Difluorobenzonitrile derivatives

US5211878A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Volker Reiffenrath · Roßdorf, DE
• Joachim Krause · Dieburg, DE
• Andreas Wachtler · Griesheim, DE
• Georg Weber · Langen (Hessen), DE
• Ulrich Finkenzeller · Plankstadt, DE

Key dates

• Filing date: May 14, 1991
• Grant date: May 18, 1993
• Expiry date: May 14, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Derivatives of 2,3-difluorobenzonitrile of the formula I ##STR1## are useful components of liquid crystalline phases.