Sodium Azide → 3-Azido-1,3,4,5-tetrahydro-2H-1-benzazepin-2-one

Participants

Reaction Steps

To a solution of 36.7 g (128 mmol) of 3-Iodo-2,3,4,5-tetrahydro-1H-[1]-benzazapin-2-one in 200 mL of dimethylformamide was added 9.97 g (153 mmol) of sodium azide. After 3 h, the mixture was poured into 800 mL of ice water and the precipitate collected on a filter. After washing the solid successively with water, 3% aqueous sodium bisulfite, and water, the product was dried under vacuum to give 21.5 g (83%) of a tan powder. 1H NMR (300 MHz, CDCl3) d 8.91 (1H, bs), 7.4-7.0 (4H, m), 3.89 (1H, t, J=9 Hz), 2.97 (1H, m), 2.73 (1H, m), 2.52 (1H, m), 2.32 (1H, m).

Provenance & Evidence