Patent ID: 6344154
Filing Date: 2002-02-05
Classification: C07C,C07D,C08F,C09K

Abstract:
A reactive liquid crystal compound of formula I whereinP is CH2&boxH;CWâ€”COOâ€”, WCH&boxH;CHâ€”Oâ€”, Sp is a spacer group having 1 to 20 C atoms, X is â€”Oâ€”, â€”Sâ€”, â€”COâ€”, â€”COOâ€”, â€”OCOâ€”, â€”Oâ€”COOâ€”, â€”Sâ€”COâ€”, â€”COâ€”Sâ€” or a single bond, n is 1, A1 and A2 are each independently 1,4-phenylene in which, in addition, one or more CH groups may be replaced by N, 1,4-cyclohexenylene or 1,4-cyclohexylene in which, in addition, one or two non-adjacent CH2 groups may be replaced by O and/or S, or naphthalene 2,6-diyl these rings optionally being substituted with halogen, cyano or nitro groups or with one or more alkyl, alkoxy or acyl groups with 1 to 7 C atoms wherein one or more H atoms may be substituted by F or Cl, Z is â€”OCOâ€”, â€”COOâ€”, â€”CH2CH2â€”, â€”CH&boxH;CHâ€”, â€”Câ‰¡Câ€”, â€”CH2Oâ€”, â€”OCHâ€”, or a single bond, m is 0 or 1, R is an alkyl radical with up to 20 C atoms which may be unsubstituted, mono- or polysubstituted by halogen or CN, one or more CH2 groups optionally being replaced by â€”Oâ€”, â€”Sâ€”, â€”NHâ€”, N(CH3)â€”, â€”COâ€”, â€”OCOâ€”, â€”COOâ€”, â€”Sâ€”COâ€”, â€”COâ€”Sâ€”, â€”Oâ€”COOâ€”, in such a manner that oxygen atoms are not directly linked to one another, or alternatively R is halogen, cyano or is Pâ€”(Spâ€”X)nâ€²â€”, and nâ€² is 0 or 1, with the proviso that m is 1 and/or R is Pâ€”(Spâ€”X)n-.