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44hidorokishii55harogenoo66arukirupirimijinnoharogenkasuisosanennoseiho

机译:44羟基位置55卤原子66烷基嘧啶卤化氢差异年寿保险

摘要

PURPOSE:To prepare the titled compound useful as a synthetic intermediate of an aminopyrimidine compound which is useful as agricultural chemicals such as insecticide, miticide, etc., by contacting and reacting 4-hydroxy-6-alkylpyrimidine directly with halogen. CONSTITUTION:4-Hydroxy-6-alkylpyrimidine is made to contact with a halogen in a solvent such as acetic acid at 40-70 deg.C, preferably at a molar ratio of 1:(1- 2) to obtain the objective 4-hydroxy-5-halogeno-6-alkyl-pyrimidine hydrogen halide. The liquid left after separating the objective compound can be recycled and reused. Since the objective compound can be obtained in the form of a hydrogen halide salt, it can be separated extremely easily, and used conveniently for the reaction with phosphorus oxychloride. EFFECT:High yield and selectivity.
机译:目的:通过使4-羟基-6-烷基嘧啶直接与卤素接触并使之反应,来制备可用作氨基嘧啶化合物的合成中间体的标题化合物,该化合物可用作农药,杀虫剂,杀螨剂等农药。组成:使4-羟基-6-烷基嘧啶在诸如乙酸的溶剂中于40-70℃,优选地以1:(1-2)的摩尔比与卤素接触以获得目标4-羟基-5-卤代-6-烷基-嘧啶卤化氢。分离出目标化合物后剩下的液体可以循环再利用。由于目标化合物可以以卤化氢盐的形式获得,因此可以非常容易地分离,并且可以方便地用于与氯氧化磷的反应。效果:高收率和选择性。

著录项

  • 公开/公告号JPH0231713B2

    专利类型

  • 公开/公告日1990-07-16

    原文格式PDF

  • 申请/专利权人 UBE INDUSTRIES;

    申请/专利号JP19820103754

  • 发明设计人 HONDA TAKEO;FUJII KATSUTOSHI;

    申请日1982-06-18

  • 分类号C07D239/36;

  • 国家 JP

  • 入库时间 2022-08-22 06:22:48

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