Patent ID: 7943061

Claim:
A compound of formula I wherein R 1-4 independently of each other denote H, F, Cl, Br, I, CN, NCS, SF 5 , or straight-chain, branched or cyclic alkyl, aryl or heteroaryl having 1 to 30 C-atoms that is optionally mono- or polysubstituted by F, Cl, Br, I or CN, and in which one or more non-adjacent CH 2 groups are optionally replaced, in each case independently from one another, by —O—, —S—, —NH—, —NR 0 —, —SiR 0 R 00 —, —CO—, —COO—, —OCO—, —OCO—O—, —S—CO—, —CO—S—, —CY 1 ═CY 2 — or —C≡C— in such a manner that O and/or S atoms are not linked directly to one another, or denote -(Z 1 -A 1 ) m -R 5 or P-Sp-, R 5 has one of the meanings of R 1 that is different from -(Z 1 -A 1 ) m -R 5 , P is a polymerisable group, Sp is a spacer group or a single bond, A 1 is in case of multiple occurrence independently of one another an aromatic or alicyclic group, which optionally contains one or more hetero atoms selected from N, O and S, and is optionally mono- or polysubstituted by R 1 , Z 1 in case of multiple occurrence independently of one another denotes —O—, —S—, —CO—, —COO—, —OCO—, —S—CO—, —CO—S—, —O—COO—, —CO—NR 0 —, —NR 0 —CO—, —NR 0 —CO—NR 00 , —NR 0 —CO—O—, —O—CO—NR 0 —, —OCH 2 —, —CH 2 O—, —SCH 2 —, —CH 2 S—, —CF 2 O—, —OCF 2 —, —CF 2 S—, —SCF 2 —, —CH 2 CH 2 —, —(CH 2 ) 4 —, —CF 2 CH 2 —, —CH 2 CF 2 —, —CF 2 CF 2 —, —CH═N—, —N═CH—, —N═N—, —CH═CR 0 —, —CY 1 ═CY 2 —, —C≡C—, —CH═CH—COO—, —OCO—CH═CH— or a single bond, R 0 and R 00 independently of each other denote H or alkyl with 1 to 12 C-atoms, Y 1 and Y 2 independently of each other denote H, F, Cl or CN, m is 0, 1, 2, 3 or 4, wherein the binaphthyl group is optionally substituted in further positions by one or more identical or different groups R 1 , and wherein the compound comprises at least one substituent R 1-4 that is different from H.