Silacyclohexane compound, a method of preparing it and a liquid crystal
composition containing it
    3.
    发明授权
    Silacyclohexane compound, a method of preparing it and a liquid crystal composition containing it 失效
    硅环己烷化合物,其制备方法和含有它的液晶组合物

    公开(公告)号:US5578244A

    公开(公告)日:1996-11-26

    申请号:US415858

    申请日:1995-04-03

    摘要: A silacyclohexane compound represented by the following general formula (I) ##STR1## wherein R denotes a linear-chain alkyl group with a carbon number of 1-10, a fluoroalkyl group with a carbon number of 1-10 in which a fluorine atom(s) is substituted for one or two hydrogen atoms, a branched-chain alkyl group with a carbon number of 3-8, an alkoxyalkyl group with a carbon number of 2-7, or an alkenyl group with a carbon number of 2-8. ##STR2## denotes a trans-1-sila-1,4-cyclohexylene or trans-4-sila-1,4-cyclohexylene group whose silicon at position 1 or position 4 has a substitutional group(s) of H, F, Cl or CH.sub.3. L.sub.1 and L.sub.2 independently denote H or F. L.sub.3 and L.sub.4 independently denote H, F or Cl. X denotes a H, CN, F, Cl, CF.sub.3, CF.sub.2 Cl, CHFCl, OCF.sub.3, OCF.sub.2 Cl, OCHFCl, OCHF.sub.2, or a linear-chain alkyl or alkoxy group with a carbon number of 1-10. i, j and k respectively denote 0 or 1, where (i+j+k) is 0 or 1. n denotes 0, 1 or 2.

    摘要翻译: 由以下通式(I)表示的硅环己烷化合物其中R表示碳数为1-10的直链烷基,碳数为1-10的氟代烷基,其中a 氟原子取代一个或两个氢原子,碳数为3-8的支链烷基,碳数为2-7的烷氧基烷基或碳数为 2-8。 表示1位或4位的硅具有H,F,Cl取代基的反式-1-硅烷-1,4-亚环己基或反式-4-硅烷-1,4-亚环己基 或CH3。 L1和L2独立地表示H或F.L3和L4独立地表示H,F或Cl。 X表示H,CN,F,Cl,CF 3,CF 2 Cl,CHFCl,OCF 3,OCF 2 Cl,OCHFCl,OCHF 2或碳数为1-10的直链烷基或烷氧基。 i,j和k分别表示0或1,其中(i + j + k)为0或1.n表示0,1或2。

    Process for preparing silacyclohexane compounds
    7.
    发明授权
    Process for preparing silacyclohexane compounds 失效
    硅环己烷化合物的制备方法

    公开(公告)号:US5560866A

    公开(公告)日:1996-10-01

    申请号:US491141

    申请日:1995-06-16

    CPC分类号: C09K19/406 C07F7/083

    摘要: A process for preparing a silacyclohexane compound of the general formula ##STR1## wherein R and Q are, respectively, defined substituents, which process comprising the steps of converting a compound of the following formula ##STR2## to a halosilacyclohexane of the following formula ##STR3## wherein X is a halogen, reacting the halosilacyclohexane with an alcohol to obtain an alkoxysilacyclohexane of the formula which is equilibrated in steric configuration, and ##STR4## reducing the equilibrated alkoxysilacyclohexane whereby a trans form silacyclohexane compound is predominantly produced.

    摘要翻译: 制备通式为“IMAGE”的硅环己烷化合物的方法,其中R和Q分别为限定的取代基,该方法包括以下步骤:将下式的化合物转化为下式的卤代环己烷:IMA IMA >其中X是卤素,使卤代二环己烷与醇反应,得到在空间结构中平衡的式的烷氧基硅烷环己烷,并且还原平衡的烷氧基硅烷环己烷,由此主要生产反式形式的硅环己烷化合物。

    Silacyclohexane compound, a method of preparing it and a liquid crystal
composition containing it
    10.
    发明授权
    Silacyclohexane compound, a method of preparing it and a liquid crystal composition containing it 失效
    硅环己烷化合物,其制备方法和含有它的液晶组合物

    公开(公告)号:US5679746A

    公开(公告)日:1997-10-21

    申请号:US576619

    申请日:1995-12-21

    摘要: A silacyclohexane compound represented by the following general formula (I): ##STR1## wherein R denotes a mono- or di-fluoroalkyl group with 1-10 carbons: ##STR2## denotes a trans-1-silacyclohexylene or a trans-4-silacyclohexylene group whose silicon at position 1 or position 4 has a substitutional group of H, F, Cl or CH.sub.3 ; X denotes a CN, F, Cl, CF.sub.3, CF.sub.2 Cl, CHFCl, OCF.sub.3, OCHF.sub.2, OCF.sub.2 Cl, OCHFCl, (O).sub.3 CY.sub.1 .dbd.CX.sub.1 X.sub.2 (X.sub.1 and Y.sub.1 denote H, F or Cl, and X.sub.2 denotes F or Cl) (O).sub.3 C.sub.p H.sub.q F.sub.r (p denotes 2, 3 or 4, and q and r are integers which satisfy the equation q+r=2p+1, and s denotes 0 or 1), the aforementioned R, or an alkyl or alkoxy group with 1-5 carbons; Y denotes H or F; and Z denotes H or F; and process of manufacturing same.

    摘要翻译: 由以下通式(I)表示的硅环己烷化合物:其中R表示具有1-10个碳的单 - 或二 - 氟烷基:表示反式-1-硅杂环己烯或反式-4-硅杂环己烯 其位置1或位置4的硅具有H,F,Cl或CH 3的取代基; X表示CN,F,Cl,CF 3,CF 2 Cl,CHFCl,OCF 3,OCHF 2,OCF 2 Cl,OCHFCl,(O)3CY 1 = CX 1 X 2(X 1和Y 1表示H,F或Cl,X2表示F或Cl)(O) 3CpHqFr(p表示2,3或4,q和r是满足方程式q + r = 2p + 1,s表示0或1的整数),上述R 1或具有1-5个碳原子的烷基或烷氧基 碳; Y表示H或F; Z表示H或F; 和制造过程相同。