Rhodium(III)‐catalyzed Intermolecular Unactivated Secondary C(
<i>sp</i>
<sup>3</sup>
)−H Bond Amidation Directed by 3,5‐dimethylpyrazole
作者:Yanwei Wang、Hongxin Liu、Bin Li、Baiquan Wang
DOI:10.1002/adsc.201801592
日期:2019.4
Rh(III)‐catalyzed intermolecular unactivated secondary C(sp3)−H bond amidation via nitrene insertion directed by 3,5‐dimethylpyrazole is reported. This procedure tolerates a broad substrate scope including chain and cyclic N‐alklyamides. Notably, the directing group 3,5‐dimethylpyrazole of chain N‐alkylamide substrates could be easily removed via cascade intermolecularamidation and intramolecular