Manufacture of arylamines

US4067903A · kind A · utility

Assignee

• BASF SE

Inventors

• Helmut Hoch
• Horst Scheuermann · Ludwigshafen, DE

Key dates

• Filing date: Sep 22, 1976
• Grant date: Jan 10, 1978
• Expiry date: Sep 22, 1996

Classification

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

Abstract

Arylamines are manufactured by reacting alcohols with amines in the presence of phosphorus-III compounds. The arylamines I manufactured by the process of the invention are intermediates for the manufacture of crop protection agents, optical brighteners, especially amino-coumarin derivatives, and dyes, especially of the xanthene, pyronine, rhodamine, oxazine, azo, triphenylmethane and diphenylmethane series.