Process for the alkylation of alkyl-or benzylcyanogen derivatives in the presence of trialkylamines or trialkylphosphines

US6143896A · kind A · utility

Assignee

• Aventis Pharma Deutschland GmbH · DE

Inventors

• Gerhard Korb · Großkrotzenburg, DE
• Hans-Wolfram Flemming · Usingen, DE
• Rudolf Lehnert · Mainz, DE

Key dates

• Filing date: Dec 16, 1998
• Grant date: Nov 7, 2000
• Expiry date: Dec 16, 2018

Classification

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

Abstract

A process for the alkylation of compounds of the formula II ##STR1## where the reaction with the alkylating agent is carried out in the presence of a base and a trialkylamine and/or trialkylphosphine.