P-Toluenesulfonylhydrazide → HCID 117833149, compound

Participants

Reaction Steps

p-Toluenesulfonyl hydrazine (6.37 g, 34.2 mmol) was added to a benzene solution (115 ml) of N-tert-butoxycarbonyl-1,5-dimethyl-9-azabicyclo[3.3.1]nonan-3-one (3.04 g, 11.4 mmol), and the mixture was heated under reflux for 6 h with a Dean-Stark device. After adding saturated sodium bicarbonate water under ice-cooled condition, the ice-cooled reaction liquid was extracted with ethyl acetate, washed with saturated brine, and dried over magnesium sulfate. After concentration under reduced pressure, the residue was purified by silica gel column chromatography to give N-tert-butoxycarbonyl-1,5-dimethyl-3-(tosylhydrazono)-9-azabicyclo[3.3.1]nonane (3.07 g, 62%).

Provenance & Evidence