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    • 2. 发明授权
    • 2-클로로메틸페닐아세트산 유도체의 제조 방법
    • 2-클로로메틸페닐아세트산유도체의제조방법
    • KR100934521B1
    • 2009-12-29
    • KR1020047013247
    • 2003-02-06
    • 바스프 에스이
    • 마이어,구이도쿨만,올리버볼프,베른트카일,미하엘
    • C07C249/12
    • C07C249/12C07C251/48
    • The invention relates to a method for producing 2-chloromethylphenyl acetic acid derivatives of formula (I), in which X represents C1-C4 alkoxy or methylamino, by cleaving the ether bonds in compounds of formula (II), in which R represents C1-C4 alkyl, C1-C4 alkoxy, C1-C2 alkyl halide, C1-C4 alkylcarbonyl, C1-C4 alkylcarbonyloxy, halogen, nitro or cyano, and X has the above-mentioned meaning. The inventive method is characterized in that the transformation takes place in the presence of hydrogen chloride and of an inert solvent, and in that a catalyst selected from the group comprised of: iron, indium or halogenides, oxides or triflates thereof is added to the reaction mixture.
    • 本发明涉及式(I)的2-氯甲基苯基乙酸衍生物的制备方法,其中X代表C 1 -C 4烷氧基或甲氨基,通过裂解式(II)化合物中的醚键,其中R代表C1- C4烷基,C1-C4烷氧基,C1-C2烷基卤,C1-C4烷基羰基,C1-C4烷基羰基氧基,卤素,硝基或氰基,X具有上述含义。 本发明的方法的特征在于转化在氯化氢和惰性溶剂存在下进行,并且将选自铁,铟或卤化物,其氧化物或三氟甲磺酸盐的催化剂加入反应 混合物。