Fluoroalkylethnyl- and difluoroalkylethynylbenzenes, and their use in liquid-crystal mixtures

US5820785A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Hubert Schlosser · Hofheim, DE
• Dietmar Jungbauer · Weiterstadt, DE

Key dates

• Filing date: Nov 18, 1996
• Grant date: Oct 13, 1998
• Expiry date: Nov 18, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/0444
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Disclosed are derivatives of fluoroalkylethynyl- and difluoroalkylethynylbenzenes of the formula (I) herein. These compounds exhibit useful properties as liquid crystal compounds and are useful in nematic liquid crystal mixtures.