Patent ID: 8304538

Claim:
A method of producing a compound represented by Formula (I), which comprises: a step A of allowing an anthranilic acid compound to react with a carboxylic halide in the absence of a base, but does not comprise any step of isolating an amide intermediate compound represented by Formula (II): wherein R 1 represents a halogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an alkyl thio group having 1 to 20 carbon atoms or an aryl thio group having 6 to 20 carbon atoms; n 1 is an integer of 0 to 4; R 2 represents a bivalent or trivalent linking group selected from an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, a five- or six-membered heterocyclic group of N, O, or S and carbon atoms; and n 2 is an integer of 2 to 4, wherein the temperature of the step A is 50° C. or lower, and wherein at least one kind of a reaction solvent is used in the step A, and said at least one kind of a reaction solvent has a donor number of 10 or more.