反应详情

The alcohol (40) (1.73 g, 2.41 mmol) was dissolved in ether (200 ml) at 30° C. and treated with chromic acid (4 ml of a 0.67M solution; 2.68 mmol). The resulting solution was allowed to stir and cool to room temperature over two hours during which time two further 1 ml portions of chromic acid were added. Propan-2-ol (5 ml) was then added and the ethereal solution washed with water four times, then dried, filtered and evaporated to leave the title compound (41) as a white powder (1.57 g; 89%).

1. additionwere added
2. washthe ethereal solution washed with water four times
3. customdried
4. filtrationfiltered
5. customevaporated