Nickel‐Catalyzed Chain‐Walking Cross‐Electrophile Coupling of Alkyl and Aryl Halides and Olefin Hydroarylation Enabled by Electrochemical Reduction
作者:Gadde Sathish Kumar、Anatoly Peshkov、Aleksandra Brzozowska、Pavlo Nikolaienko、Chen Zhu、Magnus Rueping
DOI:10.1002/anie.201915418
日期:2020.4.16
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
开发了第一种用于镍催化的交叉亲电子偶联的电化学方法。该方法提供了一种新颖的途径,可以在温和的条件下,以简单的,容易获得的烷基和芳基卤化物以良好的收率和优异的区域选择性来制备1,1-二芳基烷烃衍生物。该方法显示出对多种官能团的良好耐受性,并且可以使用伯烷基卤和仲烷基卤。此外,该反应已成功扩大到数克规模,证明了其在工业应用中的潜力。机理研究表明,在电还原链走芳基化反应中形成了氢化镍,这导致了新的苯乙烯催化的镍催化加氢芳基化反应的进一步发展,提供了一系列1,