HCID 178420399, compound → HCID 21272317, compound

Participants

Reaction Steps

Manganese dioxide (2.5 g) was added portionwise over 10-15 minutes to a solution of the product of step (a) (3.43 g) in dichloromethane (300 ml) stirred at room temperature. After stirring for an additional 30 minutes at room temperature, the reaction mixture was filtered, solvent was removed and the resulting gum was chromatographed on silica gel eluting with dichloromethane: ethyl acetate (95:5) to give the title compound (2.45 g) mp 145°-146°.

Provenance & Evidence