C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/526
C07C 149/247 (1980.01)
Patent
CA 1183870
- 13 - ABSTRACT DL-cystein is produced by reacting a .beta.-halogeno- alanine with a trithiocarbonate to obtain the mono(amino- carboxyethyl) 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.
404143
Higuchi Chojiro
Katoh Toshio
Kawashima Nobuyuki
Mita Ryuichi
Nagai Shousuke
Mitsui Toatsu Chemicals Inc.
Sim & Mcburney
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