Piperidenylmethylidene phosphonylamidines

Details Piperidenylmethylidene phosphonylamidines Piperidenylmethylidene phosphonylamidines

1978-07-07

1980-04-15

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

2603265C, 2603265A, 2603265CA, 2603265M, 2603265J, 2605705R, 260959, 544157, 544174, 544178, 544153, 546196, 546248, 546184, 26032661, 26032687, 2603268, 26034671, 562460, 562465, 562466, 562490, 562492, 562496, C07F 924

Patent

active

041985109

ABSTRACT:
A process for the preparation of carboxylic acids represented by a formula ##STR1## wherein R.sub.1 represents hydrogen atom or a lower alkyl radical, R.sub.2 represents hydrogen atom, lower alkyl or allyl radical and R.sub.3 represents phenyl, substituted phenyl, substituted naphthyl, dibenzofuranyl or substituted biphenyl. Following novel enamine and amidine compounds as intermediates for manufacturing the carboxylic acids and processes for the manufacture of said enamine and amidine compounds ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 represent the meanings as referred to and R.sub.4 represents dimethylamino, pyrrolidyl, piperidyl or morpholyl.

REFERENCES:
patent: 3949022 (1976-04-01), Hoffmann et al.
patent: 3975522 (1976-08-01), Bader

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