Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidi

Details Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidi Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidi

Filed on

1986-12-22

Date issued

1988-03-29

Examiner

Jiles, Henry R.

Patent Class

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

SubClass

Organic compounds

SubSubClass

Heterocyclic carbon compounds containing a hetero ring...

Other Related Categories

C07D21174

Type

Patent

Status

active

Patent number

047345020

Description

ABSTRACT:
2,2,6,6-tetramethyl-4-oxopiperidine is prepared from acetone and ammonia in the presence of catalytic amounts of active halogen compounds selected from sulfonylhalides, sulfurylhalides, N-haloamides, N-haloimides, .beta.-haloesters, .alpha.-haloketones, .alpha.-halohydroxy compounds, and .beta.-halonitriles.

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Chem. Abstracts, vol. 92(3), Abstract No. 22386g, (1980).
Chem. Abstracts, vol. 95(3), Abstract No. 24824j, (1981).
Sosnovsky et al., "Prep. Triacetoneamine", Z. Naturforsch 32b, 328-337 (1977).
Matter, "Uber ein Neues Reaction Product aus Acetone und Ammonia", Helv. Chim. Acta, XXV, 1114-1122 (1947).

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