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30 条记录 (耗时 0.023 秒)

    Multiring liquid crystal esters
    21.
    发明授权
    Multiring liquid crystal esters 失效
    多种液晶酯

    公开(公告)号：US4526704A

    公开(公告)日：1985-07-02

    申请号：US512846

    申请日：1983-07-11

    申请人： Martin Petrzilka ,  Martin Schadt ,  Alois Villiger

    发明人： Martin Petrzilka ,  Martin Schadt ,  Alois Villiger

    IPC分类号： C07C69/773 ,  C09K19/20 ,  C09K19/30 ,  C09K19/44 ,  C09K3/34 ,  C07C69/78 ,  G02F1/13

    CPC分类号： C09K19/2007 ,  C09K19/3068 ,  C09K19/44

    摘要： Compounds of the formula ##STR1## wherein n is 0 or 1; one of X.sup.1 and X.sup.2 is --COO-- or --OOC-- and the other is a single covalent bond or --CH.sub.2 CH.sub.2 --; X.sup.3 and X.sup.4 individually are a single covalent bond or --CH.sub.2 CH.sub.2 --, with the proviso that at most one of X.sup.1, X.sup.2, X.sup.3 and X.sup.4 is --CH.sub.2 CH.sub.2 --; rings A.sup.1 and A.sup.5 individually are a group of the formula ##STR2## or trans-1,4-cyclohexylene; rings A.sup.2, A.sup.3 and A.sup.4 individually are a group of formula II or, when ring A.sup.2, A.sup.3 or A.sup.4 is not linked with at least one of the other two of these rings by a single covalent bond then such ring also can be trans-1,4-cyclohexylene, with the proviso that at least one of rings A.sup.1 through A.sup.5 is a group of formula II; Y is hydrogen, or when Y is attached to a ring of formula II which is not linked with another ring via a single covalent bond, Y also can be fluorine, chlorine or methyl; and R.sup.1 and R.sup.2 individually are straight-chain alkyl of 1-7 carbon atoms, or when R.sup.1 or R.sup.2 is attached to a ring of formula II such R.sup.1 or R.sup.2 also can be straight-chain alkoxy of 1 to 7 carbon atoms;their manufacture and use for electro-optical and chromatographical purposes and liquid crystalline mixtures containing these compounds are described.

    摘要翻译： 式（Ⅰ）化合物其中n为0或1; X1和X2之一是-COO-或-OOC-，另一个是单个共价键或-CH 2 CH 2 - ; X 3和X 4分别是单个共价键或-CH 2 CH 2 - ，条件是X 1，X 2，X 3和X 4中至多一个是-CH 2 CH 2 - ; 环A1和A5分别是式II或反式-1,4-亚环己基的基团; 环A2，A3和A4分别是式II的基团，或者当环A2，A3或A4不与单个共价键中的至少一个这些环中的至少一个连接时，该环也可以是反式-1 ，4-环己烯基，条件是环A1至A5中的至少一个是式II的基团; Y是氢，或当Y连接到通过单个共价键不与另一个环连接的式II的环时，Y也可以是氟，氯或甲基; R1和R2分别为1-7个碳原子的直链烷基，或当R1或R2连接到式II的环上时，R 1或R 2也可以是1至7个碳原子的直链烷氧基; 描述了其用于电光学和色谱目的的制造和用途以及含有这些化合物的液晶混合物。

    Odorants
    23.
    发明授权
    Odorants 失效
    气味

    公开(公告)号：US5635471A

    公开(公告)日：1997-06-03

    申请号：US398726

    申请日：1995-03-06

    申请人： Georg Frater ,  Urs Muller ,  Martin Petrzilka

    发明人： Georg Frater ,  Urs Muller ,  Martin Petrzilka

    IPC分类号： C07D311/78 ,  A61K8/49 ,  A61Q13/00 ,  C07C33/34 ,  C07D311/94 ,  C11B9/00 ,  A61K7/46

    CPC分类号： C07D311/94 ,  C07C33/34 ,  C11B9/008 ,  C07C2102/08

    摘要： The invention is concerned with the 7R/7S-diastereoisomer mixture of the formula ##STR1## in pure form, essentially free of the corresponding (4R)-isomers. The invention also concerns the 2R/2S-diastereoisomer mixture of the formula ##STR2## in pure form which is useful as an intermediate for producing I. In addition, the invention concerns a process for obtaining I by subjecting II to isochromane ring closure. Odorant compositions containing I and the use of I as an odorant are also described.

    摘要翻译： 本发明涉及纯的形式的基本上不含相应的（4R） - 异构体的式I的7R / 7S-非对映异构体混合物。 本发明还涉及纯形式的2R / 2S-非对映异构体混合物，其可用作生产I的中间体。此外，本发明涉及通过使II进行异苯并二氢吡喃环闭合来获得I的方法。 还描述了含有I的气味组合物和I作为气味剂的用途。

    Organo-selenenyl compound and method for its preparation
    30.
    发明授权
    Organo-selenenyl compound and method for its preparation 失效
    有机硒基化合物及其制备方法

    公开(公告)号：US4247717A

    公开(公告)日：1981-01-27

    申请号：US73329

    申请日：1979-09-07

    申请人： Martin Petrzilka

    发明人： Martin Petrzilka

    IPC分类号： C07C391/02 ,  C07C47/228

    CPC分类号： C07C391/02

    摘要： New organo-selenenyl aldehyde of formula C.sub.6 H.sub.5 -Se-CH.sub.2 -CHO and method for its preparation.The new compound is a useful starting material for the preparation of allylic alcohols, epoxydes or olefines.

    摘要翻译： 式C6H5-Se-CH2-CHO的新有机硒烯醛及其制备方法。 新化合物是制备烯丙基醇，环氧化物或烯烃的有用起始原料。