Compounds having non-linear optical properties
AssigneeSandoz Ltd.
InventorsMarkus Ahlheim, Friedrich Lehr
Life of this patent
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Abstract
The invention relates to monomeric or polymeric organic compounds having non-linear optical properties, to their production and to their use as electrooptical, photorefractive or holographic devices, especially as modulators, switches, amplifiers, wave guides, sensors to work as sequence transformation especially frequency doubling. These compounds are compounds of Formula I: ##STR1## in which R.sub.1 is a group for formula a ##STR2## or R.sub.1 is a group of formula b ##STR3## or R.sub.1 is an NO.sub.2 where R.sub.1`-R.sub.11 are organic radicals.
Claims9
A compound, free of any water soluble groups of formula I ##STR20## in which R.sub.1 is a group of formula a ##STR21## R.sub.2, when R.sub.1 is a group of formula a), is selected from hydrogen and C.sub.1-4 alkoxy;
- R.sub.3, when R.sub.1 is a group of formula a) or formula b), is selected from hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxyl and C.sub.1-4 alkylcarbonylamino and
- R.sub.4 is a C.sub.2-6 alkylene group;
- R.sub.5, when R.sub.1 is a group of formula a) or nitro, is selected from benzyl and phenylethyl, the phenyl group of benzyl or phenylethyl having optionally 1 or 2 substituents selected from C.sub.1-4 alkyl, C.sub.1-4 alkoxy and halogen, and
- R.sub.6 is hydrogen, halogen or cyano;
- R.sub.7 is nitro, cyano or --C(R.sub.14).dbd.C(R.sub.15)(R.sub.16);
- R.sub.8 is hydrogen, halogen, cyano or nitro;
- R.sub.9 is hydrogen or when R.sub.6 is hydrogen and R.sub.8 is nitro, R.sub.9 is hydrogen or SCN;
- R.sub.14 is hydrogen or cyano;
- and R.sub.15 and R.sub.16 independently are cyano or C.sub.1-10 alkoxycarbonyl.
Dependencies are inferred from the claim text.