Method of preparing .beta.-amino derivatives of .alpha.,.beta.-u

Details Method of preparing .beta.-amino derivatives of .alpha.,.beta.-u Method of preparing .beta.-amino derivatives of .alpha.,.beta.-u

1976-10-27

1977-09-06

Weinberger, Lorraine A.

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

Organic compounds

Carboxylic acid esters

C07C11912

Patent

active

040468038

ABSTRACT:
A method for the preparation of .beta.-amino derivatives of .alpha.,.beta.-unsaturated esters of the formula CH.sub.3 C(NH.sub.2)=CHCOOR' where R' is C.sub.1 to C.sub.10 linear or branched alkyl or substituted C.sub.1 to C.sub.10 linear or branched alkyl. A reaction mixture of an acetoacetate ester of the formula CH.sub.3 C(O)CH.sub.2 C(O)OR' wherein R' is the same as defined above is first formed in an organic solvent and this mixture reacted with aqueous ammonium hydroxide in the presence of a salt of ammonia or of a metal selected from the group consisting of lithium, zinc, cadmium, cerium and lead. The salt is soluble in the organic solvent to an extent sufficient to catalyze the reaction between ammonia and the ester.

REFERENCES:
patent: 2822377 (1958-02-01), Kaiser
patent: 2852527 (1958-09-01), Steck
patent: 2987491 (1961-06-01), Bader
patent: 3137698 (1964-06-01), Pfister
patent: 3235361 (1966-02-01), Loux
patent: 3412139 (1968-11-01), Eggensperger

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