利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

139 条记录 (耗时 0.028 秒)

    Dioxolane and dioxane derivatives and a process for their preparation
    8.
    发明授权
    Dioxolane and dioxane derivatives and a process for their preparation 有权
    二氧杂环戊烷和二恶烷衍生物及其制备方法

    公开(公告)号：US08222435B2

    公开(公告)日：2012-07-17

    申请号：US12969138

    申请日：2010-12-15

    申请人： Sergii Pazenok ,  Norbert Lui ,  Igor Gerus ,  Olga Balabon

    发明人： Sergii Pazenok ,  Norbert Lui ,  Igor Gerus ,  Olga Balabon

    IPC分类号： C07D319/12 ,  C07D307/00 ,  C07D317/00 ,  C07D323/02

    CPC分类号： C07D317/30 ,  C07D319/12

    摘要： The present invention relates to novel acylmethylene-1,3-dioxolanes and acylmethylene-1,4-dioxanes of the general formula (I) in which R1, R2, R3 and n have the meanings given in the description, and also a novel process for their preparation. Acylmethylene-1,3-dioxolanes and acylmethylene-1,4-dioxanes are important intermediates for the preparation of pyrazoles and anthranilamides, which can be used as insecticides.

    摘要翻译： 本发明涉及通式（I）的新型酰基亚甲基-1,3-二氧戊环和酰基亚甲基-1,4-二氧杂环己烷，其中R 1，R 2，R 3和n具有本说明书中给出的含义， 为他们的准备。 酰亚甲基-1,3-二氧戊环和酰亚胺-1,4-二氧杂环己烷是制备可用作杀虫剂的吡唑和邻氨基苯甲酰胺的重要中间体。

    PROCESS FOR PREPARING 2,4-DIHYDROXYPHENYL 4-METHOXYBENZYL KETONES
    10.
    发明申请
    PROCESS FOR PREPARING 2,4-DIHYDROXYPHENYL 4-METHOXYBENZYL KETONES 有权
    制备2,4-二羟基苯甲酸4-甲氧基苄基酮的方法

    公开(公告)号：US20100121082A1

    公开(公告)日：2010-05-13

    申请号：US12525023

    申请日：2008-02-16

    申请人： Sergii Pazenok ,  Norbert Lui

    发明人： Sergii Pazenok ,  Norbert Lui

    IPC分类号： C07D311/26 ,  C07C45/89

    CPC分类号： C07C45/46 ,  C07C49/83 ,  C07C49/84

    摘要： The invention relates to a process for preparing 2,4-dihydroxyphenyl 4-methoxybenzyl ketones of the formula (I) by Friedel-Crafts acylation in hydrogen fluoride (HF).2,4-Dihydroxyphenyl 4-methoxybenzyl ketones of the formula (I) in which R1 and R2 are each hydrogen, chlorine, fluorine, bromine, iodine, CF3, methyl, optionally substituted alkoxy, —OCF3, —C(CH3)3, —CH2(CH3)2, —CH(CH3)2, R3 is hydrogen, Cl, F, Br, optionally substituted alkyl, optionally substituted alkoxy, —C(CH3)3, and X is hydroxyl, F, Cl, Br, optionally substituted alkoxy, are obtained in high yield and high purity by reacting phenylacetic acid derivatives of the formula (II) with phenols of the formula (III) in liquid hydrogen fluoride (HF).

    摘要翻译： 本发明涉及通过在氟化氢（HF）中弗瑞德 - 克来福特酰化制备式（I）的2,4-二羟基苯基4-甲氧基苄基酮的方法。 式（I）的2,4-二羟基苯基4-甲氧基苄基酮，其中R 1和R 2各自为氢，氯，氟，溴，碘，CF 3，甲基，任选取代的烷氧基，-OCF 3，-C（CH 3） -CH 2（CH 3）2，-CH（CH 3）2，R 3是氢，Cl，F，Br，任选取代的烷基，任选取代的烷氧基，-C（CH 3）3，X是羟基，F，Cl，Br， 通过使式（II）的苯乙酸衍生物与式（III）的酚在液体氟化氢（HF）中反应，以高产率和高纯度获得任选取代的烷氧基。