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Substrate scope for palladium catalyzed acetoxylation of indolines. Conditions: Pd(OAc)2 (15 mol %),PhI(OAc) (2.5 equiv), Ac O–AcOH (1:10, v/v), 100 °C, O, 7–8 h. Yields are average of two independent runs. a See reference 8. b Isolated yield on 1 mmol scale. c C5-acetoxylated regioisomer isolated in 28% yield, see equation 1.
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