Process for the preparation of phenylketones etherified in the 4-position

US4960943A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Artur Botta · Krefeld, DE
• Hans-Josef Buysch · Krefeld, DE
• Lothar Puppe · Burscheid, DE
• Dieter Arlt · Cologne, DE

Key dates

• Filing date: Mar 2, 1989
• Grant date: Oct 2, 1990
• Expiry date: Mar 2, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/46
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Phenylketones etherified in the 4-position can be prepared by reaction of aromatic ethers which have a free 4-position with acylating agents, the acylation being carried out in the presence of zeolite catalysts having pore sizes of at least 5 .ANG..