A palladium-catalyzed oxidative arylalkylation of unactivated alkenes involving dual C–H bond cleavage of arene and acetonitrile was developed. This reaction was promoted by pyridine as a ligand, and the ratio of palladium to pyridine is vital for this transformation. A series of nitrile-containing indolines were efficiently provided in moderate to good yields.
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Liu et al. (2012) studied this question.