Protic acid immobilized on solid support as an extremely efficient recyclable catalyst system for a direct and atom economical esterification of carboxylic acids with …
…, B Singh, SV Chankeshwara, AR Patel
Index: Chakraborti, Asit K.; Singh, Bavneet; Chankeshwara, Sunay V.; Patel, Alpesh R. Journal of Organic Chemistry, 2009 , vol. 74, # 16 p. 5967 - 5974
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Citation Number: 66
Abstract
A convenient and clean procedure of esterification is reported by direct condensation of equimolar amounts of carboxylic acids with alcohols catalyzed by an easy to prepare catalyst system of perchloric acid immobilized on silica gel (HClO4− SiO2). The direct condensation of aryl, heteroaryl, styryl, aryl alkyl, alkyl, cycloalkyl, and long-chain aliphatic carboxylic acids with primary/secondary alkyl/cycloalkyl, allyl, propargyl, and long-chain ...
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