Liquid crystalline piperidine derivatives

US4537698A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Wolfgang Sucrow · Paderborn, DE
• Wolfgang Schatull · Paderborn, DE
• Peter Fuss · Mühltal, DE

Key dates

• Filing date: May 31, 1983
• Grant date: Aug 27, 1985
• Expiry date: May 31, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/3483
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

New piperidine derivatives ##STR1## in which R.sup.1 and R.sup.2 each independently is alkyl or alkoxy each of 1 to 10 C atoms, --Y--Z, F, Cl, Br or CN, and the radical R.sup.1 can also be H, PA1 Y is --CO--O--, --O--CO or a single bond, PA1 Z is --Q--R.sup.3 or alkyl having 1-10 C atoms, PA1 Q is 1,4-phenylene or 1,4-cyclohexylene, PA1 R.sup.3 is alkyl having 1-10 C atoms, F or CN, and PA1 A is 1,4-cyclohexylene or 1,3-dioxane-2,5-diyl, and their acid addition salts, can be used as components of dielectrics for electro-optical display elements.