FIELD: chemistry.
SUBSTANCE: invention relates to a method for chloromethylation of phthalocyanines. The method is realised while heating and using an aluminium chloride catalyst and a chloromethylation agent - α,α'-dichlorodimethyl ether. The chloromethylation agent used is a reaction mixture obtained by reacting thionyl chloride and paraform containing α,α'-dichlorodimethyl ether and the process is carried out at 85-100°C.
EFFECT: method enables to obtain phthalocyanines with high degree of chloromethylation while increasing safety and environmental friendliness of production, low catalyst consumption and technological effectiveness of the process.
5 ex
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Authors
Dates
2010-12-10—Published
2009-08-17—Filed