Synthesis of Chromeno[2,3-<i>b</i>]indol-11(6<i>H</i>)-one via PhI(OAc)<sub>2</sub>-Mediated Intramolecular Oxidative C(sp<sup>2</sup>)–N(H<sub>2</sub>) Bond Formation
作者:Jiyun Sun、Daisy Zhang-Negrerie、Yunfei Du、Kang Zhao
DOI:10.1021/jo502276b
日期:2015.1.16
Various chromeno[2,3-b]indol-11(6H)-ones were conveniently constructed via phenyliodine(III) diacetate (PIDA)-mediated intramolecular oxidative annulation. This method, while realizing a direct oxidative CN bond formation between an aromatic ring and a pendent free-NH2 moiety, features a metal-free protocol, mild reaction conditions, simple workup, and the ready availability of the starting substrates.