反应详情

3.00 g (17.75 mmol) of 1,3-dimethyl-2,2-dichloroimidazolidine and 2.63 g (17.77 mmol) of sodium dimethylphosphate are mixed with 20 ml of acetonitrile and 2 ml of water. The reaction mixture is stirred for 12 hours at room temperature, and the precipitate NaCl is subsequently filtered off. The solvent is distilled off, and the residue is dried for 6 hours under a reduced pressure of 7 Pa and at an oil-bath temperature of 70-80° C., giving 4.39 g of 1,3-dimethyl-2-chloroimidazolidinium dimethylphosphate, corresponding to a yield of 95.6%.

1. filtrationthe precipitate NaCl is subsequently filtered off
2. distillationThe solvent is distilled off
3. customthe residue is dried for 6 hours under a reduced pressure of 7 Pa and at an oil-bath temperature of 70-80° C.