{"title":"Synthesis of Thioethers via Nickel-Catalyzed Cross-Coupling of Aryl Halides with Ketene Dithioacetal","authors":"Baolong Xu, Shaowen Ling, Shuaichen Zheng, Xinyi Feng, Hui Liu, Yunhui Dong, Xinjin Li, Biqiong Hong, Feng-Gang Sun","doi":"10.1021/acs.orglett.4c04692","DOIUrl":null,"url":null,"abstract":"Herein, we present a nickel-catalyzed C–S cross-coupling between aryl halides and ketene dithioacetals under “base-free” conditions without an exogenous ligand. By employing easily available ketene dithioacetals as sulfide donors, this reaction affords a broad range of unsymmetrical alkyl-aryl sulfides without using odorous and toxic thiols. The newly developed catalytic methodology features an excellent functional group tolerance, wide substrate scope, and diverse downstream synthesis. Preliminary mechanism investigations reveal that a Ni(I)/Ni(III) catalytic cycle might be involved.","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":"16 1","pages":""},"PeriodicalIF":4.9000,"publicationDate":"2025-02-09","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.4c04692","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
Herein, we present a nickel-catalyzed C–S cross-coupling between aryl halides and ketene dithioacetals under “base-free” conditions without an exogenous ligand. By employing easily available ketene dithioacetals as sulfide donors, this reaction affords a broad range of unsymmetrical alkyl-aryl sulfides without using odorous and toxic thiols. The newly developed catalytic methodology features an excellent functional group tolerance, wide substrate scope, and diverse downstream synthesis. Preliminary mechanism investigations reveal that a Ni(I)/Ni(III) catalytic cycle might be involved.
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.