Process for preparing 3-cyano-3,5,5-trimethylcyclohexanone

US9187412B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Markus Schwarz · Haltern am See, DE
• Andreas Merkel · Recklinghausen, DE
• Joerg-Joachim Nitz · Essen, DE
• Gerda Grund · Coesfeld, DE

Key dates

• Filing date: Jun 5, 2012
• Grant date: Nov 17, 2015
• Expiry date: Jun 5, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention refers to the preparation of 3-cyano-3,5,5-trimethylcyclohexanone (isophorone nitrile, abbreviation IPN) using a calcium alkoxide, particularly calcium ethoxide, as catalyst.