Patent ID: 8669375
Filing Date: 2014-03-11
Classification: C07C,C07D

Abstract:
1. A method for producing an ester compound having a heterocyclic group(s) which comprises: subjecting a carboxylic acid and an alcohol to a dehydration-condensation reaction with adding no solvent or with adding a nonaqueous solvent into a reaction system, in a presence of an involatile acid catalyst; then removing a residue of the acid catalyst without adding any solvent or in a nonaqueous solvent by bringing a weak basic substance into contact with the residual acid catalyst, forming a salt of the weak basic substance and the acid catalyst, and then filtering off the salt, wherein the carboxylic acid is a compound represented by a formula (2): wherein R the alcohol is a compound represented by a formula (1): wherein R wherein the heterocyclic group represented by R the substituent of the alkyl group, the alkenyl group, or the alkynyl group represented by R the substituent of the aryl group, the aralkyl group, or the heterocyclic group represented by R the ester compound obtained from the above carboxylic acid of the formula (2) and the above alcohol of the formula (1) is a compound represented by a formula (3): wherein R