Construction of a 4H-pyrido[4,3,2-gh]phenanthridin-5(6H)-one skeleton via a catalyst-free radical cascade addition/cyclization using azo compounds as radical sources
Zhang, C (Zhang, Chen)[ 1 ] ; Pi, JX (Pi, Junxia)[ 1 ] ; Chen, S (Chen, Shu)[ 1 ] ; Liu, P (Liu, Ping)[ 1 ] ; Sun, PP (Sun, Peipei)[ 1 ]*(孙培培)
[ 1 ] Nanjing Normal Univ, Coll Chem & Mat Sci, Jiangsu Prov Key Lab Mat Cycle Proc & Pollut Cont, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Nanjing 210023, Jiangsu, Peoples R China
ORGANIC CHEMISTRY FRONTIERS,201803,5(5),793-796
A new radical addition/cyano insertion/homolytic aromatic substitution cascade reaction initiated by the thermal homolysis of azo compounds to access polycyclic phenanthridine derivatives has been developed. Under the catalyst and oxidant free conditions, a broad range of N-arylacrylamides are compatible to afford the desired 4H-pyrido[4,3,2-gh]phenanthridin-5(6H)-one derivatives in moderate to high yields.
文章链接:
http://pubs.rsc.org/en/Content/ArticleLanding/2018/QO/C7QO00926G#!divAbstract
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