Patent ID: 9126923
Filing Date: 2015-09-08
Classification: A01N,C07C

Abstract:
1. A method for producing (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate, comprising the steps of: isomerizing 2-isopropenyl-5-methyl-4-hexenoic acid represented by formula (1): into (E)-2-isopropyl-5-methyl-2,4-hexadienoic acid represented by formula (2): reducing the (E)-2-isopropyl-5-methyl-2,4-hexadienoic acid (2) into (E)-2-isopropyl-5-methyl-2,4-hexadienol represented by formula (3): acetylating the (E)-2-isopropyl-5-methyl-2,4-hexadienol (3) into (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate represented by formula (4): wherein Ac represents an acetyl group, and wherein the step of isomerizing comprises isomerizing in the presence of a metal alkoxide, or comprises isomerizing in the presence of the same or different metal alkoxide and subsequently isomerizing in the presence of an organic sulfur compound.