Expedient Ni(OTf) 2 /visible light photoredox-catalyzed annulation of donor-acceptor cyclopropanes with cyclic secondary amines.
Pallab KarjeeManmath MishraBijoy DebnathTharmalingam PunniyamurthyPublished in: Chemical communications (Cambridge, England) (2022)
The annulative coupling of donor-acceptor cyclopropanes with cyclic secondary amines is reported using the combination of Ni(OTf) 2 and visible light assisted eosin Y catalysis for tandem C-N and C-C bond formation. The reaction sequence provides a potential synthetic tool for the construction of pyrrolotetrahydroisoquinolines.