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266 条记录 (耗时 0.017 秒)

    Process for producing m-phenoxybenzyl alcohol
    23.
    发明公开
    Process for producing m-phenoxybenzyl alcohol 失效
    Verfahren zur Herstellung von m-Phenoxybenzylalkohol。

    公开(公告)号：EP0394042A1

    公开(公告)日：1990-10-24

    申请号：EP90304218.2

    申请日：1990-04-19

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Oi, Ryu ,  Shimakawa, Chitoshi ,  Takenaka, Shinji

    IPC分类号： C07C43/295 ,  C07C41/16

    CPC分类号： C07C41/16 ,  C07C43/295

    摘要： A process for producing m-phenoxybenzyl alcohol by reacting chlorobenzene with m-hydroxybenzyl alcohol in the presence of a copper catalyst and a base, the process being characterized by using an alkylene glycol as a reaction solvent.

    摘要翻译： 一种在铜催化剂和碱存在下使氯苯与间羟基苄醇反应生产间苯氧基苄醇的方法，该方法的特征在于使用亚烷基二醇作为反应溶剂。

    Insecticidal ethers
    27.
    发明公开
    Insecticidal ethers 失效
    杀虫剂

    公开(公告)号：EP0276558A3

    公开(公告)日：1988-10-19

    申请号：EP87311027

    申请日：1987-12-15

    申请人： IMPERIAL CHEMICAL INDUSTRIES PLC

    发明人： Bushell, Michael John ,  Carr, Robin Arthur Ellis

    IPC分类号： C07C43/29 ,  C07C43/295 ,  C07C43/23 ,  C07C49/84 ,  C07C121/75 ,  C07D303/22 ,  C07C39/27 ,  C07C43/225 ,  A01N31/14 ,  A01N37/34

    CPC分类号： C07D307/42 ,  A01N31/14 ,  A01N37/38 ,  C07C39/27 ,  C07C43/225 ,  C07C43/23 ,  C07C43/29 ,  C07C43/295 ,  C07C45/004 ,  C07C49/84 ,  C07C255/00 ,  C07D303/08

    摘要： The invention provides insecticidal and acaricidal compounds of formula (I) :
    wherein X is selected from hydrogen, halo, hydroxy, alkoxy and acyloxy, Z represents a fluoroalkyl group of one or two carbon atoms, Y represents a substituted aryl group where each substituent is selected from halo, alkyl of up to six carbon atoms, aryl, aralkyl of up to four carbon atoms in the alkyl moiety, aryloxy and arylamino, and either (i) R represents hydrogen, and W, W 2 and W 3 are independently selected from halo, alkyl of up to six carbon atoms, alkoxy of up to six carbon atoms, alkoxyalkyl of up to a total of six carbon atoms, haloalkyl of up to six carbon atoms, and haloalkoxy of up to six carbon atoms, or (ii) R is selected from methyl, trifluoromethyl, cyano and ethynyl, and W', W 2 and W 3 are independently selected from hydrogen, halo, alkyl of up to six carbon atoms, alkoxy of up to six carbon atoms, alkoxyalkyl of up to a total of six carbon atoms, haloalkyl of up to six carbon atoms, and haloalkoxy of up to six carbon atoms. The invention also provides processes and intermediates for the preparation of the compounds of formula (I), compositions comprising them and methods of combating and controlling insect and acarine pests therewith.

    Polycarbonates
    29.
    发明公开
    Polycarbonates 失效
    聚碳酸酯。

    公开(公告)号：EP0249963A2

    公开(公告)日：1987-12-23

    申请号：EP87108700.3

    申请日：1987-06-16

    申请人： IDEMITSU KOSAN COMPANY LIMITED

    发明人： Shigematsu, Kazuyoshi ,  Nakagawa, Takashi ,  Sakamoto, Shuji

    IPC分类号： C08G64/04

    CPC分类号： C07C317/00 ,  C07C39/16 ,  C07C43/23 ,  C07C43/295 ,  C08G64/06

    摘要： A polycarbonate polymer containing repeating units epresented by the following general formula
    wherein: X is selected from single bond,-O-,-S-,-SO 2 -,
    wherein:

    R 1 and R 2 are each independently selected from hydrogen atom; alkyl radical of 1 to 6 carbon atoms; cycloalkyl radical of 5 to 6 carbon atoms;
    wherein
    is an integer having a value of from 0 to 3; phenyl radicals substituted at para position by a substituent seleced from alkoxy radicals of 1 to 5 carbon atoms, phenoxy radicals, or halogen radicals; or p-biphenylyl radical, -(CH 2 )- q wherein q is an integer having a value of from 2 to 10; or
    wherein r is an integer having a value of from 4 to 8, and having a reduced viscosity [ηsp/c] of at least 0.2 dl/g as measured in methylene chloride at a concentration of 0.5 g/dl at 20 °C.

    Such polycarbonates exhibit excellent optical properties such as high birefringence, and are useful as materials for optical devices.
    Also, a process for preparing the polycarbonates and novel dihydric phenols which can be used as materials for the polycarbonates are disclosed.

    摘要翻译： 含有由以下通式表示的重复单元的聚碳酸酯聚合物其中：X选自单键，-O - ， - S-，-SO 2 - ，CHEM，其中：R 1和R 2， 各自独立地选自氢原子：1至6个碳原子的烷基; 5至6个碳原子的环烷基; 其中p是0至3的整数，在对位被取代自1-5个碳原子的烷氧基的取代基取代的苯基，苯氧基或卤素基; 或对联苯基， - （CH 2）-q其中q是具有2至10的整数; 或，其中r是具有4至8的整数，并且在二氯甲烷中以0.5g / dl的浓度测量的具有至少0.2dl / g的比浓粘度[η/ s]为 20℃。这种聚碳酸酯表现出优异的光学性能，例如高双折射性，并且可用作光学器件的材料。 另外，公开了可用作聚碳酸酯材料的聚碳酸酯和新型二元酚的制备方法。

    Verfahren zur Herstellung von 4,4'-Dihydroxydiphenylether
    30.
    发明公开
    Verfahren zur Herstellung von 4,4'-Dihydroxydiphenylether 失效
    一种用于4,4'-二羟基二苯醚的制备方法。

    公开(公告)号：EP0218879A1

    公开(公告)日：1987-04-22

    申请号：EP86112089.7

    申请日：1986-09-02

    申请人： HOECHST AKTIENGESELLSCHAFT

    发明人： Vorwerk, Edgar, Dr.

    IPC分类号： C07C43/295 ,  C07C41/34 ,  C07C41/09

    CPC分类号： C07C41/34 ,  C07C41/09 ,  C07C43/295

    摘要： Die Erfindung betrifft ein Verfahren zur Herstellung von 4,4'-Dihydroxydiphenylether durch Dehydratisierung von Hydrochinon mit Sulfonsäuren oder Schwefelsäure als Katalysatoren bei erhöhten Temperaturen. Das Dehydratisierungsprodukt wird bei 80 bis 110°C mit einem Überschuß Wasser verrührt. Die dabei nicht gelösten höher kondensierten Nebenprodukte werden abgetrennt, und aus dem erhaltenen Filtrat läßt man den gewünschten Ether auskristallisieren.

    摘要翻译： 本发明涉及一种用于通过使用磺酸或硫酸作为在高温下的催化剂对苯二酚的脱水制备4,4'-二羟基二苯醚的处理。 脱水产物在80℃下搅拌至110℃用过量的水。 该不溶解高度缩合的副产物分离，并且从所得的滤液使其结晶所需的醚。