Pyrrole-2-carboxaldehyde → HCID 71815639, compound

Participants

Reaction Steps

A catalytic amount of pyrrolidine (0.001 mmol) was added to a solution of 4-methoxy-N-(2-oxoindolin-4-ylcarbamoyl)benzamide (1 mmol) and pyrrole-2-carbaldehyde (1.2 mmol) in ethanol (5 mL). The reaction was carried out using microwave (CEM, Discover) at 100° C. (200 W. Standard mode) for 15 mins. Crude product was precipitated after cooling to RT, which was collected by filtration, washed with ethanol and air dried. YD: 65.57%; mp: Charred at 290-295° C. 1H NMR (DMSO-d6) 200 MHz, δ: 3.859 (s, 3H), 6.342-6.363 (m, 1H), 6.722-6.731 (m, 1H), 6.748 (d, J=7.6 Hz, 1H), 7.101 (d, J=9.2 Hz, 2H), 7.160 (t, J=8.0 Hz, 1H), 7.354 (br, 1H), 7.436 (d, J=8.0 Hz, 1H), 8.043 (s, 1H), 8.126 (d, J=8.8 Hz, 2H), 10.894 (s, 1H), 11.028 (s, 2H), 13.376 (s, 1H). (C22H18N4O4.1/2H2O) C, H, N. ESI-MS: m/z 400.9 [M−H]−.

Provenance & Evidence