申请人:SUMITOMO SEIKA CHEMICALS CO., LTD.
公开号:EP0488237A1
公开(公告)日:1992-06-03
The present invention is directed to a method for producing dichlorophenylthioglycolic acid which comprises reacting monobromodichlorobenzene or trichlorobenzene with a thioglycolate in a ratio of 0.5 to 2.5 mols of the latter to 1 mol of the former in a polar solvent, and to a method for producing dichlorophenylthioglycolic acid comprising further reacting the reaction mixture obtained as above with a monohalogenoacetate.
The method of the present invention is very useful, industrially advantageous and results in a high yield.
本发明涉及一种生产二氯苯硫基乙醇酸的方法,该方法包括在极性溶剂中,以 0.5 至 2.5 摩尔后者与 1 摩尔前者之比,使一溴二氯苯或三氯苯与巯基乙酸酯反应;本发明还涉及一种生产二氯苯硫基乙醇酸的方法,该方法包括使上述得到的反应混合物与一卤代乙酸酯进一步反应。
本发明的方法非常有用,具有工业优势,而且产率高。