Ten N (4 substituted pyrimidin 2 yl) 2 trifluoroacetylamino benzenesulfonylureas were synthesized. Their structures were confirmed by elemental analysis and 1H NMR. Some of the compounds showed good herbicidal act...Ten N (4 substituted pyrimidin 2 yl) 2 trifluoroacetylamino benzenesulfonylureas were synthesized. Their structures were confirmed by elemental analysis and 1H NMR. Some of the compounds showed good herbicidal activity.展开更多
The title compound 3 was synthesized from diethylguanidine nitrate（2） obtained from diethylamine, CaCN2 and HNO3. The mixture consisted of 0.5 mol 2, 0.55 mol acetonyl propionate, 3 g benzyltriethylammonium chloride...The title compound 3 was synthesized from diethylguanidine nitrate（2） obtained from diethylamine, CaCN2 and HNO3. The mixture consisted of 0.5 mol 2, 0.55 mol acetonyl propionate, 3 g benzyltriethylammonium chloride, and 44 g NaOH was refluxed for 4 hours to give 85 g 3, in yield 94.6%.展开更多
文摘Ten N (4 substituted pyrimidin 2 yl) 2 trifluoroacetylamino benzenesulfonylureas were synthesized. Their structures were confirmed by elemental analysis and 1H NMR. Some of the compounds showed good herbicidal activity.
文摘The title compound 3 was synthesized from diethylguanidine nitrate（2） obtained from diethylamine, CaCN2 and HNO3. The mixture consisted of 0.5 mol 2, 0.55 mol acetonyl propionate, 3 g benzyltriethylammonium chloride, and 44 g NaOH was refluxed for 4 hours to give 85 g 3, in yield 94.6%.
