Merging shuttle reactions and paired electrolysis for reversible vicinal dihalogenations
作者:Xichang Dong、Johannes L. Roeckl、Siegfried R. Waldvogel、Bill Morandi
DOI:10.1126/science.abf2974
日期:2021.1.29
shuttle (e-shuttle) paradigm for the facile and scalable interconversion of alkenes and vicinal dihalides, a class of reactions that can be used both to synthesize useful dihalogenated molecules from simple alkenes and to recycle waste material through retro-dihalogenation. The reaction is demonstrated using 1,2-dibromoethane, as well as 1,1,1,2-tetrachloroethane or 1,2-dichloroethane, to dibrominate or
Anodically Coupled Electrolysis for the Heterodifunctionalization of Alkenes
作者:Ke-Yin Ye、Gisselle Pombar、Niankai Fu、Gregory S. Sauer、Ivan Keresztes、Song Lin
DOI:10.1021/jacs.7b13387
日期:2018.2.21
Herein, we discuss the strategic use of anodically coupled electrolysis, an electrochemical process that combines two parallel oxidative events, as a complementary approach to existing methods for redox organic transformations. Specifically, we demonstrate anodically coupled electrolysis in the regio- and chemoselective chlorotrifluoromethylation of alkenes.
Electrocatalytic Radical Dichlorination of Alkenes with Nucleophilic Chlorine Sources
作者:Niankai Fu、Gregory S. Sauer、Song Lin
DOI:10.1021/jacs.7b09388
日期:2017.11.1
alkenes with MgCl2 as the chlorine source. This method provides operationally simple, sustainable, and efficient access to a variety of vicinally dichlorinated compounds. In particular, alkenes with oxidatively labile functional groups, such as alcohols, aldehydes, sulfides, and amines, were transformed into the desired vicinal dichlorides with high chemoselectivity. Mechanistic data are consistent with
Mn-Catalyzed Electrochemical Chloroalkylation of Alkenes
作者:Niankai Fu、Yifan Shen、Anthony R. Allen、Lu Song、Atsushi Ozaki、Song Lin
DOI:10.1021/acscatal.8b03209
日期:2019.1.4
The heterodifunctionalization of alkenes is an efficient method for synthesizing highly functionalized organic molecules. In this report, we describe the use of anodically coupled electrolysis for the catalytic chloroalkylation of alkenes—a reaction that constructs vicinal C–C and C–Cl bonds in a single synthetic operation—from malononitriles or cyanoacetates and NaCl. Knowledge of the persistent radical
Three-Component Chlorophosphinoylation of Alkenes via Anodically Coupled Electrolysis
作者:Lingxiang Lu、Niankai Fu、Song Lin
DOI:10.1055/s-0039-1689934
日期:2019.6
chlorophosphinoylation of simple alkenes. Driven by electricity and mediated by a Mn catalyst, the heterodifunctionalization reaction takes place with high efficiency and regioselectivity. Cyclic voltammetry data are consistent with a mechanistic scenario based on anodically coupled electrolysis in which the generation of two distinct radical intermediates occur simultaneously on the anode and are both mediated