Selective and catalytic carbon dioxide and heteroallene activation mediated by cerium N-heterocyclic carbene complexes

Abstract

A series of rare earth complexes of the form Ln(L^R)₃ supported by bidentate ortho-aryloxide–NHC ligands are reported (L^R = O(o-C₆H₂–^tBu₂-2,6-CN(C₂H₂)NR); R = ⁱPr, ^tBu, Mes; Ln = Ce, Sm, Eu).