{"title":"Cu-Catalyzed Cycloaromatization and Amination of 2-Bromoaryl Nitriles, Terminal Alkynes, and Amines for 1-Aminoisoquinoline Synthesis.","authors":"Zhennan Lei,Saihong Wan,Feng Liu,Jianyu Dong,Yongbo Zhou","doi":"10.1021/acs.orglett.5c01258","DOIUrl":null,"url":null,"abstract":"We report a copper-catalyzed 6-endo-dig cycloaromatization and amination of 2-bromoaryl nitriles, terminal alkynes, and amines for efficient and selective synthesis of 1-aminoisoquinolines, which involves difunctionalization of the cyano group with amination of its carbon atom. A variety of 1-aminoisoquinolines, as well as derivatives of modified amino-containing drug molecules, are readily achieved in water. Cu(III)-acetylide serves as intermediate and governs the exclusive 6-endo-dig selectivity, suppressing undesired 5-exo-dig byproducts.","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":"32 1","pages":""},"PeriodicalIF":4.9000,"publicationDate":"2025-05-19","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.5c01258","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
We report a copper-catalyzed 6-endo-dig cycloaromatization and amination of 2-bromoaryl nitriles, terminal alkynes, and amines for efficient and selective synthesis of 1-aminoisoquinolines, which involves difunctionalization of the cyano group with amination of its carbon atom. A variety of 1-aminoisoquinolines, as well as derivatives of modified amino-containing drug molecules, are readily achieved in water. Cu(III)-acetylide serves as intermediate and governs the exclusive 6-endo-dig selectivity, suppressing undesired 5-exo-dig byproducts.
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.