Metal-Free Synthesis of C-4 Substituted Pyridine Derivatives Using Pyridine-boryl Radicals via a Radical Addition/Coupling Mechanism: A Combined Computational and Experimental Study
作者:Guoqiang Wang、Jia Cao、Liuzhou Gao、Wenxin Chen、Wenhao Huang、Xu Cheng、Shuhua Li
DOI:10.1021/jacs.7b00823
日期:2017.3.15
that the pyridine-boryl radical generated in situ using 4-cyanopyridine and bis(pinacolato)diboron could be used as a bifunctional "reagent", which serves as not only a pyridine precursor but also a borylradical. With the unique reactivity of such radicals, 4-substituted pyridine derivatives could be synthesized usingα,β-unsaturated ketones and 4-cyanopyridine via a novel radical addition/C-C coupling