Liquid crystal naphtalene compounds, represented by the following formula (1) are disclosed.
R-Z-A-NAP-Z′-R′ (1)
In the formula (1), R is an alkyl group containing 1 to 18 carbon atoms; R′ is an alkyl group containing 1 to 21 carbon atoms; NAP represents 2,6-naphthylene group; A, Z and Z′ are as follows: 1) A is Pyr> and (a) Z is - or # and Z′ is O, or (b) Z is - and Z′ is COO; 2) if A is Pym>, (a) Z is - and Z′ is O, or (b) Z is O and Z′ is -, O or #; 3) A is FPhF and (a) Z is - or O and Z′ is -, O or COO, (b) Z is OCO and Z′ is - or O, or (c) Z is # and Z′ is O; 4) A is PhF and (a) Z is - or # and Z′ is O, (b) Z is O and Z′ is -, or (c) Z is - and Z′ is COO; 5) A is FPh and (a) Z is O and Z′ is-, (b) Z is -, O, # or OCO and Z′ is O, or (c) Z is O and Z′ is COO; 6) A is
液晶萘化合物的化学式如下所示:R-Z-A-NAP-Z′-R′。在这个化学式中,R是含有1到18个碳原子的烷基基团;R′是含有1到21个碳原子的烷基基团;NAP代表2,6-萘基团;A、Z和Z′的具体定义如下:
1)如果A是Pyr,(a) Z是-或#,Z′是O;或者(b) Z是-,Z′是COO;
2)如果A是Pym,(a) Z是-,Z′是O;或者(b) Z是O,Z′是-、O或#;
3)如果A是FPhF,(a) Z是-或O,Z′是-、O或COO;(b) Z是OCO,Z′是-或O;或者(c) Z是#,Z′是O;
4)如果A是PhF,(a) Z是-或#,Z′是O;(b) Z是O,Z′是-;或者(c) Z是-,Z′是COO;
5)如果A是FPh,(a) Z是O,Z′是-;(b) Z是-、O、#或OCO,Z′是O;或者(c) Z是O,Z′是COO;
6)如果A是
Dioxane derivatives
申请人:Central Research Laboratories Limited
公开号:US05683623A1
公开(公告)日:1997-11-04
Dioxane derivatives for use as components in liquid crystal devices (LCDs) of general formula (A), wherein X is CH or B; R.sup.1, R.sup.2 are each A.sup.1, OA.sup.1, OCOA.sup.2, or COOA.sup.2 ; A.sup.1 is a straight or branched chain alkyl group containing from 1 to 20 carbon atoms and may be substituted with one or more F or CN. A.sup.2 is a straight or branched chain alkyl group containing from 1 to 20 carbon atoms and may be substituted with one or more F or CN and if straight may be unsubstituted. Y.sup.1, Y.sup.2, Y.sup.3 may each be (CH.sub.2).sub.p, (CH.sub.2).sub.p COO or OCO(CH.sub.2).sub.p ; p is from 0 to 10, n is 0 or 1, m is 0 or 1, either or both of Z.sub.1 and Z.sub.2 are F and, when not F, are H; Y.sup.4 is a covalent bond or, when n is 0, may be (a) LCDs, containing the devices exhibit very fast switching speed, bi-stable characteristics, enhanced greyscale and storage capabilities and a wide viewing angle.
二氧六环衍生物可用作通式(A)中的液晶装置(LCD)组分,其中X为CH或B;R.sup.1,R.sup.2分别为A.sup.1,OA.sup.1,OCOA.sup.2或COOA.sup.2;A.sup.1为含1至20个碳原子的直链或支链烷基,并可被一个或多个F或CN取代。A.sup.2为含1至20个碳原子的直链或支链烷基,并可被一个或多个F或CN取代,如果是直链则可以未被取代。Y.sup.1,Y.sup.2,Y.sup.3可以分别为(CH.sub.2).sub.p,(CH.sub.2).sub.p COO或OCO(CH.sub.2).sub.p;p为0至10,n为0或1,m为0或1,Z.sub.1和Z.sub.2中的任意一个或两个为F,当不为F时为H;Y.sup.4为共价键,或当n为0时,可以为(a)LCD,包含这些装置的液晶显示器具有非常快的开关速度、双稳态特性、增强的灰度和存储能力以及广阔的视角。
NOVEL DICARBOXYLIC ACID DERIVATIVES
申请人:Capet Marc
公开号:US20090264469A1
公开(公告)日:2009-10-22
The present patent application concerns new compounds of formula (I): displaying agonistic activity at sphingosine-1-phosphate (S1P) receptors, their process of preparation and their use as immunosuppressive agents.
本专利申请涉及公式(I)的新化合物:在鞘氨醇-1-磷酸(S1P)受体上表现出激动活性,它们的制备过程以及它们作为免疫抑制剂的用途。
DIOXANE DERIVATIVES
申请人:CENTRAL RESEARCH LABORATORIES LIMITED
公开号:EP0662114A1
公开(公告)日:1995-07-12
US5683623A
申请人:——
公开号:US5683623A
公开(公告)日:1997-11-04
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