Process for the preparation of diacetone acrylamide

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

1980-06-02

1982-11-23

Randolph, John D.

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

Organic compounds

Amino nitrogen containing

544 97, 564131, 564206, C07C10202

Patent

active

043606962

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).

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patent: 3542867 (1970-11-01), Foecking
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patent: 4140714 (1979-02-01), Mogoleako et al.
patent: 4140715 (1979-02-01), Bernady et al.
patent: 4239885 (1980-12-01), Richmond

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