Production process of DL-cystein
US4453008A · kind A · utility
0Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1983 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Jan 14, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C319/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.