Highly Reactive, General and Long-Lived Catalysts for Palladium-Catalyzed Amination of Heteroaryl and Aryl Chlorides, Bromides, and Iodides: Scope and Structure–Activity Relationships
作者:Qilong Shen、Tokutaro Ogata、John F. Hartwig
DOI:10.1021/ja077074w
日期:2008.5.1
chelating alkylphosphines for the amination of heteroaryl and aryl chlorides, bromides, and iodides. In the presence of this catalyst, aryl and heteroarylchlorides, bromides, and iodides react with many primary amines in high yields with part-per-million quantities of palladium precursor and ligand. Many reactions of primary amines with both heteroaryl and aryl chlorides, bromides, and iodides occur to
Nickel-Catalyzed Photoredox-Mediated Cross-Coupling of Aryl Electrophiles and Aryl Azides
作者:Mikhail O. Konev、T. Andrew McTeague、Jeffrey W. Johannes
DOI:10.1021/acscatal.8b02954
日期:2018.10.5
dual catalytic nickel/ruthenium system from aryl azides and arylelectrophiles. Photoreduction of the aryl azide is proposed to proceed through an arylnickel-azide complex, which upon reduction and loss of nitrogen, generates a nickel(III) species capable of facile reductive elimination to afford the desired C–N bond formation. A variety of functionalized (hetero)arylelectrophiles are shown to participate