m-Chloroperbenzoic acid → 3-Bromo-5-(5-fluoroindoline-1-carbonyl)-pyridine-1-oxide

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Reaction Steps

0.19 g (1.1 mmol) m-chloroperbenzoic acid were added to 0.32 g (0.98 mmol) (5-bromo-pyridin-3-yl)-(5-fluoro-2,3-dihydro-indol-1-yl)-methanone in 5.0 mL DCM and the mixture was stirred for 4 h at RT. In addition, a further 95 mg (0.55 mmol) m-chloroperbenzoic acid were added to the reaction mixture and it was stirred for 48 h at RT. Then the reaction mixture was diluted with DCM and extracted with 1N aqueous sodium hydroxide solution. The organic phase was dried on sodium sulphate, evaporated down and dried under HV.

Provenance & Evidence