METHOD OF PREPARING CHLOROALUMINIUM PHTHALOCYANINE Russian patent published in 2001 - IPC

Abstract RU 2164233 C1

FIELD: medicine, more particularly preparation of colorants used in quantium electronics and preparation of medicinal agent used in photodynamic therapy of matignant neoplasms. SUBSTANCE: method comprises reacting, phthalonitrile and aluminium chloride. Aluminium chloride is previously treated with C₁-C₁₀ alcohol, and the resulting mixture is then heated with phthalonitrile at temperatures from 160 to 210 C. Method eliminates use of high-boiling organic solvents, prevents chlorination into macroring and makes it possible to prepare chloroaluminium phthalocyanine without hydroxide impurity with high yield. EFFECT: more efficient preparation method. 5 ex

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RU 2 164 233 C1

Authors

Negrimovskij V.M.

Luk'Janets E.A.

Sennikov V.A.

Krasnov A.L.

Dmitrieva N.D.

Dates

2001-03-20—Published

1999-09-17—Filed