Rh(III)-catalyzed chemoselective C–H functionalizations of tertiary aniline N-oxides with alkynes

In this work, we report novel Rh(III)-catalyzed chemoselective functionalizations of tertiary aniline N-oxides with alkynes, including annulation via the sequential C(sp2)–H and C(sp3)–N activation for the formation of N-alkylindoles and an O-atom transfer (OAT) process for the synthesis of acetophenones.