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
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.
Visible-Light-Mediated Decarboxylative Tandem Carbocyclization of Acrylamide-Attached Alkylidenecyclopropanes: Access to Polycyclic Benzazepine Derivatives
作者:Xiao-Yu Zhang、Chao Ning、Yong-Jie Long、Yin Wei、Min Shi
DOI:10.1021/acs.orglett.0c01856
日期:2020.7.2
A visible-light-mediated decarboxylative tandem carbocyclization of acrylamide-tethered alkylidenecyclopropanes with phenyliodine(III) diacetate and various aliphatic acids has been reported in this paper. An alkyl radical in situ generated fromphenyliodine(III) dicarboxylates upon visible-light irradiation catalyzed by fac-Ir(ppy)3 adds to the less hindered central carbon of alkylidenecyclopropane
Facile radical decarboxylative alkylation of heteroaromatic bases using carboxylic acids and trivalent iodine compounds
作者:Hideo Togo、Masahiko Aoki、Masataka Yokoyama
DOI:10.1016/0040-4039(91)80221-q
日期:1991.11
easily alkylated by the reaction of carboxylicacids with [bis(trifluoroacetoxy)iodo]benzene or [bis(trifluoroacetoxy)iodo]pentafluorobenzene via radical decarboxylative pathways. This system was further applied to the reaction with tetrahydrofurylcarboxylic acid, 1-(2,3,5-tri-O-benyl)-D-ribofuranosylacetic acid, and 1-(2,3,5-tri-O-benzyl)-D-ribofuranosylcarboxylic acid for the model synthesis of C-nucleosides