Process for preparation of 1-alkyl-3-methylpiperidone-2 and 1-al

Details Process for preparation of 1-alkyl-3-methylpiperidone-2 and 1-al Process for preparation of 1-alkyl-3-methylpiperidone-2 and 1-al

1997-05-08

1998-09-15

Chang, Ceila

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21136

Patent

active

058080783

ABSTRACT:
This invention relates to an improved process for the preparation of 1-alkyl-3-methylpiperidone-2 and 1-alkyl-5-methylpiperidone-2 from 2-methylglutaronitrile wherein the selectivity of the process to bis-1,5-(methylamido)-3-methylpentane is less than 8%.

REFERENCES:
patent: 3095423 (1963-06-01), Copenhaver
patent: 3673251 (1972-06-01), Frampton et al.
patent: 3781298 (1973-12-01), Davis
patent: 3966763 (1976-06-01), Greene
patent: 4042599 (1977-08-01), Greene
patent: 4152331 (1979-05-01), Meijer et al.
patent: 5449780 (1995-09-01), Kosak

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