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8 条记录 (耗时 0.011 秒)

    Method for preparing bromomenthyl-biphenyl derivatives
    1.
    发明授权
    Method for preparing bromomenthyl-biphenyl derivatives 有权
    溴代联苯衍生物的制备方法

    公开(公告)号：US06214999B1

    公开(公告)日：2001-04-10

    申请号：US09554566

    申请日：2000-07-14

    申请人： Michel Biard ,  Bertrand Castro

    发明人： Michel Biard ,  Bertrand Castro

    IPC分类号： C07D25704

    CPC分类号： C07C253/30 ,  Y02P20/55 ,  C07C255/50

    摘要： The present invention relates to a process for the preparation of 4′-bromomethyl-biphenyl derivatives of the formula: by reacting a 4′-methyl-biphenyl derivative of the formula: with a brominating agent a in a hydrobromic acid/alkali metal bromate system in a two-phase medium, and under photo-iradiation, where R is as defined in the specification.

    摘要翻译： 本发明涉及一种制备下式的4'-溴甲基 - 联苯衍生物的方法：将下式的4'-甲基 - 联苯衍生物与氢溴酸/碱金属溴酸盐体系中的溴化剂a反应 在两相介质中和在光照下，其中R如说明书中所定义。

    Method for preparing 4-methyl-biphenyl derivatives
    2.
    发明授权
    Method for preparing 4-methyl-biphenyl derivatives 有权
    制备4-甲基 - 联苯衍生物的方法

    公开(公告)号：US06407253B1

    公开(公告)日：2002-06-18

    申请号：US09269101

    申请日：1999-07-14

    申请人： Mouad Alami ,  Gérard Cahiez ,  Bertrand Castro ,  Jean-Robert Dormoy ,  Eric Riguet

    发明人： Mouad Alami ,  Gérard Cahiez ,  Bertrand Castro ,  Jean-Robert Dormoy ,  Eric Riguet

    IPC分类号： C07D25704

    CPC分类号： C07D257/04 ,  C07C253/30 ,  Y02P20/55 ,  C07C255/50

    摘要： The subject-matter of the invention is a process for the preparation of substituted 4-methylbiphenyls of general formula: in which R is a cyano group or a protected tetrazolyl group of formula: in which R1, situated at the 1 or 2 position of the tetrazolyl group, is a protective group, characterized in that a halobenzene of formula: in which Hal is a halogen atom and R has the same meaning as above, is reacted with a p-tolylmagnesium halide in the presence of a linear or branched polyether and of a catalyst comprising a transition metal.

    摘要翻译： 本发明的主题是制备以下通式的取代的4-甲基联苯的方法：其中R是氰基或被保护的四唑基，其中R 1位于该位置的1或2位上 四唑基是一种保护基，其特征在于Hal为卤素原子，R为与上述相同含义的卤代苯，与直链或支链聚醚存在下的对甲苯基卤化镁反应， 的包含过渡金属的催化剂。

    Process for the preparation of highly pure 5,5′-bi-1H-tetrazolediammonium salts
    3.
    发明授权
    Process for the preparation of highly pure 5,5′-bi-1H-tetrazolediammonium salts 失效
    制备高纯度5,5'-双-1,5-四唑基铵盐的方法

    公开(公告)号：US06433181B1

    公开(公告)日：2002-08-13

    申请号：US09871946

    申请日：2001-06-04

    申请人： Shunji Hyoda ,  Masaharu Kita ,  Atsushi Sugino ,  Shuichi Nemugaki ,  Takahiro Ueta ,  Koki Sato

    发明人： Shunji Hyoda ,  Masaharu Kita ,  Atsushi Sugino ,  Shuichi Nemugaki ,  Takahiro Ueta ,  Koki Sato

    IPC分类号： C07D25704

    CPC分类号： C07D257/04

    摘要： A process for the preparation of a highly pure 5,5′-bi-1H-tetrazolediammonium salt comprising adding a small amount of ammonia water to a reaction solution containing a 5,5′-bi-1H-tetrazolediammonium salt synthesized in the presence of a copper catalyst, removing by filtration the blue insoluble components of formed copper.ammonia.5,5′-bi-1H-tetrazole complex to obtain a filtrate of the 5,5′-bi-1H-tetrazoledisodium salt and reacting the filtrate with an aqueous solution of ammonium chloride, and recovering the formed, highly pure ammonium salt as sparingly soluble crystals.

    摘要翻译： 一种制备高纯度5,5'-双-1,5-四唑基铵盐的方法，包括向含有5,5'-双-1,5-四唑基铵盐的反应溶液中加入少量氨水，该反应溶液在 铜催化剂，通过过滤除去形成的铜五氢-5,5'-双-1,5-四唑络合物的蓝色不溶性组分，得到5,5'-双-1,5-四唑基二钠盐的滤液，并将滤液与 氯化铵水溶液，并回收形成的高纯度铵盐作为微溶晶体。

    Production process and intermediate of tetrazole compound
    4.
    发明授权
    Production process and intermediate of tetrazole compound 失效
    四唑化合物的生产工艺和中间体

    公开(公告)号：US06191289B1

    公开(公告)日：2001-02-20

    申请号：US09176198

    申请日：1998-10-21

    申请人： Hideki Ushio ,  Takayuki Higashii ,  Masayoshi Minai ,  Akihiko Nakamura

    发明人： Hideki Ushio ,  Takayuki Higashii ,  Masayoshi Minai ,  Akihiko Nakamura

    IPC分类号： C07D25704

    CPC分类号： C07D257/04 ,  C07C251/86 ,  C07C257/18 ,  C07C257/22 ,  C07D405/04

    摘要： There are disclosed an industrially favorable process for producing a tetrazole compound of general formula (1): characterized in that a nitrile of general formula (2): R1CN  (2) is reacted with hydrazine or a salt thereof in the presence of a catalyst, followed by reaction with a nitrous acid compound of general formula (3): ANO2  (3) or a nitrile of general formula (2) is reacted with hydrogen sulfide, followed by reaction with an alkyl halide of general formula (4): R4J  (4) with hydrazine or a salt thereof, and then with a nitrous acid compound of general formula (3); and an intermediate of general formula (5): R1C(═R5)R6  (5) which is useful for the production of the tetrazole compound (in which R1 to R6, A and J in the above formulas are as defined in the specification).

    摘要翻译： 公开了用于制备通式（1）的四唑化合物的工业上有利的方法：其特征在于通式（2）的腈与肼或其盐在催化剂存在下反应，然后与 将通式（3）的亚硝酸化合物或通式（2）的腈与硫化氢反应，然后与通式（4）的烷基卤反应：与肼或其盐反应，然后与 通式（3）的亚硝酸化合物; 和通式（5）的中间体：其可用于制备四唑化合物（其中上述式中的R 1至R 6，A和J如说明书中所定义）。