Process for the preparation of cyclopropylamine

Details Process for the preparation of cyclopropylamine Process for the preparation of cyclopropylamine

1989-10-18

1991-07-16

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

564414, 564448, 564488, C07C20956, C07C20958

Patent

active

050326872

ABSTRACT:
The present process for the preparation of cyclopropylamine by the so-called Hofmann degradation of cyclopropanecarboxamide is characterized in that the cyclopropanecarboxamide is employed in the form of a solution. The new process can be carried out at 5.degree.-35.degree. C. The cyclopropylamine is obtained after introducing the reaction mixture into a concentrated alkali metal hydroxide solution.

REFERENCES:
patent: 3711549 (1973-01-01), Phillips et al.
Roger Adams "Organic Reactions" vol. III, pp. 265-270, 280-283, 288, 1946, ohn Wiley & Sons, New York, U.S.A. E. S. Wallis et al.: The Hofmann Reaction.
Justas Liebigs Annalen Der Chemie, vol. 499, pp. 1-25, 1932 Verlag Chemie, Weinheim/Bergstr. und Berlin, DE; P. Lipp et al.: "Studien in der Cyclopropan-Reihe, Cyclopropanon" *pp. 12-14*.

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