Catalytic hydrogenolysis of organic thiocyanates and disulfides to thiols
US5728887A · kind A · utility
3Cited by
6References
9Claims
0Family size
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Key dates
| Filing date | Apr 10, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Apr 10, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C319/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of a thiol comprising reacting hydrogen with a thiocyanate or disulfide wherein the reaction with thiocyanate is conducted in the presence of a catalyst comprising a Group VIII metal or a mixture thereof; and the reaction with thiocyanate or with disulfide is conducted in the presence of a catalyst comprising a Group VIII metal or mixture thereof in the presence of a modifier metal selected from a group consisting of Group IB, Group IIB, Group IIIA, Group IVA, Group VA and Group VIA metal or mixture thereof, said catalyst being on a porous insoluble support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.