Method for the isomerization of cis-2-pentenenitrile to form trans-3-pentenenitrile

US7361778B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Michael Bartsch · Neustadt, DE
• Robert Baumann · Mannheim, DE
• Gerd Haderlein · Bad Kötzting, DE
• Miquel Angel Flores · Aranjuez, ES
• Tim Jungkamp · Sandhausen, DE
• Hermann Luyken · Ludwigshafen, DE
• Jens Scheidel · Hirschberg, DE
• Wolfgang Siegel · Schifferstadt, DE
• Dagmar Pascale Kunsmann-Keitel · Ludwigshafen am Rhein, DE

Key dates

• Filing date: Apr 16, 2004
• Grant date: Apr 22, 2008
• Expiry date: Dec 1, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C253/30
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for isomerizing cis-2-pentenenitrile to trans-3-pentenenitrile in the presence of aluminum oxide as a catalyst, wherein the aluminum oxide has a BET surface area of at least 50 m2/g.