Process for preparing triacetone amine and other oxopiperidines

Details Process for preparing triacetone amine and other oxopiperidines Process for preparing triacetone amine and other oxopiperidines

1988-03-21

1989-05-16

Schwartz, Richard A.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21174

Patent

active

048311464

ABSTRACT:
This invention relates to an improved catalytic process for producing 2,2,6,6-tetraalkyl-4-oxopiperidines by the reaction of a ketone and ammonia. The improvement resides in using a catalytic amount of a super acid, i.e., a perfluorinated sulfonic acid polymer or perfluorinated alkyl sulfonic acid as the catalyst.

REFERENCES:
patent: 3904625 (1975-09-01), Oudealink
patent: 3943139 (1976-03-01), Orban et al.
patent: 3959295 (1976-05-01), Orban et al.
patent: 3959298 (1976-05-01), Murayamai et al.
patent: 4275211 (1981-06-01), Orban et al.
patent: 4356308 (1982-10-01), Wiezer et al.

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