Manganese‐Catalyzed ortho‐Alkenylation of Aromatic Amidines with Alkynes via C−H Activation

Abstract The first ortho ‐alkenylation of aromatic amidines with alkynes was realized by earth‐abundant manganese catalysis through C−H activation. A catalytic amount of PhMgBr was found essential for improved efficiency of this transformation. Wide tolerance of functional groups and excellent E / Z selectivity highlighted the current protocol.