Process for the preparation of N-alkylated anilines

US5068434A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gunter Klug · Langenfeld, DE
• Hans-Josef Buysch · Krefeld, DE
• Lothar Puppe · Burscheid, DE

Key dates

• Filing date: Jan 25, 1989
• Grant date: Nov 26, 1991
• Expiry date: Jan 25, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/18
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-alkylated anilines can be prepared by reaction of anilines with lower alcohols or dialkyl ethers at elevated temperature and in the presence of zeolite catalysts of the pentasil type containing protons and having an SiO.sub.2 /Al.sub.2 O.sub.3 ratio of at least 60.