Process for preparation of thiols using a benzopinacol initiator
US4117017A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Apr 18, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/045
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a process for preparing thiols and polythiols by the addition of a thiolcarboxylic acid, e.g., thiolacetic acid, to ethylenically unsaturated compounds in the presence of an initiator comprising a pinacol of the general formula: ##STR1## wherein R.sub.1 and R.sub.3 are members independently selected from the group consisting of substituted and unsubstituted aromatic radicals, R.sub.2 and R.sub.4 are members independently selected from the group consisting of substituted and unsubstituted aliphatic and aromatic radicals and X and Y are members independently selected from the group consisting of hydroxyl, alkoxy and aryloxy to obtain a thiol ester which is thereafter hydrolyzed to yield the corresponding thiol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.