Process for preparing esters of thiolcarbamic acids
US4613461A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 31, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Dec 31, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C333/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a new process for preparing known thiolcarbamate esters of the general formula (I) ##STR1## wherein R.sup.1 and R.sup.2 stand independently for hydrogen or a straight or branched chain alkyl group containing 1 to 6 carbon atoms or an alkenyl group containing 2 to 6 atoms, or an alkyl group containing 1 to 6 or an alkenyl group containing 2 to 6 carbon atoms and mono- or polysubstituted by halogen, oxygen, sulphur and/or nitrogen; or PA1 R.sup.1 and R.sup.2 together may represent an optionally substituted .alpha.,.omega.-alkylene group containing 4 to 6 carbon atoms; PA1 R.sup.3 and R.sup.4 stand independently for hydrogen or an alkyl group containing 1 to 4 carbon atoms and optionally substituted by halogen or by a group containing oxygen, sulphur and/or nitrogen; and PA1 R.sup.5 and R.sup.6 both stand for hydrogen; or PA1 R.sup.5 and R.sup.6 together may represent a chemical bond. The compounds of general formula (I) are prepared by reacting PA1 (a) thiolcarbamate salts of the general formula (II) ##STR2## wherein the meanings of R.sup.1 and R.sup.2 are as defined above, and PA2 Y stands for a primary, secondary or tertiary ammonium ion or an alkaline meta…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.