Regioselective BF 3 ·Et 2 O-catalyzed C–H functionalization of indoles and pyrrole with reaction of α-diazophosphonates

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A regioselective synthesis of β-(3-indol)-β-aminophosphonates and β-(2-pyrrol)-β-aminophosphonates was developed through an intermolecular C–H insertion of α-diazophosphonates with indole and pyrrole derivatives catalyzed by BF 3 ·Et 2 O.