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    • 1. 发明专利
    • Method for preparing chlorosulfonyl benzoyl chloride compound
    • 氯化苯甲酰氯化合物的制备方法
    • JP2013095703A
    • 2013-05-20
    • JP2011240058
    • 2011-11-01
    • Sumitomo Seika Chem Co Ltd住友精化株式会社
    • FUJITA KOJIASHIKAWA MASAYASU
    • C07C303/02C07C309/89
    • PROBLEM TO BE SOLVED: To provide a method for preparing a chlorosulfonyl benzoyl chloride compound useful as a synthetic intermediate for a pharmaceutical raw material etc.SOLUTION: The method for preparing the chlorosulfonyl benzoyl chloride compound represented by formula (2) (wherein R is a hydrogen atom, halogen atom, 1-4C alkyl group, 1-4C alkoxyl group, nitro group or carboxyl group; and Mand Mare each independently a hydrogen atom or alkali metal atom, provided that at least one thereof is an alkali metal atom) comprises chlorinating a metal salt of a sulfobenzoic acid compound, dissolving a metal chloride produced as a byproduct in acid water and subsequently removing the same through liquid separation.
    • 解决方案:制备用作药物原料等的合成中间体的氯磺酰苯甲酰氯化合物的方法。解决方案:由式(2)表示的氯磺酰基苯甲酰氯化合物的制备方法 )(其中R是氢原子,卤素原子,1-4C烷基,1-4C烷氧基,硝基或羧基; M 1 和M 2 各自独立地为氢原子或碱金属原子,条件是其至少一个为碱金属原子)包括将磺基苯甲酸化合物的金属盐氯化,将作为 在酸性水中的副产物,随后通过液体分离除去。 版权所有(C)2013,JPO&INPIT