Potassium Iodide → HCID 18982833, compound

Participants

Reaction Steps

A mixture of 5-(chloroacetyl)-2(1H,3H)-indolone (2.05 g, 9.78 mmol), 4-hydroxy-4-benzylpiperidine (1.87 g, 9.78 mmol), potassium carbonate (2.97 g, 21.49 mmol), and potassium iodide (0.08 g, 0.48 mmol) in acetonitrile (200 ml) was refluxed overnight. The reaction was cooled and filtered through a celite pad. The filtrate was concentrated to give an orange foam which was flash chromatographed on silica gel with ethyl acetate elution. This afforded 0.79 g of oily yellow solid product. NMR 9.41 (br s, 1H), 7.91 (d, J=8 Hz, 1H), 7.86 (s, 1H), 7.28-7.14 (m, 5H), 6.90 d, J=8 Hz, 1H), 3.76 (s, 2H), 3.52 (s, 2H), 2.78-2.73 (m, 4H), 2.43 {t, J=10.5 Hz, 2H}, 1.86-1.76 (m, 2H), 1.50 (br d, J=12 Hz, 2H), 1.36 (br s, 1H). IR(KBr) 2920, 2815, 1710, 1685, 1615, 1240, 1115. FAB HRMS calcd for C22H25N2O3 (MH+): 365.1867. Observed m/e: 365.1883.

Provenance & Evidence