PROCESS FOR PREPARATION OF 1-ALKYL-3-METHYLPIPERIDONE-2 AND 1-ALKYL-5-METHYLPIPERIDONE-2

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%. L'invention concerne un processus améli...

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Bibliographic Details
Main Author HERKES, FRANK, EDWARD
Format Patent
LanguageEnglish
French
Published 12.03.1998
Edition6
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary: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%. L'invention concerne un processus amélioré de préparation de 1-alkyl-3-méthylpipéridone-2 et 1-alkyl-5-méthylpipéridone-2 à partir de 2-méthylglutaronitrile, dans laquelle la sélectivité du processus pour bis-1,5-(méthylamido)-3-méthylpentane est inférieure à 8 %.
Bibliography:Application Number: WO1997US14223