Process for producing arylsulfamates
US4391976A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1981 |
| Grant date | Jul 5, 1983 |
| Priority date | — |
| Expiry date | Oct 19, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D251/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing an N-(heterocyclo-aminocarbonyl)-arylsulfamate of the general formula I ##STR1## wherein R.sub.1 is hydrogen, methoxy or C.sub.1 -C.sub.3 -alkyl, PA1 R.sub.2 is hydrogen, fluorine, chlorine, bromine, nitro, CF.sub.3, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkoxycarbonyl, PA1 R.sub.3 is hydrogen, fluorine, chlorine, bromine, methyl or C.sub.1 -C.sub.4 -alkoxy, PA1 R.sub.4 is hydrogen, fluorine, chlorine, bromine, nitro, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkoxycarbonyl, PA1 R.sub.5 is hydrogen, fluorine, chlorine, bromine, nitro or CF.sub.3, PA1 R.sub.6 is hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, PA1 X is C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.2 -alkylthio, methoxymethyl, methoxyethyl, CF.sub.3 or chlorine, PA1 Y is C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.2 -alkylthio, methoxymethyl or methoxyethyl, and PA1 Z is the methine group or nitrogen, which process comprises adding, in an inert organic solvent, chlorosulfonylisocyanate of the formula III EQU Cl--SO.sub.2 --N.dbd.C.dbd.O (III)…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.