Iron-Catalyzed Regioselective Transfer Hydrogenative Couplings of Unactivated Aldehydes with Simple Alkenes
作者:Yan-Long Zheng、Yan-Yao Liu、Yi-Mei Wu、Yin-Xia Wang、Yu-Tong Lin、Mengchun Ye
DOI:10.1002/anie.201602130
日期:2016.5.17
An FeBr3‐catalyzed reductive coupling of various aldehydes with alkenes that proceeds through a direct hydride transfer pathway has been developed. With iPrOH as the hydrogen donor under mild conditions, previously challenging coupling reactions of unactivated alkyl and aryl aldehydes with simple alkenes, such as styrene derivatives and α‐olefins, proceeded smoothly to furnish a diverse range of functionalized
Organocatalytic reductive coupling of aldehydes with 1,1-diarylethylenes using an <i>in situ</i> generated pyridine-boryl radical
作者:Jia Cao、Guoqiang Wang、Liuzhou Gao、Xu Cheng、Shuhua Li
DOI:10.1039/c7sc05225a
日期:——
reductive couplingreaction of aldehydes with 1,1-diarylethylenes has been established via a combination of computational and experimental studies. Density functional theory calculations and control experiments suggest that the ketyl radical from the addition of the pyridine-boryl radical to aldehydes is the key intermediate for this C–C bond formation reaction. This metal-free reductive coupling reaction
Iron-Catalyzed C(sp<sup>3</sup>)C(sp<sup>3</sup>) Bond Formation through C(sp<sup>3</sup>)H Functionalization: A Cross-Coupling Reaction of Alcohols with Alkenes
作者:Shu-Yu Zhang、Yong-Qiang Tu、Chun-An Fan、Fu-Min Zhang、Lei Shi
DOI:10.1002/anie.200903960
日期:2009.11.2
Synthetic convenience: A wide range of substrates proved to be well tolerated by the novel title transformation. This protocol provides an economical and convenient strategy for the efficient access to structurally diverse secondary alcohols (see scheme).
Tunable differentiation of tertiary C–H bonds in intramolecular transition metal-catalyzed nitrene transfer reactions
作者:Joshua R. Corbin、Jennifer M. Schomaker
DOI:10.1039/c7cc01235g
日期:——
Metal-catalyzed nitrenetransfer reactions are an appealing and efficient strategy for accessing tetrasubstituted amines through the direct amination of tertiary C-H bonds.