Process for preparing 3-(cyanimino)-3-amino-propionitriles

Details Process for preparing 3-(cyanimino)-3-amino-propionitriles Process for preparing 3-(cyanimino)-3-amino-propionitriles

1977-07-29

1978-07-04

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260239A, 260239B, 26032662, 260465E, 2604655R, 544 59, 544163, 544323, 544402, 544398, 544295, C07D29514, C07D21114

Patent

active

040987914

ABSTRACT:
An improved multistep process for the production of intermediates for hypotensive compounds, which intermediates are of the formula V: ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl of 1 to 4 carbon atoms, inclusive, alkenyl of 3 or 4 carbon atoms, cycloalkyl from 3 to 7 carbon atoms, phenylalkyl in which the alkyl group is defined as above, or the group ##STR2## is a heterocyclic moiety of 4 to 8 ring members, e.g., azetidinyl, piperidino, pyrrolidinyl, hexahydroazepinyl, or heptamethyleneimino, each of which can be substituted by one or two methyl groups, N-alkylpiperazino, wherein alkyl is defined as above, morpholino, or thiomorpholino, and wherein R.sub.3 is hydrogen or alkyl of 1 to 4 carbon atoms, inclusive, starts with the corresponding secondary amine I ##STR3## wherein R.sub.1 and R.sub.2 have the significance of above. SU

REFERENCES:
patent: 3910928 (1975-10-01), McCall et al.
patent: 3948915 (1976-04-01), Hirayama et al.
patent: 4032559 (1977-06-01), McCall et al.
Allenstein, E. et al., Chem. Ber., 100, 2604-2615, (1967); 101, 1232-1243, (1968).
Chemical Abstracts, 78:158999c, (1973), [German Offen. 2,246,376, 3/29/73].

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