Oxindole → (3E)-3-(1H-indazol-6-ylmethylidene)-1H-indol-2-one

Participants

Reaction Steps

The title compound was synthesized according to the method described for (E)-3-((1H-indazol-5-yl)methylene)indolin-2-one except reacting oxindole (67 mg, 0.216 mmol) with 1H-indazole-6-carbaldehyde (73 mg, 0.238 mmol) to obtain 32 mg, 51%. 1H NMR (400 MHz, CD3OD) δ 8.14 (s, 1H), 7.91 (d, J=8.5 Hz, 1H), 7.89 (s, 2H), 7.65 (d, J=7.6 Hz, 1H), 7.47 (d, J=8.4 Hz, 1H), 7.25 (t, J=7.7 Hz, 1H), 6.93 (d, J=7.8 Hz, 1H), 6.87 (t, J=7.6 Hz, 1H); MS ESI 262.0 [M+H]+, calcd for [C16H11N3O+H]+262.10.

Provenance & Evidence