Document Type and Number:
Japanese Patent JPS6124385
Kind Code:
B2
Abstract:
PCT No. PCT/JP82/00198 Sec. 371 Date Jan. 14, 1983 Sec. 102(e) Date Jan. 18, 1983 PCT Filed May 26, 1982 PCT Pub. No. WO82/04251 PCT Pub. Date Dec. 9, 1982.DL-cystein is produced by reacting a beta -halogenoalanine with a trithiocarbonate to obtain the mono(aminocarboxyethyl) ester of trithiocarbonate and then subjecting the ester to acid decomposition. The above process requires mild reaction conditions, is easy to carry out its reactions and can afford DL-cystein with high yield. It is thus an excellent production process of DL-cystein from the industrial viewpoint.
Inventors:
MITA RYUICHI
OOOKA MASAHARU
HIGUCHI CHOJIRO
KATO TOSHIO
KAWASHIMA NOBUYUKI
YAMAGUCHI TERUHIRO
NAGAI SHOSUKE
TAKANO TAKAO
OOOKA MASAHARU
HIGUCHI CHOJIRO
KATO TOSHIO
KAWASHIMA NOBUYUKI
YAMAGUCHI TERUHIRO
NAGAI SHOSUKE
TAKANO TAKAO
Application Number:
JP8245381A
Publication Date:
June 10, 1986
Filing Date:
June 01, 1981
Export Citation:
Assignee:
MITSUI TOATSU CHEMICALS
International Classes:
C07C319/02; C07C67/00; C07C313/00; C07C323/58; C07C325/00; C07C329/00; C07C