Visible-light-promoted synthesis of phenanthridines via an intermolecular isocyanide insertion reaction
作者:Hui Zhou、Xin Zhao Deng、Ai Hua Zhang、Ren Xiang Tan
DOI:10.1039/c6ob02113a
日期:——
conditions. The reaction was shown to proceed through an electron transfer sequence by mechanistic experiments, and thus enabled the efficient production of 24 compounds, each with one new intramolecular aromatic ring obtained. The synthesized compounds were tested to embody good antitumor, antimicrobial and neuraminidase inhibitory activities.
Synthesis of Isoxazoline-Functionalized Phenanthridines via Iminoxyl Radical-Participated Cascade Sequence
作者:Xiu-Long Yang、Fei Chen、Neng-Neng Zhou、Wei Yu、Bing Han
DOI:10.1021/ol503335k
日期:2014.12.19
Readily accessible β,γ-unsaturated ketoximes reacted with 2-arylphenylisonitriles under the conditions of t-BuOOH and n-Bu4NI to give isoxazoline functionalized phenanthridines via tandem intramolecular/intermolecular C–O/C–C/C–C bond formation. The reaction involves the initial generation of iminoxyl radicals from the oxidation of β,γ-unsaturated ketoximes by t-BuOOH and n-Bu4NI followed a cascade