3,3-dimethyldioxirane in dichloromethane; acetone 48 h; Ambient temperature;

3,3-dimethyldioxirane in dichloromethane; acetone 48 h; Ambient temperature;

1: 1.) NaH / 1.) DMF, room temperature, 2 h, 2.) room temperature, 4 h 2: 0.72 g / 50percent AcOH / H2O / 2 h / 80 °C 3: 1.) dibutyltin oxide, 2.) tetrabutylammonium iodide / 1.) benzene, reflux, 16 h, 2.) reflux, 24 h View Scheme

1: 1.) NaH / 1.) DMF, room temperature, 2 h, 2.) room temperature, 4 h 2: 0.77 g / 50percent AcOH / H2O / 2 h / 80 °C 3: 1.) dibutyltin oxide, 2.) tetrabutylammonium iodide / 1.) benzene, reflux, 16 h, 2.) reflux, 4 h View Scheme