Abstract

A Pd(II)-catalyzed dehydrogenative remote C4-H coupling of indoles with unfunctionalized arenes at room temperature was reported. The weak chelating trifluoroacetyl group at the C3-position served as a directing group for the remote C4-H activation. Arenes with a wide range of substituents were employed as the coupling partner in the dehydrogenative cross-coupling reaction.

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