{"title":"Catalyst-Free C-H Methylation of Heteroarenes Enabled by Electron Donor-Acceptor Complex Photoactivation","authors":"Jiayang Wang, baoer shao, Hai Xia Ge, Huiyu Xue, Xiangyuan Ding, Yuqi Li, Peiyao Sheng","doi":"10.1039/d4qo01309c","DOIUrl":null,"url":null,"abstract":"An efficient, additive- and catalyst -free, visible-light-driven radical C-H methylation of heteroarenes (including quinoxalinones, pyrazinones, quinolinones and coumarins) utilizing readily available methylamines as the methyl source has been developed. The transformation possesses the advantages of operational simplicity, mild reaction conditions and broad substrate scope. Mechanistic studies disclosed that a photoactive electron donor-acceptor (EDA) complex between methylamines and heteroarenes is crucial to this transformation.","PeriodicalId":97,"journal":{"name":"Organic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Organic Chemistry Frontiers","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4qo01309c","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
引用次数: 0
Abstract
An efficient, additive- and catalyst -free, visible-light-driven radical C-H methylation of heteroarenes (including quinoxalinones, pyrazinones, quinolinones and coumarins) utilizing readily available methylamines as the methyl source has been developed. The transformation possesses the advantages of operational simplicity, mild reaction conditions and broad substrate scope. Mechanistic studies disclosed that a photoactive electron donor-acceptor (EDA) complex between methylamines and heteroarenes is crucial to this transformation.
期刊介绍:
Organic Chemistry Frontiers is an esteemed journal that publishes high-quality research across the field of organic chemistry. It places a significant emphasis on studies that contribute substantially to the field by introducing new or significantly improved protocols and methodologies. The journal covers a wide array of topics which include, but are not limited to, organic synthesis, the development of synthetic methodologies, catalysis, natural products, functional organic materials, supramolecular and macromolecular chemistry, as well as physical and computational organic chemistry.