Reductive addition to electron-deficient olefins with trivalent iodine compounds
作者:Hideo Togo、Masahiko Aoki、Masataka Yokoyama
DOI:10.1016/s0040-4020(01)88042-x
日期:1993.9
(Diacyloxyiodo)arene was treated with electron-deficientolefins in the presence of hydrogen donor such as 1,4-cyclohexadiene to give the reductive addition products via alkyl radical through the radical decarboxylative pathway in good yields. Moreover, this system was able to generate either alkoxycarbonyl radicals or alkyl radicals with [bis(alkoxyoxalyloxy)iodo]benzene, which was prepared from alcohol
Silylated Cyclohexadienes as New Radical Chain Reducing Reagents: Preparative and Mechanistic Aspects
作者:Armido Studer、Stephan Amrein、Florian Schleth、Tobias Schulte、John C. Walton
DOI:10.1021/ja0341743
日期:2003.5.1
superior tin hydride substitutes for the conduction of various radical chain reductions. Debrominations, deiodinations, and deselenations can be performed using these environmentally benign reagents. Furthermore, Barton-McCombie-type deoxygenations using silylated cyclohexadienes are described. Radical cyclizations, ring expansions, and Giese-type addition reactions with the new tin hydride substitutes
Reductive Addition of Alkyl Radical to Phenyl Vinyl Sulfone
作者:Hideo Togo、Masahiko Aoki、Masataka Yokoyama
DOI:10.1246/cl.1992.2169
日期:1992.11
Radicals generated from (diacyloxyiodo)benzene readily added to phenyl vinylsulfone to give 2-alkylethyl phenyl sulfone in the presence of a hydrogen donor such as 1,4-cyclohexadiene, 1,3-dioxolane, or triethylsilane. Among these donors, 1,4-cyclohexadiene was the most effective.