1-Isopropyl-1H-indole-2,3-dione → HCID 86731082, compound

Participants

Reaction Steps

Intermediate 19 was prepared as a white powder following the procedure described for Intermediate 16 by replacing indoline-2,3-dione with 1-isopropylindoline-2,3-dione. 1H NMR (400 MHz, chloroform-d) δ ppm 8.10 (1 H, br. s.), 7.77 (1 H, d, J=7.8 Hz), 7.60 (1 H, d, J=8.3 Hz), 7.42 (1 H, t, J=7.7 Hz), 7.27 (1 H, t, J=7.5 Hz), 4.53 (2 H, q, J=7.1 Hz), 1.45 (3 H, t, J=7.1 Hz). LC-MS (ESI) m/z 276.0 (M+H), RT=1.93 min (Method B)

Provenance & Evidence