Nitrogen-containing heterocycles

US4834904A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Joachim Krause · Dieburg, DE
• Rudolf Eidenschink · Mainz, DE
• Klaus Bofinger · Mühltal, DE
• Bernhard Scheuble · Alsbach, DE
• Thomas Geelhaar · Mainz, DE

Key dates

• Filing date: Dec 24, 1986
• Grant date: May 30, 1989
• Expiry date: Dec 24, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/3441
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Optically active nitrogen-containing heterocycles of the formula I according to claim 1 are suitable as components for ferroelectric liquid crystalline materials.