Patent ID: 7612243

Claim:
Cyclopenta[b]naphthalene derivatives of formula (VII) to (XI) wherein Z is in each case, independently of one another, a single bond, a double bond, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 —, —CF 2 CF 2 —, —C(O)O—, —OC(O)—, —CH 2 O—, —OCH 2 —, —CF═CH—, —CH═CF—, —CF═CF—, —CH═CH— or —C≡C—, A is in each case, independently of one another, 1,4-phenylene, in which ═CH— may be replaced once or twice by ═N—, and which may be monosubstituted to tetrasubstituted, independently of one another, by halogen (—F, —Cl, —Br, —I), —CN, —CH 3 , —CH 2 F, —CHF 2 , —CF 3 , —OCH 3 , —OCH 2 F, —OCHF 2 or —OCF 3 , 1,4-cyclohexylene, 1,4-cyclohexenylene or 1,4-cyclohexadienylene, in which —CH 2 — may be replaced once or twice, independently of one another, by —O— or —S— in such a way that heteroatoms are not directly adjacent, and which may be monosubstituted or polysubstituted by halogen, or is 1,3-cyclobutylene or bicyclo[2.2.2]octane, R is hydrogen, an alkyl, alkoxy, alkenyl or alkynyl radical having from 1 to 15 or 2 to 15 carbon atoms respectively which is unsubstituted, monosubstituted by —CF 3 or at least monosubstituted by halogen, where, in addition, one or more CH 2 groups in these radicals may each, independently of one another, be replaced by —O—, —S—, —CO—, —COO—, —OCO— or —OCO—O— in such a way that heteroatoms are not directly adjacent, halogen, —CN, —SCN, —NCS, —SF 5 , —CF 3 , —OCF 3 , —OCHF 2 or —OCH 2 F, n is 0, 1, 2 or 3, and L 1 -L 8 are each, independently of one another, hydrogen, an alkyl, alkoxy, alkenyl or alkynyl radical having from 1 to 15 or 2 to 15 carbon atoms respectively which is unsubstituted or at least monosubstituted by halogen, where, in addition, one or more CH 2 groups in these radicals may each, independently of one another, be replaced by —O—, —S—, —CO—, —COO—, —OCO— or —OCO—O— in such a way that heteroatoms are not directly adjacent, halogen, —CN, —SCN, —NCS, —SF 5 , —CF 3 , —OCF 3 , —OCHF 2 , —OCH 2 F or -(Z-A-) n —R.