发明授权
- 专利标题: Pyrimidine derivatives
- 专利标题(中): 嘧啶衍生物
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申请号: US832120申请日: 1986-02-24
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公开(公告)号: US4776973A公开(公告)日: 1988-10-11
- 发明人: Klaus Bofinger , Michael Romer , Bernhard Scheuble , Georg Weber
- 申请人: Klaus Bofinger , Michael Romer , Bernhard Scheuble , Georg Weber
- 申请人地址: DEX Darmstadt
- 专利权人: Merck Patent Gesellschaft mit Beschrankter Haftung
- 当前专利权人: Merck Patent Gesellschaft mit Beschrankter Haftung
- 当前专利权人地址: DEX Darmstadt
- 优先权: DEX3506446 19850223
- 主分类号: G02F1/13
- IPC分类号: G02F1/13 ; C07D239/26 ; C09K19/34 ; C09K19/44 ; C07D239/04
摘要:
Pyrimidine derivatives of the formula IR.sup.1 --Pry--A.sup.1 --Z.sup.1 --A.sup.2 -[Z.sup.2 --A.sup.3 ].sub.m --R.sup.2 Iin whichR.sup.1 and R.sup.2 each are an alkyl group having 1 to 12 C atoms, in which one or two non-adjacent CH.sub.2 groups can also be replaced by --O--, --CO--, --O--CO--, --CO--O-- or --CH.dbd.CH--, and one of the radicals R.sup.1 and R.sup.2 are H, F, Cl, Br or CN,Pyr is pyrimidine-2,5-diyl,A.sup.1 and A.sup.3 each are 1,4-cyclohexylene, unsubstituted 1,4-phenylene or 1,4-phenylene which is substituted by one or two F and/or Cl atoms and/or CH.sub.3 and /or CN groups,A.sup.2 is 1,4-phenylene which is unsubstituted or substituted by one or two F and/or Cl atoms and/or CH.sub.3 and/or CN groups,Z.sup.1 is --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--, or --OCH.sub.2 --Z.sup.2 is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--, --O--CH.sub.2 -- or a single bond, andm is 0 or 1,are suitable for preparing liquid crystal phases having steep electro-optical characteristic curves.
公开/授权文献
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