Process for the preparation of diacetone acrylamide

Details Process for the preparation of diacetone acrylamide Process for the preparation of diacetone acrylamide

1978-06-28

1980-12-16

Douglas, Winston A.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

564131, 564204, C07D41312, C07C 9716

Patent

active

042398851

ABSTRACT:
A process is disclosed whereby acrylonitrile and diacetone alcohol are reacted in at least 93% sulfuric acid to form a novel intermediate reaction product which is recovered as a crystalline solid, washed with an organic solvent to remove colored oily impurities along with sulfuric acid, and hydrolyzed to produce diacetone acrylamide, a reactive monomer useful for preparing polymeric components of photographic films and adhesives. The intermediate reaction product is identified as 5,6-dihydro-6-hydroxy-4,4,6-trimethyl-2-vinyl-1,3(4H)-oxazine sulfate (1:1).

REFERENCES:
patent: 3277056 (1966-10-01), Coleman
patent: 3425942 (1969-02-01), Coleman
patent: 3542875 (1970-11-01), Raymond
patent: 3649688 (1972-03-01), Gordon et al.

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