Ruthenium-Catalyzed Chemoselective N–H Bond Insertion Reactions of 2-Pyridones/7-Azaindoles with Sulfoxonium Ylides
作者:Xiaofeng Liu、Ying Shao、Jiangtao Sun
DOI:10.1021/acs.orglett.0c04229
日期:2021.2.5
excellent N-selectivity. The key to achieve this unprecedented N–H rather than O–H insertion reaction is the use of CpRu(PPh3)2Cl as the catalyst and sulfoxonium ylides as the alkylation reagents. Moreover, this protocol is also amenable to 7-azaindoles by slightly varying the reaction conditions. Furthermore, sulfonium ylides are also suitable alkylation reagents, providing the N-alkylated 2-pyridones in
已经开发了钌催化的2-吡啶酮的高化学选择性N-烷基化,以良好的产率和优异的N-选择性提供了N-烷基化的2-吡啶酮衍生物。实现这种空前的N–H而不是O–H插入反应的关键是使用CpRu(PPh 3)2 Cl作为催化剂,使用亚砜基烷基化物作为烷基化试剂。此外,通过稍微改变反应条件,该方案也适用于7-氮杂吲哚。此外,yl化钠也是合适的烷基化试剂,以良好的选择性提供N-烷基化的2-吡啶酮。