Photosynthesis of mercaptans
US4233128A · kind A · utility
9Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1979 |
| Grant date | Nov 11, 1980 |
| Priority date | — |
| Expiry date | Apr 30, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S204/912
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Synthesis of mercaptans by the photochemical reaction of an olefin with hydrogen sulphide in the presence of an initiator constituted by benzophenone, thiobenzophenone or a mixture of the two, preferably accompanied by an organic compound of an element of Group VA of the Periodic Classification. These initiators can carry substituents on either or both of the two benzene rings. The light utilized can have a wavelength of 300 to 600 nm. The process allows various mercaptans to be obtained with good yields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.