Patent ID: 7575785

Claim:
A cyclopenta[a]naphthalene compound of formula I, II, Ill, IV or V 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 in each case be replaced once or twice, independently of one another, by —O— or —S— in such a way that heteroatoms are not linked directly, and which all may be monosubstituted or polysubstituted by halogen; 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 —, —CF 2 —CH 2 —, —CH 2 —CF 2 —, —CHF—CHF—, —C(O)O—, —OC(O)—, —CH 2 O—, —OCH 2 —, —CF═CH—, —CH═CF—, —CF═CF—, —CH═CH—or —C≡C—; 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 —CN or —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 linked directly, halogen, —CN, —SCN, —NCS, —SF 5 , —CF 3 , —OCF 3 , —OCHF 2 or —OCH 2 F; X 1 , X 1a , X 1b , X 2 and X 3 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 linked directly, halogen, —CN, —SF 5 , —SCN, —NCS, —CF 3 , —OCF 3 , —OCHF 2 or —OCH 2 F; E 1 and E 2 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, monosubstituted by —CN or —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 linked directly, halogen, —CN, —SCN, —NCS, —SF 5 , —CF 3 , —OCF 3 , —OCHF 2 , —OCH 2 F or —(—Z—A—) n —R; and n is 1, 2 or 3; where in the formula I, ring B does not stand for the formula c if X 1 , X 2 and X 3 are simultaneously hydrogen.