Process for production of thiolcarbamates and the thiolcarbamates obtained by said process
US4343737A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1981 |
| Grant date | Aug 10, 1982 |
| Priority date | — |
| Expiry date | Mar 25, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C329/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing a thiolcarbamate compound of the following formula ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a halogen atom or a nitro group, R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, m is 1 or 2, and n is an integer of 4 to 6, which comprises reacting an .alpha.-methylstyrene of the following formula ##STR2## wherein R.sub.1 is as defined above, or its dimer with hydrogen sulfide in the presence of a catalyst to form a mercaptan of the following formula ##STR3## wherein R.sub.1 is as defined above, and reacting the mercaptan of formula (II) with a carbamoyl chloride of the following formula ##STR4## wherein R.sub.2, m and n are as defined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.