反应详情

60 g. of the alcohol prepared according to paragraph (b) above, 700 g. of MnO2 and 1800 ml. of CH2Cl2 were stirred for 2 days at 20°-25°. After filtration and evaporation, the distillation of the residue gave 49 g. of crude ketone, b.p. 70°-75°/0.1 Torr, which was purified by vapour phase chromatography using a "20 M Carbowax" column and helium carrier at 140°. nD20 =1.5041; d420 =0.8958.

1. filtrationAfter filtration and evaporation
2. distillationthe distillation of the residue
3. customgave 49 g
4. customof crude ketone, b.p. 70°-75°/0.1 Torr, which was purified by vapour phase chromatography
5. customat 140°