Patent classifications
C07C45/516
Process for preparing 2,6-dialkylphenylacetic acids
The invention relates to a multi-stage process for preparing 2,6-dialkylphenylacetic acids of the general formula (I) by reacting 2,6-dialkylbromobenzenes with (1) magnesium, (2) a formamide, (3) an acid, (4) hydrogenation of the benzaldehyde obtained, (5) activation of the benzyl alcohol obtained, (6) cyanation of the activated benzyl alcohol and (7) hydrolysis of the nitrile obtained.
Process for preparing 2,6-dialkylphenylacetic acids
The invention relates to a multi-stage process for preparing 2,6-dialkylphenylacetic acids of the general formula (I) by reacting 2,6-dialkylbromobenzenes with (1) magnesium, (2) a formamide, (3) an acid, (4) hydrogenation of the benzaldehyde obtained, (5) activation of the benzyl alcohol obtained, (6) cyanation of the activated benzyl alcohol and (7) hydrolysis of the nitrile obtained.
Manufacturing method for high-purity cyclohexenone long-chain alcohol
This invention relates to a method for producing a high-purity cyclohexenone long-chain alcohol represented by formula I, and produces the compound of formula I by a metal-mediated Barbier reaction. The method of the present invention has advantages in its short scheme, high yield, and high-purity product, and is suitable for industrial scale up. ##STR00001##
Manufacturing method for high-purity cyclohexenone long-chain alcohol
This invention relates to a method for producing a high-purity cyclohexenone long-chain alcohol represented by formula I, and produces the compound of formula I by a metal-mediated Barbier reaction. The method of the present invention has advantages in its short scheme, high yield, and high-purity product, and is suitable for industrial scale up. ##STR00001##
PROCESS FOR PREPARING 2,6-DIALKYLPHENYLACETIC ACIDS
The invention relates to a multi-stage process for preparing 2,6-dialkylphenylacetic acids of the general formula (I) by reacting 2,6-dialkylbromobenzenes with (1) magnesium, (2) a formamide, (3) an acid, (4) hydrogenation of the benzaldehyde obtained, (5) activation of the benzyl alcohol obtained, (6) cyanation of the activated benzyl alcohol and (7) hydrolysis of the nitrile obtained.
PROCESS FOR PREPARING 2,6-DIALKYLPHENYLACETIC ACIDS
The invention relates to a multi-stage process for preparing 2,6-dialkylphenylacetic acids of the general formula (I) by reacting 2,6-dialkylbromobenzenes with (1) magnesium, (2) a formamide, (3) an acid, (4) hydrogenation of the benzaldehyde obtained, (5) activation of the benzyl alcohol obtained, (6) cyanation of the activated benzyl alcohol and (7) hydrolysis of the nitrile obtained.
MANUFACTURING METHOD FOR HIGH-PURITY CYCLOHEXENONE LONG-CHAIN ALCOHOL
This invention relates to a method for producing a high-purity cyclohexenone long-chain alcohol represented by formula I, and produces the compound of formula I by a metal-mediated Barbier reaction. The method of the present invention has advantages in its short scheme, high yield, and high-purity product, and is suitable for industrial scale up.
##STR00001##
MANUFACTURING METHOD FOR HIGH-PURITY CYCLOHEXENONE LONG-CHAIN ALCOHOL
This invention relates to a method for producing a high-purity cyclohexenone long-chain alcohol represented by formula I, and produces the compound of formula I by a metal-mediated Barbier reaction. The method of the present invention has advantages in its short scheme, high yield, and high-purity product, and is suitable for industrial scale up.
##STR00001##
Aromatic compounds from furanics
Described are methods for preparing phenols, benzene carboxylic acids, esters and anhydrides thereof from furanic compounds by reaction with a dienophile, wherein the furanic compounds are reacted with a hydrazine and/or oxime and then reacted with a dienophile.
Aromatic compounds from furanics
Described are methods for preparing phenols, benzene carboxylic acids, esters and anhydrides thereof from furanic compounds by reaction with a dienophile, wherein the furanic compounds are reacted with a hydrazine and/or oxime and then reacted with a dienophile.