Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1989-12-26
1991-04-23
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
526219, 534583, 534587, 534838, 534886, 534887, C07C24504, C08F 404
Patent
active
050101790
ABSTRACT:
The preparation of mixed, symmetrical azonitrile initiators prepared from keto acids and aminonitrile is disclosed. A keto acid of the formula ##STR1## is reacted with M(CN).sub.x and an ammonia source to obtain an aminonitrile metal carboxylate of the formula ##STR2## The aminonitrile metal carboxylate is reacted with M.sub.1 (OCl).sub.x in the presence of a surfactant to form an azonitrile metal carboxylate. The excess M.sub.1 (OCl).sub.x is reacted with an aminonitrile of the formula ##STR3## in the presence of the surfactant to form a symmetrical azonitrile initiator ##STR4## The aminonitrile metal carboxylate is reacted with mineral acid to give the symmetrical azonitrile compound of the formula ##STR5## R.sub.1 is an alkyl group containing from about 1 to about 12 carbon atoms and R.sub.2 is an alkylene group containing from 1 to about 12 carbon atoms. M is a metal comprising lithium, sodium, potassium, magnesium or calcium; M.sub.1 is a metal comprising sodium, potassium or calcium; and X is the valence of M and M.sub.1.
REFERENCES:
patent: 3541132 (1970-11-01), Knowles
patent: 4252717 (1981-02-01), Wake et al.
Higel Floyd D.
Hudak Daniel J.
The B. F. Goodrich Company
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