Hypervalent Iodine(III) Promoted Direct Synthesis of Imidazo[1,2-<i>a</i>]pyrimidines
作者:Guangyin Qian、Bingxin Liu、Qitao Tan、Siwen Zhang、Bin Xu
DOI:10.1002/ejoc.201402456
日期:2014.8
An efficient and mild synthesis of imidazo[1,2-a]pyrimidine derivatives has been developed from readily available pyrimidyl arylamines or enamines through a hypervalent iodine-promoted intramolecular C–H bond cycloamination reaction. This protocol allows for the facile construction of biologically active bicyclic imidazo[1,2-a]pyrimidine skeletons as well as other imidazo[1,2-a]-type fused heterocycles
已经从容易获得的嘧啶基芳胺或烯胺通过高价碘促进的分子内 C-H 键环胺化反应开发了一种有效且温和的咪唑并 [1,2-a] 嘧啶衍生物合成方法。该协议允许轻松构建具有生物活性的双环咪唑并 [1,2-a] 嘧啶骨架以及其他咪唑并 [1,2-a] 型稠合杂环。