Process for the syntheses of monosulphonated phthalocyanines, na

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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540121, 540122, 540145, 540139, 540140, 540136, C09B 4700, C09B 6200, C09D47822

Patent

active

058891811

ABSTRACT:
Disclosed herein is a selective method for the preparation of single positional isomers of monosulphonated metallo derivatives of compounds selected from the group consisting of monosulphophthalocyanines, monosulphonaphthobenzoporphyrazines and monosulphotetraphenylporphyrins.

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