Iron–Nickel Dual-Catalysis: A New Engine for Olefin Functionalization and the Formation of Quaternary Centers
作者:Samantha A. Green、Suhelen Vásquez-Céspedes、Ryan A. Shenvi
DOI:10.1021/jacs.8b05868
日期:2018.9.12
electron-deficient arenes, including Lewis basic heterocycles. Here we report a highly Markovnikov-selective, dual-catalytic olefin hydroarylation that tolerates arenes and heteroarenes of any electronic character. Hydrogen atom transfer controls the formation of branched products and arene halogenation specifies attachment points on the aromatic ring. Mono-, di-, tri-, and tetra-substituted alkenes yield Markovnikov
Reductive Cross-Coupling of Nonaromatic, Heterocyclic Bromides with Aryl and Heteroaryl Bromides
作者:Gary A. Molander、Kaitlin M. Traister、Brian T. O’Neill
DOI:10.1021/jo500905m
日期:2014.6.20
Reductive cross-coupling allows the directC–Cbond formation between two organic halideswithout the need for preformation of an organometallic reagent. A method has been developed for the reductive cross-coupling of nonaromatic, heterocyclic bromides with aryl or heteroaryl bromides. The developed conditions use an air-stable Ni(II) source in the presence of a diamine ligand and a metal reductant