Nickel-catalyzed reductive allylation of aryl bromides with allylic acetates
作者:Xiaozhan Cui、Shulin Wang、Yuwei Zhang、Wei Deng、Qun Qian、Hegui Gong
DOI:10.1039/c3ob40232k
日期:——
This paper highlights Ni-catalyzed allylation of electron-rich aryl bromides with a variety of substituted allyliccarbonates using zinc as the terminal reductant, affording E-alkenes regioselectively in good to excellent yields by the addition of aryl to the less hindered allylic carbon. The electron-deficient aryl bromides and chlorides are also highly efficient coupling partners.
Silver-promoted cross-coupling of substituted allyl(trimethyl)silanes with aryl iodides by palladium catalysis
作者:Zhen-Lin Hou、Fan Yang、Zhibing Zhou、Yu-Fei Ao、Bo Yao
DOI:10.1016/j.tetlet.2018.11.026
日期:2018.12
A ligand-free Pd-catalyzedcross-coupling of substituted allyl(trimethyl)silanes with aryl iodides enabled by silver salts was developed. This reaction delivered allylic arenes chemoselectively and regioselectively. The study suggested that the reaction might proceed through oxidative addition of ArI to Pd(0) followed by halide abstraction to give an electrophilic complex ArPdX, which further reacted