发明授权
US4385174A Isoindoline compounds and the manufacture and use thereof 失效
异二氢吲哚化合物及其制备和应用

Isoindoline compounds and the manufacture and use thereof
摘要:
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.
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