Benzaldehyde → HCID 13098806, compound

Participants

Reaction Steps

A mixture of N-methyl-N-[3,4-(methylenedioxy)phenyl]urea (240 mg), benzaldehyde (140 μL) and methanesulfonic acid (50 μL) and toluene (60 mL) was refluxed for 2 h in a flask equipped with a Dean-Stark water separator. After cooling, the solution was washed with water thoroughly, dried over Na2SO4 and concentrated in vacuo. The resulting solid was recrystallized from chloroform/hexane to provided the title compound as a tan solid (70 mg, 20%), mp: 228-230° C. 1H NMR (CDCl3): 7.37-7.30 (m, 5H), 6.53 (s, 1H), 6.28 (s, 1H), 5.91 (d, 1H, J=1.4), 5.89 (d, 1H, J=1.4), 5.46 (s, 1H), 5.11 (br s, 1H), 3.33 (s, 3H). Anal. calcd. for C16H14N2O3: C, 68.08; H, 5.00; N, 9.92. Found: C, 68.06; H, 4.91; N, 9.71.

Provenance & Evidence