Patent ID: 8318964

Claim:
A method for producing an ester compound having non-heterocyclic groups, which comprises: subjecting a carboxylic acid and an alcohol to a dehydration-condensation reaction with adding no solvent or 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 alcohol is represented by formula (9): HO-(T 1 -O) n —H (9), wherein T 1 is an alkylene group having 1 to 4 carbon atoms, and n is an integer of 1 to 5, the carboxylic acid is represented by formula (2): R 2 —COOH (2), wherein R 2 represents an alkyl group having 1 to 18 carbon atoms, an oxygen-atom-containing alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, which may have a substituent, wherein the substituent of the alkyl group or the alkenyl group is selected from the group consisting of a halogen atom, a haloalkyl group, alkoxy group, a haloalkoxy group, a thioalkoxy group, an acyl group, a substituted amino group, a carboxyl group, a cyano group, a nitrile group, and a nitro group, and the substituent of the aryl group or the aralkyl group is selected from the group consisting of a halogen atom, an alkyl group, a haloalkyl group, an alkenyl group, an alkoxy group, a haloalkoxy group, a thioalkoxy group, an acyl group, a substituted amino group, a hydroxyl group, a cyano group, a carboxyl group, a nitrile group, and a nitro group, and the ester compound obtained from the above alcohol of the formula (9) is a compound represented by a formula (10): R 2 —COO-(T 1 -O) n —OC—R 2 (10), wherein R 2 , T 1 , and n are the same as the above.