Mixtures of isomeric substituted phthalocyanines, and process fo

Details Mixtures of isomeric substituted phthalocyanines, and process fo Mixtures of isomeric substituted phthalocyanines, and process fo

1995-09-18

1997-09-02

Ford, John M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540122, 540140, C09B 4718, C09B 6712

Patent

active

056633262

ABSTRACT:
Mixtures of four .alpha.-alkoxy-substituted phthalocyanine isomers, predominantly ##STR1## or of four .beta.-alkoxy-substituted phthalocyanine isomers, where
Me is a divalent metal atom or a divalent oxo metal,
R.sub.1 is a linear or branched C.sub.1 -C.sub.16 alkyl, C.sub.3 -C.sub.16 alkenyl or C.sub.3 -C.sub.16 alkynyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkoxy, --CN, NO.sub.2, halogen, --OH, phenyl, cyanophenyl, nitrophenyl, halophenyl, hydroxyphenyl or (C.sub.1 -C.sub.12 alkoxy)phenyl,
wherein two isomers of the formula II and of the formula III make up at least 80% of the total mixture and the two other isomers make up at most 20% of the total mixture, with the ratio between the compounds of the formula II and the compounds of the formula III being from 0.3 to 3.0:1.
The isomer mixtures can be obtained by reacting .alpha.- or .beta.-alkoxyphthalodinitriles in the presence of a metal salt, a Lewis acid, a nitroaromatic compound as solvent and at least equimolar amounts of urea, based on the phthalodinitrile.

REFERENCES:
patent: H477 (1988-06-01), Barger et al.
patent: 5280114 (1994-01-01), Itoh et al.
Derwent Abstract 89-314182/43 of JP-A-01/233,401 1989.
Derwent Abstract 93-021894/03 of JP-A-04/348,168 1993.
M. Emmelius et al., Angewandte Chemie 1989/11, pp. 1475-1502.
Nouveau Journal De Chimie, vol. 6, pp. 653-658 (1982).
Itoh et al. C.A. 118 : 214980., 1993 Amorphous phthalocanines or their mixtures.

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