Patent ID: 6641871
Filing Date: 2003-11-04
Classification: C07C,C07D,C09K

Abstract:
A compound of formula I whereinR11 and R12 are each independently, H, an alkyl group having 1 to 15 carbon atoms which is monosubstituted by CN or CF3 or at least monosubstituted by halogen, in which at least one CH2 group is optionally independently replaced by â€”Oâ€”, â€”Sâ€”, â€”CH&boxH;CHâ€”, â€”COâ€”, â€”COâ€”Oâ€”, â€”Oâ€”COâ€” or â€”Oâ€”COâ€”Oâ€” in such a way that O atoms are not linked directly to one another,Z11, Z12 and Z13 are each independently, â€”CH2â€”CH2â€”, â€”CH&boxH;CHâ€”, â€”Câ‰¡Oâ€”, â€”COOâ€”, â€”OCOâ€”, â€”CH2Oâ€”, â€”OCH2â€”, â€”CF2Oâ€”, â€”OCF2â€”, â€”(CH2)4â€”, â€”CF&boxH;CFâ€”, â€”CH&boxH;CFâ€”, â€”CF&boxH;CHâ€” or a single bond, are each independently,(a) trans-1,4-cyclohexylene, in which, one or two non-adjacent CH2 groups are optionally independently replaced by â€”Oâ€” or â€”Sâ€”, (b) 1,4-cyclohexenylene, (c) 1,4-phenylene, in which, one or two OH groups are optionally replaced by N, or (d) 1,4-bicyclo[2.2.2]octylene, piperidine-1,4-diyl, naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl, whereby in any of rings (a) to (d) at least one hydrogen atom bound to a carbon atom is optionally replaced by a fluorine atom, andn11 and n12 are each 0, 1 or 2, and n11+n12 is 1, 2 or 3, with the provisos that Z12 is not a single bond and/or n12 is 1 or 2.