Compounds which are ethylenically unsaturated in the terminal position, and the use thereof in nonlinear optics

US5103060A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang Brox · Heidelberg, DE
• Dirk Funhoff · Heidelberg, DE
• Ulrike Licht · Mannheim, DE
• Harald Fuchs · Eisenberg (Pfalz), DE
• Wolfgang Schrepp · Heidelberg, DE

Key dates

• Filing date: Aug 23, 1990
• Grant date: Apr 7, 1992
• Expiry date: Aug 23, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The novel compounds of the general formula I ##STR1## where X is straight-chain or branched alkanediyl having from 1 to 20 carbon atoms or PA0 X is straight-chain or branched alkanediyl having from 2 to 20 carbon atoms, whose carbon chain is interrupted by --O--, --S-- and/or --NR--, PA0 R is hydrogen, straight-chain or branched alkyl having from 1 to 6 carbon atoms or cycloalkyl, and PA0 Y is a non-centrosymmetric radical containing an easily polarized conjugated .pi.-electron system and at least one terminal electron-acceptor group, having nonlinear optical properties, are highly suitable as nonlinear optical materials for nonlinear optical arrangements and for the preparation of polymers having nonlinear optical properties. In particular, they can be used to prepare organopolysiloxanes having nonlinear optical properties and containing side groups of the general formula Ia ##STR2## in which the variables are as defined above. These novel organopolysiloxanes having nonlinear optical properties are also highly suitable for the production of Langmuir-Blodgett layers.