Acetic Acid → HCID 57312355, compound

Participants

Reaction Conditions

Reaction Steps

To a round bottom flask was added 3-aminobenzamide (1.36 g, 10.0 mmol, 1.0 eq.), acetic acid (9.1 mL, 160 mmol, 16.0 eq.), triethyl orthoformate (5.4 mL, 32.0 mmol, 3.2 eq.), and sodium azide (0.812 g, 12.5 mmol, 1.25 eq.). The reaction mixture was then heated to 80° C. until all solids were dissolved. The reaction was stirred at 80° C. for an additional 2 h before cooling to RT. Water (6.0 mL,) was added, followed by 6N HCl (5.3 mL), and then 25% NaNO2 (2.1 mL). The resulting precipitate was filtered and rinsed with water to give pure tetrazole 38 (1.5 g, 80% yield). LC/MSD (HP Series 1100 MSD) MS (ES+) m/z 189.9 (M+H)+1, 187.9 (M−H)+1 1H-NMR, Varian 400 MHz (DMSO-d6) δ 10.1 (s, 1H), 8.39 (t, 1H), 8.20 (br. s, 1H), 8.05 (m, 2H), 7.72 (t, 1H), 7.55 (s, 1H) ppm.

Provenance & Evidence