols and their use as fragrance materials.
NOVEL ORGANOLEPTIC COMPOUNDS
The present invention relates to novel ((4,4,8-trimethyltricyclo[6.3.1.0.sup.2,5]dodecan-1-yl-oxy) alcohols and their use as fragrance materials.
CALCIUM SALTS-SUPPORTED METAL CATALYST, METHOD FOR PREPARING THE SAME, AND METHOD FOR HYDRODEOXYGENATION REACTION OF OXYGENATES USING THE SAME
Disclosed herein are a calcium salts-supported metal catalyst, a method for preparing the same, and a method for the hydrodeoxygenation reaction of oxygenates using the same. The catalyst, in which a metal catalyst is supported on a carrier of a calcium salt, for example, calcium carbonate, has the effect of increasing the efficiency of hydrodeoxygenation reaction of oxygenates.
CALCIUM SALTS-SUPPORTED METAL CATALYST, METHOD FOR PREPARING THE SAME, AND METHOD FOR HYDRODEOXYGENATION REACTION OF OXYGENATES USING THE SAME
Disclosed herein are a calcium salts-supported metal catalyst, a method for preparing the same, and a method for the hydrodeoxygenation reaction of oxygenates using the same. The catalyst, in which a metal catalyst is supported on a carrier of a calcium salt, for example, calcium carbonate, has the effect of increasing the efficiency of hydrodeoxygenation reaction of oxygenates.