Improved Method for the Preparation of 1,1-Dimethyl-3-arylureas Using Chlorocarbonylsulfenyl Chloride |
| |
| Authors: | K. Adeppa D. C. Rupainwar |
| |
| Affiliation: | U.P. Technical University , Lucknow , India |
| |
| Abstract: | A convenient procedure for preparing some arylureas having herbicidal properties is reported. The method has two steps: (1) reaction of arylamine with chlorocarbonylsulfenyl chloride in the presence of nonpolar solvent to produce aryl carbonylsulfenyl chloride and (2) reaction with dimethylamine in a two-phase reaction catalysed by phase-transfer catalyst to produce the corresponding aryl ureas. |
| |
| Keywords: | Arylureas carbonylation chlorocarbonylsulfenyl chloride isoproturon p-cumidine |
|
