Wenguang Li, Jing Tao, Heyun Sheng, Man Cao, Ming Chen, Wenchao Gao, Xu Zhang, Wentao Li, Yongqi Yu, Ting Li
{"title":"Palladium(II)-catalyzed norbornene derivatives-mediated ortho-C−H silylation: access to divergent silicon-containing carbazoles","authors":"Wenguang Li, Jing Tao, Heyun Sheng, Man Cao, Ming Chen, Wenchao Gao, Xu Zhang, Wentao Li, Yongqi Yu, Ting Li","doi":"10.1039/d5qo00409h","DOIUrl":null,"url":null,"abstract":"A palladium(II)-catalyzed norbornene derivatives-mediated selective <em>ortho</em>-C−H silylation of free NH-carbazoles has been developed for the synthesis of arylsilanes. Such a conversion provides access to a range of arylsilanes with exclusive selectivity using norbornene (NBE) derivatives as the transient directing mediators. The kinetic experiments show that C–H activation is the rate determining step for the conversion. Notably, a six-membered palladacycle intermediate was involved in this case.","PeriodicalId":97,"journal":{"name":"Organic Chemistry Frontiers","volume":"28 1","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2025-04-07","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/d5qo00409h","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
A palladium(II)-catalyzed norbornene derivatives-mediated selective ortho-C−H silylation of free NH-carbazoles has been developed for the synthesis of arylsilanes. Such a conversion provides access to a range of arylsilanes with exclusive selectivity using norbornene (NBE) derivatives as the transient directing mediators. The kinetic experiments show that C–H activation is the rate determining step for the conversion. Notably, a six-membered palladacycle intermediate was involved in this case.
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.