Piperdinyl substituted 1,4-diaza-2-cycloalkanones and derivative

Details Piperdinyl substituted 1,4-diaza-2-cycloalkanones and derivative Piperdinyl substituted 1,4-diaza-2-cycloalkanones and derivative

1979-10-22

1981-11-03

Rizzo, Nicholas S.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

260239BC, 544359, C07D24104

Patent

active

042987377

ABSTRACT:
Improved process for the synthesis of piperidinyl substituted 1,4-diaza-2-cycloalkanones and substituted derivatives thereof, involving solid-liquid phase transfer phenomena. More specifically, the subject compounds are prepared by combining a piperidinyl substituted diamine and a suitable coreactant in the presence of a phase transfer catalyst and caustic. Compounds prepared in this fashion are suitable as UV stabilizers for photodegradable plastics.

REFERENCES:
patent: 3311624 (1967-03-01), Ohnacker et al.
patent: 4190571 (1980-02-01), Lai et al.

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