反应详情

To a solution of 5.5 g of 1-(4-cyanophenyl)-4-hydroxymethyl-piperidine and 5.16 g of triethylamine in 150 ml of methylene chloride, 5.84 g of methanesulphonic acid chloride are slowly added dropwise at ambient temperature and with stirring. After it has all been added the mixture is left to stand overnight and the solvent is removed under reduced pressure. The residue is chromatographed with methylene chloride/methanol (50:1) over silica gel. Yield: 6.95 g (93% of theory), Mass spectrum: (M+H)+ =295

1. additionall been added the mixture
2. waitis left
3. customthe solvent is removed under reduced pressure
4. customThe residue is chromatographed with methylene chloride/methanol (50:1) over silica gel