Isoindoline compounds and the manufacture and use thereof

Details Isoindoline compounds and the manufacture and use thereof Isoindoline compounds and the manufacture and use thereof

1981-03-09

1983-05-24

Demers, Arthur P.

Harness for working animal

544225, 546 6, 546 7, 548105, 548106, 548471, 548403, 260165, C07D40312, C07D41312, C07D41712

Patent

active

043851746

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: 4022770 (1977-05-01), L'Eplattier

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