Evolution of Late Transition-Metal-Catalyzed Intermolecular Reductive Coupling Reaction of [60]Fullerene and N-Sulfonylaldimines: Competing Formation of Hydrobenzylated [60]Fullerenes and 1,2-Dihydrofullerene
作者:Venkatachalam Rajeshkumar、Shih-Ching Chuang
DOI:10.1002/ejoc.201200055
日期:2012.7
coupling of [60]fullerene with N-sulfonylaldimines to afford novel 1,2hydrobenzylated [60]fullerene derivatives. We found that both group VIIB metals (cobalt, rhodium, iridium) and group VIIIB metals (nickel, palladium, platinum) perform this coupling reaction. A control experiment in the absence of aldimines produced C60H2, which showed that the reaction might proceed via a [60]fullerene metal complex
Visible-light-driven photocatalyst-free deoxygenative alkylation of imines with alcohols
作者:Wei Zhang、Shen Ning、Yi Li、Xuesong Wu
DOI:10.1039/d2cc05098f
日期:——
visible-light-promoted deoxygenative alkylation of imines with alcohols assisted by carbon disulfide and tricyclohexylphosphine. The key to success of this method is the activation of alcohols upon the formation and direct photoexcitation of xanthate anions. This one-pot protocol enables the selective C–O bond homolysis of diverse primary, secondary and tertiaryalcohols to react with a variety of N-sulfonyl and N-aryl
Formation of N-sulfonyl imines from iminoiodinanes by iodine-promoted, N-centered radical sulfonamidation of aldehydes
作者:Megan D. Hopkins、Kristina A. Scott、Brettany C. DeMier、Heather R. Morgan、Jesse A. Macgruder、Angus A. Lamar
DOI:10.1039/c7ob02120h
日期:——
A mild and operationally convenient formation of synthetically valuable N-sulfonyl iminesfrom a range of aryl aldehydes by reaction with iminoiodinanes (PhINZ) and I2 has been developed. According to mechanistic experiments described within, the reaction is speculated to proceed through an unconventional light-promoted, N-centered radical (NCR) pathway involving a N,N-diiodosulfonamide reactive species
Amide Iridium Complexes As Catalysts for Transfer Hydrogenation Reduction of <i>N</i>-sulfonylimine
作者:Huiling Wen、Nianhua Luo、Qianheng Zhu、Renshi Luo
DOI:10.1021/acs.joc.0c02680
日期:2021.3.5
water-soluble amide iridium complexes-catalyzed transfer hydrogenation reduction of N-sulfonylimine is developed, which can be carried out under environmentally friendly conditions, affording a series of sulfonamide compounds in excellent yields (96–98%). In comparison with organic solvents, water is shown to be critical for a high catalytic transfer hydrogenation reduction in which the catalyst loading can