反应详情

A portion (1 g, 5.23 mmol) of the 3,4-dichlorophenethyl alcohol produced in (1) above was dissolved in pyridine (10 ml) and methanesulfonyl chloride (0.61 ml, 7.85 mmol) was slowly added dropwise, followed by stirring at room temperature for 1 h and pouring into water. The mixture was subjected to extraction with ethyl acetate and concentrated under vacuum; the residue was dissolved in 50 ml of a solution of 40% methylamine in methanol and the solution was stirred overnight at room temperature, followed by concentration under vacuum. The residue was subjected to column chromatography using a 9:1 solvent system of chloroform and methanol as an eluent to yield the end compound 3,4-dichlorophenethyl-N-methylamine (0.76 g).

1. extractionThe mixture was subjected to extraction with ethyl acetate
2. concentrationconcentrated under vacuum
3. dissolutionthe residue was dissolved in 50 ml of a solution of 40% methylamine in methanol
4. stirringthe solution was stirred overnight at room temperature
5. concentrationfollowed by concentration under vacuum