Process for the preparation of alkyl aryl ethers containing carboxyl groups

US5869735A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Stefan Antons · Leverkusen, DE
• Erich Hammerschmidt · Bensberg, DE
• Heinz U. Blank · Odenthal, DE
• Helmut Fiege · Leverkusen, DE
• Heinz-Gerd Hartges · Leverkusen, DE

Key dates

• Filing date: Oct 11, 1996
• Grant date: Feb 9, 1999
• Expiry date: Oct 11, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/31
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for the preparation of alkyl aryl ethers containing carboxyl groups which are suitable for the preparation of colour film couplers, or derivatives thereof, by reaction of aromatic alcohols with alkyl halides containing carboxyl groups or derivatives thereof and basic alkali metal or alkaline earth metal compounds, characterized in that the reaction is carried out in the melt of the aromatic alcohol.