Pd(0)-Catalyzed 1,1-Diarylation of Ethylene and Allylic Carbonates
作者:Vaneet Saini、Longyan Liao、Qiaofeng Wang、Ranjan Jana、Matthew S. Sigman
DOI:10.1021/ol4023358
日期:2013.10.4
An efficient protocol for the one-step synthesis of biologically relevant 1,1-diarylalkanes has been described. This reaction introduces two different aryl groups across the terminal end of simple feedstock alkenes such as ethylene and allylic carbonates. The propensity to generate pi-benzylpalladium intermediates dictates the exclusive 1,1-regioselectivity observed in the product.
Nickel‐Catalyzed Chain‐Walking Cross‐Electrophile Coupling of Alkyl and Aryl Halides and Olefin Hydroarylation Enabled by Electrochemical Reduction
novel route to afford 1,1-diarylalkane derivatives from simple and readily available alkyl and aryl halides in good yields and excellent regioselectivities under mild conditions. The procedure shows good tolerance for a broad variety of functional groups and both primary and secondary alkyl halides can be used. Furthermore, the reaction was successfully scaled up to the multigram scale proving the