The heterocycle-containing diarylmethane synthesis from chloromethyl(hetero)arenes with (hetero)arylboron reagents was attained using the palladium/ether-imidazolium chloride system. This coupling process tolerated a diverse range of heteroaromatic moieties with sufficient catalytic activity to achieve the efficient synthesis of various diheteroarylmethanes in good to excellent yields.
Reductant‐Free Cross‐Electrophile Synthesis of Di(hetero)arylmethanes by Palladium‐Catalyzed Desulfinative C−C Coupling
作者:Janette McKnight、Andre Shavnya、Neal W. Sach、David C. Blakemore、Ian B. Moses、Michael C. Willis
DOI:10.1002/anie.202116775
日期:2022.5.2
and a simple sulfinate transfer reagent. The reactions proceed by formation of an intermediate benzylic sulfinate, formed in situ, and deliver di(hetero)arylmethane products. The reactions use only commercial components, and no stoichiometric metal reductant is needed.
Herein, we disclose a mild and versatile nickel-catalyzed method for exclusive C3-selective thioetherification, alkylation, arylation, acylation, and phosphorylation of quinolines with a variety of electrophiles. Unactivated quinolines can be functionalized without directing groups at roomtemperature. Control experiments indicated that quinolines underwent 1,4-addition with nickel hydride species