Method for the production of sulphamic acid halogenides
    1.
    发明授权
    Method for the production of sulphamic acid halogenides 有权
    制备氨基磺酸卤化物的方法

    公开(公告)号:US07232926B2

    公开(公告)日:2007-06-19

    申请号:US10513668

    申请日:2003-05-15

    IPC分类号: C07C19/00 C07D239/02

    摘要: The present invention relates to a process for preparing sulfamoyl halides of primary or secondary amines, comprising the following steps: i) reacting a primary or secondary amine A1 with at least equimolar amounts of SO3 or an SO3 source in the presence of at least equimolar amounts of a tertiary amine A2, based in each case on the amine A1, and ii) reacting the reaction mixture obtained in step i) with at least the amount of a phosphorus halide required by the stoichiometry; The invention further relates to a process for preparing sulfonic diamides, comprising the preparation of sulfamoyl halides by means of carrying out steps i) and ii) and subsequently reacting the sulfamoyl halide obtained with ammonia. The invention further relates to the use of this process for preparing active herbicidal ingredients having a sulfuric diamide structure. The invention further relates to novel sulfamoyl chlorides.

    摘要翻译: 本发明涉及一种制备伯胺或仲胺的氨磺酰卤的方法,包括以下步骤:i)使伯胺或仲胺A1与至少等摩尔量的SO 3或SO 3反应, 在至少等摩尔量的叔胺A2的存在下,基于胺A1,基于每种情况,并且ii)使步骤i)中获得的反应混合物与至少一定量的 化学计量所需的卤化磷; 本发明还涉及制备磺酰二酰胺的方法,其包括通过进行步骤i)和ii)制备氨磺酰卤,随后使所得氨磺酰卤与氨反应。 本发明还涉及该方法用于制备具有硫酸二酰胺结构的活性除草成分的用途。 本发明还涉及新的氨磺酰氯。

    Method of producing 1-alkyl-3-aryl-5-difluoromethoxy-1H-pyrazoles
    8.
    发明授权
    Method of producing 1-alkyl-3-aryl-5-difluoromethoxy-1H-pyrazoles 失效
    1-烷基-3-芳基-5-二氟甲氧基-1H-吡唑的制备方法

    公开(公告)号:US06897322B2

    公开(公告)日:2005-05-24

    申请号:US10250503

    申请日:2002-01-15

    IPC分类号: C07D231/20 C07D231/14

    CPC分类号: C07D231/20

    摘要: The invention relates to a method of preparing 1-alkyl-3-aryl-5-difluoromethoxy-1H-pyrazoles of the formula (I), wherein aryl represents a mono- or polysubstituted phenyl ring, and R1 represents C1-C4 alkyl. The inventive method is characterized by reacting, in a first reaction step, a β-ketoester of the general formula (II) with hydrazine and by successively reacting the reaction product obtained with chlorodifluoromethane and a compound R1-L, wherein R1 has the meanings indicated above and L represents the leaving group of a nucleophilic displacement reaction.

    摘要翻译: 本发明涉及制备式(I)的1-烷基-3-芳基-5-二氟甲氧基-1H-吡唑的方法,其中芳基表示单取代或多取代的苯环,R 1 >表示C 1 -C 4烷基。 本发明的方法的特征在于在第一反应步骤中使通式(II)的β-酮酯与肼反应,并将所得反应产物与氯二氟甲烷和化合物R 1 - L,其中R 1具有上述含义,L表示亲核置换反应的离去基团。