<i>N</i>,<i>N</i>-Dimethylformamide-stabilised palladium nanoparticles combined with bathophenanthroline as catalyst for transfer vinylation of alcohols from vinyl ether
We report N,N-dimethylformamide-stabilised Pd nanoparticle (Pd NP)-catalysed transfervinylation of alcohols fromvinyl ether. Pd NPs combined with bathophenanthroline exhibited high catalytic activity. This reaction proceeded with low catalyst loading and the catalyst remained effective even after many rounds of recycling. The observation of the catalyst using transmission electron microscopy and
Asymmetric alkylation of N-sulfonylbenzamides with vinyl ethers via a directed C-H bond activation gave high yields of the corresponding addition products with high branch- and enantioselectivity.
The Morita–Baylis–Hillman reaction for non-electron-deficient olefins enabled by photoredox catalysis
作者:Long-Hai Li、Hao-Zhao Wei、Yin Wei、Min Shi
DOI:10.1039/d1sc06784b
日期:——
Morita–Baylis–Hillman (MBH) reaction, which is only applicable to electron-deficient olefins, has been achieved via visible-light induced photoredox catalysis in this report. A series of non-electron-deficient olefins underwent the MBH reaction smoothly via a novel photoredox-quinuclidine dual catalysis. The in situ formed key β-quinuclidinium radical intermediates, derived from the addition of olefins with quinuclidinium