Formation and reactions of azepino[4,5-b]indoles: an unprecedented ozone reaction in the formation of novel benzo[c]naphthyridinones
作者:Scott G. Stewart、Emilio L. Ghisalberti、Brian W. Skelton、Charles H. Heath
DOI:10.1039/c003742g
日期:——
Herein we report the formation and interesting reactivity of several azepino[4,5-b]indole heterocycles. Initially, a key intramolecular Heck reaction is used to efficiently create the azepino[4,5-b]indole seven membered ring containing an exocyclic double bond. Treatment of the olefin with ozone results in an unprecedented secondary reaction of the Criegee intermediate, through intramolecular olefin trapping, to afford a benzo[c]naphthyridione containing a bridging cyclic peroxide.
在此,我们报告了几种氮杂环[4,5-b]吲哚杂环的形成和有趣的反应性。起初,一个关键的分子内赫克反应被用来有效地生成含有一个外环双键的氮杂环[4,5-b]吲哚七分子环。用臭氧处理烯烃后,通过分子内烯烃捕获,Criegee 中间体发生了前所未有的二级反应,生成了含有桥环过氧化物的苯并[c]萘二酮。