反应详情

A solution of (6-bromo-pyridin-2-yl)-methanol (3.37 g, 17.9 mmol) (H. Tsukube et al., J. Org. Chem., 1993, 58, 4389), triphenylphosphine (5.17 g, 19.7 mmol) and phtalimide (2.90 g, 19.7 mmol) in THF was cooled in an ice bath. A solution of diethylazodicarboxylate (3.43 g, 19.7 mmol) in THF (15 ml) was added slowly and the mixture was left to reach rt. Stirring was continued for 17 hr, then the solvent was distilled off and the residue chromatographed (SiO2 with hexane/AcOEt=4/1) to provide 3.42 g (66%) of the title compound as a colorless viscous oil. MS: m/e=316 (M+H+).

1. waitthe mixture was left
2. customto reach rt
3. distillationthe solvent was distilled off
4. customthe residue chromatographed (SiO2 with hexane/AcOEt=4/1)