Process for preparation of 1-benzylimidazole compound, and its compound
    2.
    发明公开
    Process for preparation of 1-benzylimidazole compound, and its compound 失效
    Verfahren zur Herstellung von 1-Benzylimidazol und dessen Verbindung。

    公开(公告)号:EP0358484A2

    公开(公告)日:1990-03-14

    申请号:EP89309024.1

    申请日:1989-09-06

    摘要: A process for producing a 1-benzylimidazole compound represented by the following formula (I)
    wherein R₂ is lower alkyl or phenyl and R₄ is hydrogen or methyl
    which comprises (a) heating a 1-unsubstituted imidazole compound of formula (II)
    wherein R₂ and R₄ are as defined above, with (i) benzyl alcohol in the presence of a carboxylic acid, a carboxylic anhydride, a benzyl ester thereof or a lower alkyl ester thereof or (ii) with a benzyl ester of a carboxylic acid and (b) neutralizing the reaction product with an alkali.

    摘要翻译: 一种由下式(I)表示的1-苄基咪唑化合物的方法,其中R2是低级烷基或苯基,R4是氢或甲基,其包括(a)加热式(II)的1-未取代的咪唑化合物, 其中R 2和R 4如上定义,与(ⅰ)苄醇在羧酸,羧酸酐,其苄基酯或其低级烷基酯存在下,或(ⅱ)与 羧酸和(b)用碱中和反应产物。

    Process for synthesizing 4-halo-5(hydroxymethyl) imidazole compounds and certain novel 4-halo-5(hydroxymethyl) imidazole compounds
    4.
    发明公开
    Process for synthesizing 4-halo-5(hydroxymethyl) imidazole compounds and certain novel 4-halo-5(hydroxymethyl) imidazole compounds 失效
    Verfahren zur Herstellung 4-卤代-5(羟甲基) - 咪唑衍生和新的4-氯 - 咪唑Verbindungen。

    公开(公告)号:EP0611758A1

    公开(公告)日:1994-08-24

    申请号:EP94301080.1

    申请日:1994-02-15

    IPC分类号: C07D233/68 A61K31/415

    CPC分类号: C07D233/68

    摘要: A process for preparing, on an industrial scale, 4-halo-5(hydroxymethyl) imidazole compounds, shown below, that are useful as intermediates for medicines. A 4-halo-5(hydroxymethyl) imidazole compound is prepared by reacting a 4,5-bis(hydroxymethyl) imidazole compound with a halogenating agent such as an N-chlorosuccinimide, an N-bromosuccinimide or a chlorinated isocyanuric acid compound.

    wherein R is a hydrogen atom, an alkyl group, an aryl group or an aralkyl group, and X is a halogen atom.

    摘要翻译: 在工业规模上制备可用作药物中间体的下述的4-卤代-5-(羟甲基)咪唑化合物的方法。 通过使4,5-双(羟甲基)咪唑化合物与卤化剂如N-氯代琥珀酰亚胺,N-溴代琥珀酰亚胺或氯代异氰脲酸化合物反应来制备4-卤代-5-(羟甲基)咪唑化合物。 其中R是氢原子,烷基,芳基或芳烷基,X是卤素原子。