Patent ID: 7381350
Filing Date: 2008-06-03
Classification: C09K

Abstract:
1. A compound having one of formulae (1) or (2): wherein R 1 is hydrogen, fluorine, chlorine, cyano, nitro, or alkyl having 1 to 20 carbons; wherein any hydrogen in the alkyl may be replaced by fluorine or chlorine, and wherein any one or two —CH 2 — may be replaced by —O—, —S—, —COO—, —OCO—, —CO—, —CH═CH—, or —C≡C—; R 2 is hydrogen or alkyl having 1 to 8 carbons, wherein any hydrogen in the alkyl may be replaced by fluorine or chlorine; R 3 and R 4 are independently hydrogen, fluorine, chlorine, or alkyl having 1 to 10 carbons, wherein any hydrogen in the alkyl may be replaced by fluorine or chlorine, and wherein any one or two —CH 2 — in the alkyl may be replaced by —O—, —S—, —COO—, —OCO—, —CO—, —CH═CH—, or —C≡C—; A is 1,4-cyclohexylene, 1,4-phenylene, pyridine-2,5-diyl, pyridazine-3,6-diyl, pyrimidine-2,5-diyl, naphthalene-2,6-diyl, or tetrahydronaphthalene-2,6-diyl; wherein any hydrogen in the 1,4-phenylene may be replaced by fluorine or chlorine, and wherein any one or two hydrogens in the 1,4-phenylene may be replaced by cyano, methyl, ethyl, methoxy, hydroxy, formyl, acetoxy, acetyl, trifluoroacetyl, difluoromethyl, or trifluoromethyl; X is a single bond, —(CH 2 ) 2 —, —CH≡CH—, —C≡C—, —CH 2 O—, —OCH 2 —, —CF 2 O—, —OCF 2 —, —COO—, —OCO—, —CONH—, —NHCO—, —(CH 2 ) 4 —, —(CH 2 ) 2 COO—, —OCO(CH 2 ) 2 —, —CH═CH—COO—, or —OCO—CH═CH—; P is alkylene having 1 to 20 carbons, wherein any hydrogen in the alkylene may be replaced by fluorine or chlorine, wherein any —CH 2 — in the alkylene may be replaced by —O—, wherein any one or two —CH 2 — in the alkylene may be replaced by —COO— or —OCO—, and wherein any one —CH 2 — in the alkylene may be replaced by —CH═CH— or —C≡C—; and wherein m and n are independently 0, 1 or 2, and the sum of m and n is 1, 2, 3, or 4.