Process for the production of bismaleinimide derivatives

Details Process for the production of bismaleinimide derivatives Process for the production of bismaleinimide derivatives

1992-11-24

1994-02-15

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20724

Patent

active

052868745

ABSTRACT:
A process for the production of bismaleinimide derivatives of the formula: ##STR1## In the first step, maleic acid anhydride of the formula: ##STR2## is converted with a methyl-bis-aniline of the formula: ##STR3## in an unhalogenated aromatic hydrocarbon as the solvent, into the corresponding amide acid. In the second step, the amide acid is converted, without isolation, in the presence of an acid catalyst, into the end product of the formula I.

REFERENCES:
Patent Abstracts of Japan, vol. 10. No. 269 (C-372) (2325), (Sep. 1986).
Patent Abstracts of Japan, vol. 7, No. 3, (C-143), (1148), (Jan. 7, 1983).

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