Process for the manufacture of metal complexes of isoindoline az

Details Process for the manufacture of metal complexes of isoindoline az Process for the manufacture of metal complexes of isoindoline az

1982-09-24

1985-01-29

Daus, Donald G.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

546 7, 546 6, 548105, 548106, 548403, C07F 108, C07F 300, C07F 1500

Patent

active

044967276

ABSTRACT:
The invention relates to a simplified process for the manufacture of 1:1 metal complexes of isoindoline azines of the formula ##STR1## wherein R is hydrogen, alkyl or aryl, Q contains an isocyclic or heterocyclic radical, acyl, carbamoyl or thiocarbamoyl, and Y is the radical of an active methylene group or aromatic amine, which comprises reacting a compound HQ or a hydrazone with an ortho ester or amidine in the presence of a metal donor at elevated temperature in a polar solvent. Pigments made by this process are lightfast and are useful in coloring plastics.

REFERENCES:
patent: 4132708 (1979-01-01), L'Eplattenier et al.
Houben-Weyl, vol. VII, Part 1, p. 45 (1954.

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