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    • 35. 发明申请
    • LIQUID CRYSTAL COMPOUND
    • 液晶化合物
    • WO00031211A1
    • 2000-06-02
    • PCT/IB1999/001831
    • 1999-11-15
    • G02F1/141C07D405/10C09K19/34G02F1/13
    • C09K19/3402C09K19/3444C09K19/3466C09K2019/3422
    • A compound of formula (I), in which R represents a chiral or non-chiral, branched or straight chain C1-20 alkyl or C1-20 alkenyl, which may be optionally substituted by one or more halogen atoms and in which one or more non-adjacent -CH2- groups may be optionally replaced by -CH=CH-, -O-, -CO-, -COO-, -OOC-, -O-OC-O- or -S-; R represents a chiral or non-chiral, branched or straight chain C1-20 alkoxy, C1-20 alkenyloxy, C1-20 alkylcarbonyloxy (alkyl-COO-) or C1-20 alkenyl carbonyloxy (alkenyl-COO-), which may be optionally substituted by one or more halogen atoms and in which one or more non-adjacent -CH2- groups may be optionally replaced by -CH=CH-, -O-, -CO-, -COO-, -OOC-, -O-OC-O- or -S-;MG represents a group of formula (Ia):-(A-Z )n-(B-Z )m, in which A and B are each independently a 1,4-phenylene or 1,4-cyclohexylene group, which may each be optionally substituted by halogen, cyano or nitro or a group of formula R and in which one or two non-adjacent -CH- or -CH2- groups may be optionally replaced by nitrogen or oxygen respectively; Z , Z , Z independently represent a single bond, -COO- or -OOC-, -CH2CH2-, -CH=CH-, -CC-, -OCH2- or -CH2O-;m and n are each independently 0 or 1; and MG represents a 1,4 phenylene group which may be optionally substituted by halogen, cyano or nitro or a group of formula R and in which one or two non-adjacent -CH- groups is replaced by nitrogen is provided. The compound is useful in the preparation of ferroelectric liquid crystal devices.
    • 式(I)化合物,其中R 1表示可任选被一个或多个卤素原子取代的手性或非手性,支链或直链C 1-20烷基或C 1-20烯基,其中 一个或多个不相邻的-CH2-基团可以任选被-CH = CH - , - O - , - CO - , - COO - , - OOC-, - O-OC-O-或-S-取代; R 2表示手性或非手性,支链或直链C 1-20烷氧基,C 1-20链烯氧基,C 1-20烷基羰氧基(烷基-COO-)或C 1-20烯基羰基氧基(链烯基-COO-),其中 可以任选地被一个或多个卤素原子取代,并且其中一个或多个不相邻的-CH 2 - 基团可以任选被-CH = CH - , - O - , - CO - , - COO - , - OOC-, -O-OC-O-或-S-; MG 1表示式(Ia)的基团: - (AZ 2)n-(BZ 3)m,其中A和B各自独立地 1,4-亚苯基或1,4-亚环己基,其各自可以任选被卤素,氰基或硝基或式R 1基团取代,并且其中一个或两个不相邻的-CH-或-CH 2 - 基团可以分别被氮或氧替代; Z 1,Z 2,Z 3独立地表示单键,-COO-或-OOC - , - CH 2 CH 2 - , - CH = CH - , - C≡C - , - OCH 2 - 或-CH 2 O- m和n各自独立地为0或1; 和MG 2表示可以任选被卤素,氰基或硝基或式R 1基团取代的1,4-亚苯基,其中一个或两个不相邻的-CH-基团被氮代替, 提供。 该化合物可用于制备铁电液晶装置。