Triphenylene derivatives

US4631143A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Klaus Praefcke · Berlin, DE
• Bernd Kohne · Berlin, DE
• Wadi Poules · Berlin, DE
• Eike Poetsch · Mühltal, DE

Key dates

• Filing date: Dec 21, 1984
• Grant date: Dec 23, 1986
• Expiry date: Dec 21, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/328
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Triphenylene derivatives of the formula I ##STR1## wherein X.sup.1 to X.sup.6 are each, independently of one another, --SH, --SR, --SOR, --SO.sub.2 R or --S--COR, and each R is an alkyl group with up to 20 C atoms, it being possible for one or two CH.sub.2 groups to be replaced by O atoms and/or by unsubstituted or substituted vinylene or vinylidene groups, may be used as components of discotic liquid-crystalline phases.