Patent ID: 7473777

Claim:
A method for the production of a halogen-containing phthalocyanine compound represented by the following formula (5): wherein Z 1 -Z 16 independently stand for a hydrogen atom, NHR 1 , SR 2 , OR 3 , or a halogen atom, provided that at least one of the Z 1 - Z 16 stands for a halogen atom; R 1 , R 2 , and R 3 independently stand for a phenyl group which may be substituted, an aralkyl group which may be substituted, or an alkyl group of 1 -20 carbon atoms which may be substituted; and M stands for a metal, a metal oxide, or a metal halogenide by subjecting a phthalonitrile compound (1) represented by the following formula (1): a phthalonitrile compound (2) represented by the following formula (2): a plithalonitrile compound (3) represented by the following formula (3): and a plithalonitrile compound (4) represented by the following formula (4): wherein in the formulae (1)-(4), Z 1 -Z 16 independently stand for a hydrogen atom, NHR 1 , SR 2 , OR 3 , or a halogen atom, provided that at least one of the Z 1 -Z 16 stands for a halogen atom; R 1 , R 2 , and R 3 independently stand for a phenyl group which may be substituted, an aralkyl group which may be substituted, or an alkyl group of 1-20 carbon atoms which may be substituted, either singly or in combination with a metal compound to the cyclization, wherein the cyclization is carried out in an organic compound having a hydroxyl group and/or a carboxyl group in an amount of 0.01-10 mass parts based on 1 mass part of the phthalonitrile compounds while introducing an inert gas.