Organosilylalkylaromatic compounds

US5210247A · kind A · utility

Assignee

• Consortium für elektrochemische Industrie GmbH · DE

Inventors

• Norman Haberle · Munich, DE
• Wolfgang Haas · Germering, DE
• Leonhard Brader · Munich, DE
• Franz-Heinrich Kreuzer · Martinsried, DE

Key dates

• Filing date: Oct 22, 1990
• Grant date: May 11, 1993
• Expiry date: Oct 22, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/55
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to compounds of the formula ##STR1## in which Y represents an organosilicon radical; PA1 R" represents a divalent radical which connects the radical Y to the benzene ring via a chain of at least three atoms; PA1 X represents a radical of the formula --COOH, --CN, --CHO, --NH.sub.2 or --OH, in which it is possible to block the hydroxyl group with a protecting group; PA1 Z represents the same or different substituents in the 2-, 3-, 5- or 6-position to the radical X, preferably hydrogen or halogen atoms; and PA1 p represents a value of 0 to 4; and the use of these and related compounds in the preparation of compounds having liquid-crystalline properties.