5-Methoxyisatin → HCID 178487247, compound

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Reaction Steps

The title compound was prepared from 5-methoxy-1H-indole-2,3-dione (Gassman, et al., Journal of Organic Chemistry 1977, 42, 1344-8) and 4-hydrazinobenzenesulfonamide hydrochloride according to Procedure G: mp>250° C.; 1H NMR (DMSO-d6): δ 3.80 (s, 3H), 6.87 (s, 2H), 7.20 (s, 1H), 7.28 (s, 2H), 7.60 (d, J=8.8 Hz, 2H), 7.81 (d, J=8.8 Hz, 2H), 10.93 (s, 1H), 12.85 (s, 1H); APCI−MS m/z 344.9 (M−H)−.

Provenance & Evidence