PROCESS FOR THE PREPARATION OF 3,5-DIHYDROCARBYL -4-HYDROXYBENZYLMALONIC ACID ESTERS

摘要

PROCESS FOR PREPARING SUBSTITUTED BENZYL MALONIC ACID ESTERS Esters of 3,5-dihydrocarbyl-4-hydroxybenzyl-malonic acid are prepared by reacting a 2,6-dihydro-carbyl-4-hydroxy or -halogen substituted-methylphenol with an ester of a 1,3-dicarboxylic acid in the presence of an alkali metal hydride or an alkaline earth metal hydride. The products are useful as antioxidants.