Method for producing polycarboxylic acid ester compound

A method for producing a polycarboxylic acid ester compound (1) represented by general formula (1), the method comprising a step of reaction with an aliphatic alcohol (4), the step including reacting at least one selected from the group consisting of a polycarboxylic acid ester compound (2) represented by general formula (2) and a polycarboxylic acid ester compound (3) represented by general formula (3) with the aliphatic alcohol (4) represented by general formula (4) to obtain the polycarboxylic acid ester compound (1) represented by general formula (1):

• wherein each Ar independently represents a “(2+m)-valent” monooxy aromatic hydrocarbon group having 6 to 20 carbon atoms, each R1 independently represents a linear or branched alkyl group having 1 to 6 carbon atoms or a cyclic alkyl group having 5 to 6 carbon atoms, each R2 independently represents a linear or branched alkylene group having 1 to 4 carbon atoms, R3 represents a linear or branched alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, each m independently represents 0, 1, or 2, n represents 1 or 2, and X represents a single bond, an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, a divalent group represented by general formula (1a), (1b), or (1c), or a trivalent group represented by general formula (1d) or (1e);
• in general formula (1), an oxygen atom of Ar is bonded to an aromatic hydrocarbon group included in Ar and to R2:
• wherein, in general formula (1a), R8 and R6 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms, R8 and R6 may be bonded to each other to together form a cycloalkylidene group having 5 to 20 carbon atoms, and in general formula (1b), each Ar1 independently represents an aryl group having 6 to 12 carbon atoms;
• each * in general formulas (1a), (1b), and (1c) represents a bonding position:
• wherein, in general formula (1d), R7 represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms;
• in general formula (1e), R8 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. Each * in general formulas (1d) and (1e) represents a bonding position:
• wherein Ar, R1, R2, R3, m, n, and X in general formula (2) are as defined in general formula (1), and each R4 independently represents a linear or branched alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms that is different from R3:
• wherein Ar, R1, R2, m, n, X, and R3 in general formula (3) are as defined in general formula (1), and each r independently represents an integer of 1 to 4. At least one r is 2, 3, or 4:
• HO—R3 (4)
• wherein R3 in general formula (4) is as defined in general formula (1).