Selective Iodine-Catalyzed Intermolecular Oxidative Amination of C(sp3)H Bonds with ortho-Carbonyl-Substituted Anilines to Give Quinazolines
作者:Yizhe Yan、Yonghui Zhang、Chengtao Feng、Zhenggen Zha、Zhiyong Wang
DOI:10.1002/anie.201203880
日期:2012.8.6
The selective amination of C(sp3)H bonds adjacent to nitrogen or oxygen atoms of N‐alkylamides, ethers, or alcohols with ortho‐carbonyl‐substituted anilines constitutes the first step in a tandem annulation that leads to quinazolines in good to excellent yields (see scheme; NIS=N‐Iodosuccinimide, TBHP=tert‐butyl hydroperoxide). The selectivity of the amination of primary and secondary CH bonds is
获得的喹唑啉:C(SP的选择性胺化3)相邻的N-烷基酰胺,醚类,或与醇的氮或氧原子H键邻位-羰基取代的苯胺构成的串联环的第一步,导致喹唑啉以良好至优异的产率(参见方案; NIS = ñ碘代丁二酰亚胺,TBHP =叔丁基过氧化氢)。的初级和次级C中的胺化的选择性 H键还值得注意(左:> 3:1,右:> 99:1)。