专利检索 ap:("Michio Suzuki" OR "Hiroyuki Hata" OR "Masato Yoshikawa" OR "Toshiyuki Ohe" OR "Hirokazu Kagano" OR "Hiroshi Goda" OR "Masahito Nakano" OR "Masaki Teramoto") AND inv:"Toshiyuki Ohe" 第 1 页

1.

发明授权
Method for producing dichlorophenylthioglycolic acid 失效
标题翻译：生产二氯乙酰胆酸的方法

公开(公告)号：US5210291A

公开(公告)日：1993-05-11

申请号：US794906

申请日：1991-11-20

申请人： Michio Suzuki , Hiroyuki Hata , Masato Yoshikawa , Toshiyuki Ohe , Hirokazu Kagano , Hiroshi Goda , Masahito Nakano , Masaki Teramoto

发明人： Michio Suzuki , Hiroyuki Hata , Masato Yoshikawa , Toshiyuki Ohe , Hirokazu Kagano , Hiroshi Goda , Masahito Nakano , Masaki Teramoto

IPC分类号： C07C319/14 , C07C323/52

CPC分类号： C07C319/14 , C07C323/52

摘要： 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, advantageously producing dichlorophenylthioglycolic acid in high yield.