| abstract |
PURPOSE: To obtain the titled compound having excellent chemical resistance, storability, etc., and useful as an electron-accepting compound for recording material, etc., on an industrial scale, by reacting a hydroxysalicylic acid derivative with an alkyl halide or alkylsulfonate. n CONSTITUTION: The objective compound can be produced by reacting a hydroxysalicylic acid derivative with an alkyl halide or alkylsulfonate in a polar solvent (e.g. methyl ethyl ketone, acetonitrile, etc.) at 50W150°C, preferably 65W100°C. The amount of the alkyl halide or alkylsulfonate is 0.7W1.5mol, preferably 0.8W1.2mol per 1mol of the hydroxysalicylic acid. n COPYRIGHT: (C)1987,JPO&Japio |