Methanol → Phenyl isocyanate

Participants

Reaction Steps

N-(5-(2-Nitro-5-pyridyloxy)-1H-benzimidazol-2-yl)acetamide (Intermediate 7) was hydrogenated under an H2 atmosphere with Pd—C (10%) in MeOH. After the reaction was complete, the solid was filtered off, and the filtrate was evaporated to give intermediate 8 (47 mg, 17%): 1H NMR (DMSO-d6) δ 11.56 (brs, 1H) 7.51 (d, 1H), 7.32 (d, 1H), 7.05 (dd, 1H), 6.97 (d, 1H), 6.74 (dd, 1H), 6.70 (d, 1H), 5.02 (br s, 2H), 3.74 (s, 3H), 7.08 (d, 2H), 6.84 (d, 1H), 6.61 (d, 1H), 3.75 (s, 3H); MS m/e 284 (M+1).

Provenance & Evidence