Phenylcyclohexanes, and a liquid-crystalline medium

US5230829A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Ekkehard Bartmann · Langen (Hessen), DE
• Joachim Krause · Dieburg, DE
• Eike Poetsch · Mühltal, DE
• Reinhard Hittich · Seeheim-Jugenheim, DE
• Bernhard Rieger · Langenau, DE
• Ulrich Finkenzeller · Plankstadt, DE

Key dates

• Filing date: Jun 24, 1991
• Grant date: Jul 27, 1993
• Expiry date: Jun 24, 2011

Classification

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

Abstract

The invention relates to novel phenylcyclohexanes of the formula I ##STR1## in which Q is CH--Hal or C--Hal.sub.2 where Hal is F or Cl, PA1 n is 1 to 5, PA1 r is 0 to 6, PA1 A is a single bond, ##STR2## X is F, Cl, --CF.sub.3, --OCF.sub.3 or --OCHF.sub.2, and Y and Z are each, independently of one another, H or F.