Nitric Acid → HCID 59150535, compound

Participants

Reaction Steps

Nitric acid (65%, 0.370 ml) was added dropwise with vigorous stirring to 1,1-dimethylethyl 7-hydroxy-6-methyl-1,2,4,5-tetrahydro-3H-3-benzazepine-3-carboxylate (600 mg) and silica gel (1.67 g) in DCM (5.7 ml) at −15° C. After 30 min a mixture of DCM/MeOH/conc.NH4OH: 10/3/1.5 was added and silica gel was filtered off. The solvent was evaporated under reduced pressure and the residue was purified on silica gel (ethyl acetate/petroleum ether: 15/85) obtaining the desired compound (470 mg, 67% yield).

Provenance & Evidence