Process for the production of maleimides

Details Process for the production of maleimides Process for the production of maleimides

1977-03-30

1979-01-02

Tovar, Jose

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603265S, 2603265SF, 2603265C, 2603265FM, 26032633, 26032641, C07D20744

Patent

active

041327152

ABSTRACT:
There is described a process for the production of maleimides, particularly N-substituted maleimides or N,N'-bis-maleimides, by isomerization of the corresponding isoimides in the presence of specific catalysts, such as mixtures of phenol and triethylamine. Maleimides of high purity and in good to very good yields under mild conditions and with the use of small amounts of catalyst are obtained by the process according to the invention.

REFERENCES:
patent: 2980694 (1961-04-01), Sauers et al.
patent: 3855239 (1974-12-01), Crivello

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