{"title":"Ru(II)-Catalyzed Direct Alkynylation of 2-Acylimidazoles with TIPS-Alkynes or TIPS-Bromoalkynes under Air","authors":"Yuting Gui, Xingchi Li, Ting Fu, Taoyuan Liang, Zequan Li, Shuangliang Zhao, Zhuan Zhang","doi":"10.1039/d5qo00868a","DOIUrl":null,"url":null,"abstract":"The Ru(II)-catalyzed <em>ortho</em>-alkynylation of 2-acylimidazoles is reported, demonstrating compatibility with TIPS-protected terminal alkynes or TIPS-protected bromoalkynes as alkynylating reagents. The reaction tolerates a wide range of functional groups, and the resulting alkynylated products can be readily transformed into high-value compounds, presenting promising applications in medicinal chemistry and materials science. This strategy addresses the existing gap by proposing that the alkynylation reaction proceeds through six-membered ruthenacycle intermediates.","PeriodicalId":97,"journal":{"name":"Organic Chemistry Frontiers","volume":"52 1","pages":""},"PeriodicalIF":4.7000,"publicationDate":"2025-08-12","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/d5qo00868a","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 Ru(II)-catalyzed ortho-alkynylation of 2-acylimidazoles is reported, demonstrating compatibility with TIPS-protected terminal alkynes or TIPS-protected bromoalkynes as alkynylating reagents. The reaction tolerates a wide range of functional groups, and the resulting alkynylated products can be readily transformed into high-value compounds, presenting promising applications in medicinal chemistry and materials science. This strategy addresses the existing gap by proposing that the alkynylation reaction proceeds through six-membered ruthenacycle intermediates.
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.