反应详情

To 100 ml of acetone, 2.0 g of 2-methylthio-1,3-dithiolium perchlorate was dissolved, and 50 ml of an ethyl ether solution containing 2.3 g of N-methyl methionine ethyl ester was gradually added thereto under stirring at room temperature. The mixture was stirred at room temperature for 6 hours, and then the solvent was distilled off. The residue was washed with ethyl acetate, whereby 7 g (yield: 54%) of N-(1,3-dithiol-2-ylidene)-N-methyl-N-(3-methylthio-1-ethoxycarbonylpropyl)ammonium perchlorate (Compound No. 6) was obtained as oily substance.

1. additionwas gradually added
2. stirringThe mixture was stirred at room temperature for 6 hours
3. distillationthe solvent was distilled off