(S)-tert-Butyl 5-azido-7-methyl-8-trifluoromethyl-2,3,4,5-tetrahydrobenzo[b]azepine-1-carboxylate → (S)-tert-Butyl 5-amino-7-methyl-8-(trifluoromethyl)-2,3,4,5-tetrahydro-1H-benzo[b]azepine-1-carboxylate

Participants

Reaction Steps

Shake a mixture of (S)-tert-butyl 5-azido-7-methyl-8-trifluoromethyl-2,3,4,5-tetrahydrobenzo[b]azepine-1-carboxylate (1.44 g, 3.89 mmol) and 5% palladium on charcoal (0.15 g, 50% wet) in methanol (50 mL) under 20 psi of hydrogen in a Parr bottle at room temperature for 12 h. Filter the mixture through Celite® and remove the solvents under reduced pressure to provide the title compound as a colorless oil (1.30 g, >99%), which is used in the next step without further purification. APCI MS m/z 344 (M+H)+.

Provenance & Evidence