Process for preparing isoimides

Details Process for preparing isoimides Process for preparing isoimides

1997-11-21

1999-04-06

Dentz, Bernard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

525436, 528353, 549320, 549321, 549299, 560110, 560250, 560253, C07D30766, C07D30788, C08G 6926

Patent

active

058920617

ABSTRACT:
A preparation process of isoimide comprising reacting a compound having one or more carboxyl group and one or more amide bond in the same molecule in the presence of a haloiminium salt and basic substance, and a preparation process of isoimide comprising reacting a compound having one or more carboxyl group with a compound having one or more amide bond in the presence of a haloiminium salt and basic substance are disclosed.

REFERENCES:
patent: 2937187 (1960-05-01), Wheeler et al.
patent: 2998429 (1961-08-01), Sauers et al.
patent: 3035065 (1962-05-01), Sauers et al.
patent: 4179444 (1979-12-01), Roth
patent: 4784707 (1988-11-01), Wefers et al.
patent: 5254412 (1993-10-01), Fujimoto

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