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    VERFAHREN ZUM HERSTELLEN VON VINYLOXIMETHERN
    4.
    发明公开
    VERFAHREN ZUM HERSTELLEN VON VINYLOXIMETHERN 有权
    的生产方法vinyloxime醚

    公开(公告)号：EP1098872A1

    公开(公告)日：2001-05-16

    申请号：EP99938330.0

    申请日：1999-07-23

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： PREISS, Thomas ,  HENKELMANN, Jochem ,  TROFIMOV, Boris ,  MIKHALEVA, Albina ,  VASILTSOV, Alexander, M.

    IPC分类号： C07C249/12 ,  C07C251/34

    CPC分类号： C07C251/38 ,  C07C251/44

    摘要： The invention relates to a method for producing vinyl oxime-ethers of general formula (I) by reacting an oxime with an alkine, where R?1 and R2¿ are the same or different and represent alkyl or aryl rests, R3 is hydrogen, an alkyl or aryl rest, and R4 is a rest which is the same as R3 and can be different from R3 or represents a hydroxy alkyl rest. According to the invention the reaction is carried out in a superbasic, polar organic solvent in the presence of a strong base, under conditions which are such that the resulting vinyl oxime-ether remains in contact with the other constituents of the reaction mixture for such a short time that it cannot to a significant extent convert into secondary products or decompose.

    Method for producing benzyl bromide derivatives
    6.
    发明公开
    Method for producing benzyl bromide derivatives 审中-公开
    Verfahren zur Herstellung von Benzylbromid-Derivaten

    公开(公告)号：EP0908446A1

    公开(公告)日：1999-04-14

    申请号：EP98118936.8

    申请日：1998-10-07

    申请人： Sumitomo Chemical Company, Limited

    发明人： Takuma, Kenzi ,  Kakimizu, Akiko ,  Kusaba, Tomoyuki

    IPC分类号： C07C249/12 ,  C07C249/14 ,  C07C251/48

    CPC分类号： C07C249/12 ,  C07C249/14 ,  C07C251/48

    摘要： The method for producing the benzyl bromide derivatives of the formula:
    wherein R 1 represents a C 1 to C 5 alkyl group, which comprises reacting a 2-methylphenylacetic acid derivative of the formula:
    wherein R 1 represents the same meaning above, with bromine in the presence of an alkali metal salt.
    In case that R 1 is an ethyl or isopropyl group, the recrystallization of the above reaction product from aliphatic hydrocarbon solution gives the benzyl bromide derivatives efficiently and in high purity.

    摘要翻译： 制备下式的苄基溴衍生物的方法：其中R1表示C1至C5烷基，其包括使下式的2-甲基苯乙酸衍生物：其中R 1表示与上述相同的含义，与 溴在碱金属盐的存在下进行。 在R 1为乙基或异丙基的情况下，上述反应产物从脂族烃溶液中重结晶得到苄基溴衍生物有效且高纯度。

    PROCESS FOR PRODUCING CARBOXYLIC ACID DERIVATIVE
    7.
    发明授权
    PROCESS FOR PRODUCING CARBOXYLIC ACID DERIVATIVE 失效
    用于生产羧酸衍生物

    公开(公告)号：EP0658541B1

    公开(公告)日：1998-05-20

    申请号：EP94919838.6

    申请日：1994-07-01

    申请人： SHIONOGI & CO., LTD. ,  SUMITOMO CHEMICAL COMPANY LIMITED

    发明人： TAKASE, Akira ,  KAI, Hiroyuki ,  MASUI, Moriyasu ,  MASUMOTO, Katuhisa ,  NAKAMURA, Akihiko ,  KIYOSHIMA, Yujiro ,  SASAKI, Mikio

    IPC分类号： C07C251/48 ,  C07C249/12

    CPC分类号： C07C249/12 ,  C07C251/48

    摘要： A process for producing a carboxylic acid derivative represented by general formula [VIII], (wherein R , R , R and L are each as defined in the specification), which comprises reacting a benzyl halide with a cyano compound to give a phenylacetonitrile, reacting the nitrile with an alkyl nitrite in the presence of a base to give an alpha -hydroxyiminophenylacetonitrile, reacting the hydroxy nitrile with an alkylating agent to give an alpha -alkoxyiminophenylacetonitrile, hydrolyzing the alkoxy nitrile in the presence of a base, optionally after hydration and acid treatment, to give an alpha -alkoxyiminophenylacetic acid, and finally reacting the acid with a halogenating agent, or converting the acid into a corresponding metal salt and reacting the salt with an alkylating agent, or reacting the acid with a lower alcohol in the presence of an acidic catalyst. According to this process, the reactions can be advanced through the respective steps under mild conditions, and the target derivative [VIII] can be produced even without resort to high-pressure steam equipment, high-temperature heat medium equipment, refrigerator, and so forth. Further, this process is advantageous in that only a single solvent will suffice without the necessity for using various solvents according to the respective steps.

    Halogenierte Triazolinone
    10.
    发明公开
    Halogenierte Triazolinone 失效
    卤代三唑啉酮。

    公开(公告)号：EP0661262A1

    公开(公告)日：1995-07-05

    申请号：EP95101833.2

    申请日：1990-10-20

    申请人： BAYER AG

    发明人： Müller, Dr. Klaus-Helmut ,  Babczinski, Dr. Peter ,  Santel, Dr. Hans-Joachim ,  Schmidt, Dr. Robert R.

    IPC分类号： C07C249/12

    CPC分类号： C07D401/12 ,  A01N47/38 ,  C07D249/12 ,  C07D403/12 ,  C07D405/12 ,  C07D409/12

    摘要： Halogenierte Triazolinone der Formel (II),

    in welcher

    R¹ für C₃-C₆-Alkenyl, für gegebenenfalls durch C₁-C₄-Alkyl substituiertes C₃-C₆-Cycloalkyl, für C₁-C₆-Alkoxy, für C₁-C₄-Alkylamino oder für Di-(C₁-C₄-alkyl)-amino steht und
    R² für Fluor, Chlor, Brom oder Jod steht,
    sind Ausgangs- bzw. Zwischenprodukte für die Herstellung von halogenierten Sulfonylaminocarbonyltriazolinonen mit herbizider Wirksamkeit.

    摘要翻译： 式（II）的卤代三唑啉酮其中R 1表示C 3 -C 6 - 烯基，任选被C 1 -C 4 - 烷基取代的C 3 -C 6环烷基或C 1 -C 6 - 烷氧基，C 1 -C 6 - C 4 - 烷基氨基或二 - （C 1 -C 4 - 烷基） - 氨基和R 2代表氟，氯，溴或碘，是用于制备除草活性的卤代磺酰基氨基羰基三唑啉酮的起始原料或中间体。