Production of 1-methyl-3-phenylindans

US4012305A · kind A · utility

Assignee

• Badische Anilin- & Soda-Fabrik Aktiengesellschaft

Inventors

• Martin Fischer · Ludwigshafen, DE
• Hans-Juergen Quadbeck-Seeger
• Gerhard Kilpper · Battenberg, DE
• Hans-Georg Schecker
• Waldemar Koehler · Bischofswerda, DE

Key dates

• Filing date: Apr 25, 1973
• Grant date: Mar 15, 1977
• Expiry date: Apr 25, 1993

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S204/912
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the production of 1-methyl-3-phenylindans by dimerization of styrenes in the presence of catalysts and of organic compounds which absorb light of from 2000 to 8000 A and which are irradiated with such light. The compounds which can be prepared by the process of the invention are valuable starting materials for the production of dyes and pest control agents.