利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

30 条记录 (耗时 0.012 秒)

    UNSATURATED ETHERS AS PERFUMING INGREDIENTS
    8.
    发明授权
    UNSATURATED ETHERS AS PERFUMING INGREDIENTS 有权
    不饱和醚作为香料物质

    公开(公告)号：EP1784374B1

    公开(公告)日：2008-03-05

    申请号：EP05774460.9

    申请日：2005-08-22

    申请人： FIRMENICH SA

    发明人： GAUDIN, Jean-Marc

    IPC分类号： C07C43/14 ,  A61K8/33 ,  C11B9/00

    CPC分类号： C07C43/14 ,  C11B9/0015

    摘要： The present invention concerns a compound of formula (I), wherein the wavy line indicates that the double bond in position 3 is in a configuration E or Z or a mixture thereof, and R is a C 2 -C 6 alkyl or alkenyl group, which is a useful perfuming ingredient capable of imparting odor notes of the violet leaves type as well as a green/fruity aspect.

    HYDROXY-PROTECTING REAGENT AND METHOD OF PROTECTING HYDROXY WITH THE SAME
    9.
    发明公开
    HYDROXY-PROTECTING REAGENT AND METHOD OF PROTECTING HYDROXY WITH THE SAME 审中-公开
    试剂羟基和程序羟基的同时申请保护的保护

    公开(公告)号：EP1652832A1

    公开(公告)日：2006-05-03

    申请号：EP04746684.2

    申请日：2004-06-23

    申请人： Sumitomo Chemical Company, Limited

    发明人： IKEMOTO, Tetsuya, Sumitomo Chemical Company, Ltd. ,  WATANABE, Yosuke, Sumitomo Chemical Company, Ltd.

    IPC分类号： C07B51/00 ,  C07C41/14 ,  C07C41/24 ,  C07C43/17 ,  C07C43/12 ,  C07C43/164 ,  C07C67/31 ,  C07C69/708 ,  C07C43/14 ,  C07D307/32

    CPC分类号： C07B41/04 ,  C07D307/32 ,  Y02P20/55

    摘要： The present invention relates to a method of protecting a hydroxyl group, which includes reacting a hydroxyl group-containing compound with a compound represented by the formula (I) :

    wherein R is a phenyl group optionally having substituent(s), an alkyl group optionally having substituent(s) or a benzyl group optionally having substituent(s), and X is a halogen atom, in the presence of an acid catalyst to substitute the hydrogen atom of the hydroxyl group of the hydroxyl group-containing compound with a protecting group represented by the formula (II):

    wherein R is as defined above. The present invention provides a method capable of introducing an acetal type protecting group into a hydroxyl group under mild conditions, and a protecting reagent therefor and a method of producing the protecting reagent.

    摘要翻译： 本发明涉及保护羟基基团，其包括使与式（I）表示的化合物的含羟基化合物的方法：worin R为任选具有取代基（一个或多个）的苯基可任选地烷基基团 具有取代基（一个或多个）或任选具有取代基（一个或多个）苄基，和X是卤原子，在酸催化剂的存在来代替羟基的含羟基的化合物的氢原子用保护基 由式（II）表示：worin R是如上所定义。 本发明提供能够引入到缩醛型保护基团引入羟基基团在温和条件下的方法，以及保护试剂为此及其制造保护试剂的方法。

    ALKENYL COMPOUNDS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES
    10.
    发明公开
    ALKENYL COMPOUNDS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES 失效
    ALKENYLZUSAMMENSETZUNGEN，FLÜSSIGKRISTALLZUSAMMENSETZUNGENUNDFLÜSSIGKRISTALLANZEIGEVORRICHTUNGEN

    公开(公告)号：EP0893421A1

    公开(公告)日：1999-01-27

    申请号：EP97908522.2

    申请日：1997-03-27

    申请人： CHISSO CORPORATION

    发明人： KONDO, Tomoyuki ,  MATSUI, Shuichi ,  MIYAZAWA, Kazutoshi ,  SEKIGUCHI, Yasuko ,  NAKAGAWA, Etsuo

    IPC分类号： C07C13/28 ,  C07C15/50 ,  C07C22/00 ,  C07C25/24 ,  C07C43/14 ,  C07C43/188 ,  C07C43/215 ,  C07C69/75 ,  C07C69/76 ,  C07C321/10 ,  C07D213/04

    CPC分类号： C07C43/225 ,  C07C43/176 ,  C07C43/188 ,  C07C69/753 ,  C07C69/76 ,  C09K19/04 ,  C09K19/16 ,  C09K19/3001 ,  C09K19/3048 ,  C09K19/3059 ,  C09K19/3402 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  C09K2019/3422 ,  Y10T428/10

    摘要： Liquid crystalline compounds having a wide temperature range of liquid crystal phase, low viscosity, chemical stability, and excellent mutual solubility with other liquid crystal materials; liquid crystal compositions comprising the liquid crystalline compound; and liquid crystal display devices comprising the liquid crystal composition are provided;
       the liquid crystalline compound is expressed by the general formula (1)

            Ra-A 1 -Z 1 -A 2 -Z 2 -A 3 -Z 3 -A 4 -Rb     (1)

    wherein Ra represents an alkenyl group having 2 to 20 carbon atoms or an alkyl group having 1 to 20 carbon atoms any methylene group (-CH 2 -) in the alkenylene or alkyl group may be replaced by -O-, -S-, -CO-, -CH=CH-, or -C≡C-, but in no case -O- and/or -S- continues, and any hydrogen atom in Ra may be replaced by a halogen atom; Rb represents Ra, a halogen atom, or cyano group provided that at least one of Ra and Rb represents a group having double bond; A 1 , A 2 , A 3 , and A 4 independently represent trans-1,4-cyclohexylene group, 1,4-phenylene group any hydrogen atom on the ring may be replaced by fluorine atom or cyano group, cyclohexenediyl group, pyridine-2,5-diyl group, pyrimidine-2,5-diyl group, or 1,3-dioxane-2,5-diyl group; and Z 1 , Z 2 , and Z 3 independently represent an alkenylene group having 2 to 4 carbon atoms, -(CH 2 ) 2 -, -COO-, -OCO-, -C≡C-, -CH 2 O-, -OCH 2 -, or single bond any hydrogen atom in the groups may be replaced by a halogen atom provided that at least one of Z 1 , Z 2 , and Z 3 represents an alkenylene group having 2 to 4 carbon atoms.

    摘要翻译： 具有液晶相温度范围宽，粘度低，化学稳定性好，与其他液晶材料互溶性好的液晶化合物; 包含液晶化合物的液晶组合物; 并且提供包括液晶组合物的液晶显示装置; 液晶化合物由通式（1）Ra-A1-Z1-A2-Z2-A3-Z3-A4-Rb表示，其中Ra表示碳原子数2〜20的烯基或具有1〜20的烷基 碳原子亚烯基或烷基中的任何亚甲基（-CH 2 - ）可以被-O - ， - S - ， - CO - ， - CH = CH-或-C-取代的C-取代，但是在任何情况下 - O-和/或-S-继续，Ra中的任何氢原子可被卤素原子取代; Rb表示Ra，卤素原子或氰基，Ra和Rb中的至少一个表示具有双键的基团; A1，A2，A3和A4独立地表示反式-1,4-亚环己基，1,4-亚苯基，环上的任何氢原子可以被氟原子或氰基取代，环己烯二基，吡啶-2,5- 二基，嘧啶-2,5-二基或1,3-二恶烷-2,5-二基; 并且Z 1，Z 2和Z 3独立地表示具有2至4个碳原子的亚烯基， - （CH 2）2 - ， - COO - ， - OCO - ， - C≡N- 键中的任何氢原子可以被卤素原子替代，条件是Z1，Z2和Z3中的至少一个表示具有2至4个碳原子的亚烯基。