Epoxides are invaluable substrates for complex molecule synthesis owing to their ready accessibility from alkene-and carbonyl-containing chemical feedstocks and their proclivity toward ring opening by a variety of nucleophiles.[1] Despite recent advances, reactions with carbon-centered nucleophiles are typically limited to the use of stabilized carbanions, strong organometallic reagents, or π-rich arenes.[2] The identification of a catalyst system ...