Patent ID: 9278900
Filing Date: 2016-03-08
CPC Classification: C07C,C07F

Claim Text:
1. A method for producing 3,5-dimethyldodecanoic acid comprising the steps of: converting 2-methylnonyl halide (1): to a 2-methylnonyl metal reagent (2):  wherein M represents a monovalent or divalent metal, m stands for 1 or 0.5, and when m stands for 1, n stands for 0 or 1, and when m stands for 0.5, n stands for 0, reacting the 2-methylnonyl metal reagent (2) with 2-ethylidene malonic acid ester (3): to form 2-(1,3-dimethyldecyl)malonic acid ester (4): as a result of 1,4-addition of the 2-methylnonyl metal reagent (2) to the 2-ethylidene malonic acid ester (3), and subjecting the 2-(1,3-dimethyldecyl)malonic acid ester (4) to decarboxylation or dealkoxycarbonylation to obtain 3,5-dimethyldodecanoic acid (5):