Process of making substituted benzofurans

US5977112A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Andreas Bathe · Darmstadt, DE
• Bernd Helfert · Ober-Ramstadt, DE
• Henning Bottcher · Darmstadt, DE
• Kurt Schuster · Ober-Ramstadt, DE

Key dates

• Filing date: Oct 29, 1997
• Grant date: Nov 2, 1999
• Expiry date: Oct 29, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/55
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Benzofurans of the formula I ##STR1## and their salts in which R.sup.1, R.sup.2 and X have the meanings indicated in claim 1, are suitable as intermediates in the synthesis of medicaments and show effects on the central nervous system.