Electrooxidative B−H Functionalization of
<i>nido</i>
‐Carboranes
作者:Meng Chen、Deshi Zhao、Jingkai Xu、Chunxiao Li、Changsheng Lu、Hong Yan
DOI:10.1002/anie.202015299
日期:2021.3.29
of nido‐carboranes (7,8‐nido‐C2B9H12−) has been developed under electrochemical reaction conditions. In this reaction system, anodic oxidation serves as a green alternative for traditional chemical oxidants in the oxidation of nido‐carboranes. No transition‐metal catalyst is required and different heteroatoms bearing a lone pair are reactive in this transformation. Coupling nido‐carboranes with thioethers
organoselenium compounds designed by fusing the anticancer agent methyl(phenyl)selane into the tubulin polymerization inhibitors isocombretastatins or phenstatins were synthesized and evaluated for antiproliferative activity. Most of these selenium containing hybrids exhibited potent cytotoxicity against a panel of cancel cell lines, with IC50 values in the submicromolar concentration range. Among them
Metal‐Free Synthesis of Selenodihydronaphthalenes by Selenoxide‐Mediated Electrophilic Cyclization of Alkynes
作者:Shaoyu An、Zhong Zhang、Pingfan Li
DOI:10.1002/ejoc.202100423
日期:2021.6.7
A metal-free, one-pot selenium mediated electrophiliccyclization reaction of alkynes and triflic anhydride-activated selenoxides was realized, giving selenium containing dihydronaphthalene products, including selenium-substituted phenanthrene, dihydroquinoline, 2H-chromene, and coumarin.
An electrochemical method for deborylative selenylation of arylboronic acids under metal- and oxidant-free conditions
作者:Zhengjiang Fu、Jian Yin、Dongdong He、Xuezheng Yi、Shengmei Guo、Hu Cai
DOI:10.1039/d1gc02962b
日期:——
An efficient protocol to synthesize aryl selenoethers through deborylative selenylation of widely available arylboronicacids has been established underelectrochemicalconditions in the absence of metal catalyst and external oxidant. The synthesis of bioactive molecules and gram-scale transformation have been performed to highlight the synthetic utility of the protocol. CV (cyclic voltammetry) experiment