Hexahydropyrimidines

Details Hexahydropyrimidines Hexahydropyrimidines

1973-10-15

1978-04-18

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260251R, 424251, 44 63, C07D23974

Patent

active

040851052

ABSTRACT:
This invention relates to hexahydropyrimidines (HHP) and to the preparation of HHP by the reduction of tetrahydropyrimidines (THP). HHP is preferably prepared by reacting carbonyls, such as ketones and aldehydes, with ammonia in the presence of ammonium formate to form THP and then reducing THP to HHP. The preferred carbonyl is a cycloalkylene ketone such as cyclohexyl ketone or substituted cyclohexyl ketone.

REFERENCES:
patent: 2486648 (1949-11-01), Haury
patent: 2525855 (1950-10-01), Bergmann
patent: 3936279 (1976-02-01), Alink et al.
Razuvaev et al., Chemical Abstracts, vol. 50, 13904f, (1956).
Svetozarskii et al., Chemical Abstracts, vol. 55, 555f, 6486a (1961).
Armarego et al., Chemical Abstracts, vol. 71, 69950t, (1969).

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