{"title":"铜介导的2h -茚唑与n -氟苯磺酰亚胺的CH胺化反应","authors":"Zhenhua Li, Lixian Ye, Yingyan Cao, Jinjing Qin, Wenbiao Wang, Yuanyuan Xie","doi":"10.1016/j.tetlet.2021.153427","DOIUrl":null,"url":null,"abstract":"<div><p>A facile copper-catalyzed amination in C-3 position of 2<em>H</em>-indazoles using commercially available <em>N</em>-fluorobenzenesulfonimide (NFSI) as an amidating reagent was established in this paper. The results revealed broad substrate scope in moderate to good yields under mild conditions. The described procedure involves a radical addition process whereby new C<img>N bonds are formed, and it provides a new protocol for the synthesis of functionalized 2<em>H</em>-indazoles.</p></div>","PeriodicalId":438,"journal":{"name":"Tetrahedron Letters","volume":"83 ","pages":"Article 153427"},"PeriodicalIF":1.5000,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Copper-mediated CH amination of 2H-indazoles with N–Fluorobenzenesulfonimide\",\"authors\":\"Zhenhua Li, Lixian Ye, Yingyan Cao, Jinjing Qin, Wenbiao Wang, Yuanyuan Xie\",\"doi\":\"10.1016/j.tetlet.2021.153427\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A facile copper-catalyzed amination in C-3 position of 2<em>H</em>-indazoles using commercially available <em>N</em>-fluorobenzenesulfonimide (NFSI) as an amidating reagent was established in this paper. The results revealed broad substrate scope in moderate to good yields under mild conditions. The described procedure involves a radical addition process whereby new C<img>N bonds are formed, and it provides a new protocol for the synthesis of functionalized 2<em>H</em>-indazoles.</p></div>\",\"PeriodicalId\":438,\"journal\":{\"name\":\"Tetrahedron Letters\",\"volume\":\"83 \",\"pages\":\"Article 153427\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2021-10-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tetrahedron Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0040403921007000\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, ORGANIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tetrahedron Letters","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0040403921007000","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
Copper-mediated CH amination of 2H-indazoles with N–Fluorobenzenesulfonimide
A facile copper-catalyzed amination in C-3 position of 2H-indazoles using commercially available N-fluorobenzenesulfonimide (NFSI) as an amidating reagent was established in this paper. The results revealed broad substrate scope in moderate to good yields under mild conditions. The described procedure involves a radical addition process whereby new CN bonds are formed, and it provides a new protocol for the synthesis of functionalized 2H-indazoles.
期刊介绍:
Tetrahedron Letters provides maximum dissemination of outstanding developments in organic chemistry. The journal is published weekly and covers developments in techniques, structures, methods and conclusions in experimental and theoretical organic chemistry. Rapid publication of timely and significant research results enables researchers from all over the world to transmit quickly their new contributions to large, international audiences.