Hydrochloric Acid → HCID 58997956, compound

Participants

Reaction Steps

To a solution of (2R,3S)-3-azido-2-phenyl-2,3-dihydro-1,5-benzoxazepin-4(5H)-one (64d) (1.128 g, 4.024 mmol)) in ethanol (80 mL) was added 1N hydrochloric acid (4.43 mL) and 5% palladium on carbon (60 mg). The reaction was purged with hydrogen and stirred for 2 h under a balloon of hydrogen. The reaction was purged with nitrogen then filtered through diatomaceous earth. The solvent was evaporated to afford a white solid that was then partitioned between ethyl acetate and saturated aqueous sodium bicarbonate while stirring. The organic phase was separated and the aqueous phase extracted an additional two times with ethyl acetate. The combined organic extracts were dried, filtered and evaporated to afford the title compound (973 mg, 95%) as an off-white solid. 1H NMR (300 MHz, DMSO-d6) δ1.36 (br, 2H), 3.93 (d, 1H, J=6.2 Hz), 5.45 (d, 1H, J=6.2 Hz), 7.06-7.22 (m, 4H), 7.32-7.46 (m, 5H), 9.96 (br, 1H). MS APCI, m/z=255 (M+1). LC/MS: 1.29 min.

Provenance & Evidence