Qian Jing, Zelin Zhao, Xin Fang, Xin-Hua Lu, David J. Young, Zhi-Gang Ren, Hong-Xi Li
{"title":"Visible-Light Induced Etherification of C(sp3)–H Bonds with Phenols","authors":"Qian Jing, Zelin Zhao, Xin Fang, Xin-Hua Lu, David J. Young, Zhi-Gang Ren, Hong-Xi Li","doi":"10.1021/acs.orglett.5c01018","DOIUrl":null,"url":null,"abstract":"The visible-light induced cross-dehydrogenative coupling of C(sp<sup>3</sup>)–H bonds with phenols using BrCCl<sub>3</sub> to give aryl alkyl ethers has been achieved under transition-metal- and photocatalyst-free conditions. This operationally simple and mild protocol has a broad substrate scope, and was applied to the modification of drug molecules and on a gram-scale synthesis. The phenolate ion functions as both a substrate and photosensitizer, and BrCCl<sub>3</sub> serves as the oxidant and hydrogen atom transfer (HAT) agent.","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":"8 1","pages":""},"PeriodicalIF":4.9000,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Organic Letters","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.orglett.5c01018","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
The visible-light induced cross-dehydrogenative coupling of C(sp3)–H bonds with phenols using BrCCl3 to give aryl alkyl ethers has been achieved under transition-metal- and photocatalyst-free conditions. This operationally simple and mild protocol has a broad substrate scope, and was applied to the modification of drug molecules and on a gram-scale synthesis. The phenolate ion functions as both a substrate and photosensitizer, and BrCCl3 serves as the oxidant and hydrogen atom transfer (HAT) agent.
期刊介绍:
Organic Letters invites original reports of fundamental research in all branches of the theory and practice of organic, physical organic, organometallic,medicinal, and bioorganic chemistry. Organic Letters provides rapid disclosure of the key elements of significant studies that are of interest to a large portion of the organic community. In selecting manuscripts for publication, the Editors place emphasis on the originality, quality and wide interest of the work. Authors should provide enough background information to place the new disclosure in context and to justify the rapid publication format. Back-to-back Letters will be considered. Full details should be reserved for an Article, which should appear in due course.