Rh(I)‐Catalyzed Direct C6−H Arylation of 2‐Pyridones with Aryl Carboxylic Acids
作者:Haoqiang Zhao、Jianbin Xu、Xin Xu、Yixiao Pan、Zexin Yu、Lijin Xu、Qinghua Fan、Patrick J. Walsh
DOI:10.1002/adsc.202100596
日期:2021.8.13
Rh(I)-catalyzed C6-selective C−H arylation of 2-pyridones with inexpensive, readily available, safe and structurally diverse aryl carboxylic acids with the aid of a pyridine directing group is developed. This decarbonylative arylation protocol features an easy-to-handle catalytic system, and is amenable to diversely substituted 2-pyridones and aryl carboxylic acids. It allows access to a wide range
Switching the Reactivity of the Nickel-Catalyzed Reaction of 2-Pyridones with Alkynes: Easy Access to Polyaryl/Polyalkyl Quinolinones
作者:Namrata Prusty、Smruti Ranjan Mohanty、Shyam Kumar Banjare、Tanmayee Nanda、Ponneri C. Ravikumar
DOI:10.1021/acs.orglett.2c02021
日期:2022.8.26
with alkynes has been achieved. A change in the reaction pathway was achieved by tuning the reaction conditions and incorporating a directing group. A wide variety of substrates and alkynes are amenable to this transformation. The key to success for this transformation is the use of sodium iodide as an additive. More importantly, we detected the five-membered metallacycle intermediate through HRMS