CaO-catalyzed preparation of isophoronenitrile

US6822110B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Dagmar Pascale Kunsmann-Keitel · Ludwigshafen am Rhein, DE
• Gerold Braun · Ludwigshafen, DE
• Ingo Münster · Haßloch, DE
• Klaus Mundinger · Schifferstadt, DE
• Gunter Scherhag · Heidelberg, DE
• Wolfgang Siegel · Schifferstadt, DE

Key dates

• Filing date: Nov 6, 2003
• Grant date: Nov 23, 2004
• Expiry date: Nov 6, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C253/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention describes a process for preparing isophoronenitrile by adding HCN to isophorone. The catalyst used is CaO which has a BET surface area of >1.5 m2/g. The use of such a catalyst achieves high yields and selectivities.