Ethanol → HCID 178465994, compound

Participants

Reaction Steps

To a solution of 3-phenyl-1H-pyrazol-5(4H)-one (1.0 g, 6.24 mmol), ethanol (0.288 g, 6.24 mmol) and triphenylphosphine (1.638 g, 6.24 mmol) in N-methylmorpholine (7 mL) was added diethylazo dicarboxylate (0.988 mL, 6.24 mmol) dropwise at 0° C. The reaction was warmed to room temperature and stirred for 2 h. The reaction was poured into H2O and extracted with ethyl acetate. The extract was dried over MgSO4 and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (0.89 g). LCMS m/z=189.19 [M+H]+; 1H NMR (400 MHz, DMSO-d6) δ ppm 1.32 (t, J=4.2 Hz, 3H), 4.32 (q, J=4.2 Hz, 2H), 6.45 (s, 1H), 7.41-7.94 (m, 5H), 11.3 (s, 1H).

Provenance & Evidence