Ammonia → N-(10)-Ethylquinazoline

Participants

Reaction Conditions

Reaction Steps

N-(2-Formyl-phenyl)-propionamide (1.65 g, 9.3 mmol) was combined with ammonia (24 mL, 2M solution in methanol) in a flask fitted with a condenser and stopper with a needle to vent. The reaction was heated to 100° C. for 1 day. The reaction mixture was concentrated in vacuo to yield the crude product as an orange oil (1.47 g, 100%). This product was used without further purification. 1H NMR (400 MHz, CDCl3) δ 9.36 (s, 1H), 7.99 (d, J=10.0 Hz, 1H), 7.89 (m, 2H), 7.60 (t, J=8.1 Hz, 1H), 3.16 (q, J=7.6 Hz, 2H), 1.47 (t, J=7.6 Hz, 3H); HPLC ret. time 0.61 min, 10-99% CH3CN, 5 min run; ESI-MS m/z 159.0 (MH+).

Provenance & Evidence