Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1991-11-20
1993-05-11
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
560 17, C07C31912
Patent
active
052102912
ABSTRACT:
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.
REFERENCES:
patent: 1988501 (1935-01-01), Lubs et al.
patent: 3440288 (1969-04-01), Hoffmann et al.
Goda Hiroshi
Hata Hiroyuki
Kagano Hirokazu
Nakano Masahito
Ohe Toshiyuki
Clarke Vera C.
Dees Jos,e G.
Sumitomo Seika Chemicals Co. Ltd.
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