A Cu(OAc)2-mediated C-Hamidation and amination of arenes and heteroarenes has been developed using a readily removable directing group. A wide range of sulfonamides, amides, and anilines function as amine donors in this reaction. Heterocycles present in both reactants are tolerated, making this a broadly applicable method for the synthesis of a family of inhibitors including 2-benzamidobenzoic acids
Amide-Oxazoline Directed <i>ortho</i>
-C-H Nitration Mediated by Cu<sup>II</sup>
作者:Tian-Hong Gao、Chun-Meng Wang、Kai-Xiang Tang、Yun-Gen Xu、Li-Ping Sun
DOI:10.1002/ejoc.201900117
日期:2019.5.26
The first ortho‐C–H nitration using amide‐oxazoline as the directing group has been reported. The reactions utilize simple and readily available nitro source and proceed under Cu(II) mediated conditions.
Cu-catalyzed coupling of aryl C-H bonds with arylboron reagents was accomplished using a readily removable directing group, which provides a useful method for the synthesis of biaryl compounds. The distinct transmetalation step in this Cu-catalyzed C-H coupling with aryl borons provides unique evidence for the formation of an aryl cupperate intermediate.