{"title":"Ag-promoted radical decarboxylative annulation of α-keto acids with terminal alkynes to construct Indenones","authors":"Hong Dai , Lei Luo , Luo Yang","doi":"10.1016/j.tetlet.2025.155648","DOIUrl":null,"url":null,"abstract":"<div><div>An Ag-promoted radical decarboxylative annulation of α-keto acids with terminal alkynes to provide C2 benzoylated indenones is realized, via radical decarboxylation, addition and cyclization cascade. Terminal alkynes were used directly as the substrate with excellent reigo-selectivity. The second benzoyl radical was installed onto the C2 of indeonone, benefiting the potential post-functionalization.</div></div>","PeriodicalId":438,"journal":{"name":"Tetrahedron Letters","volume":"165 ","pages":"Article 155648"},"PeriodicalIF":1.5000,"publicationDate":"2025-05-11","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/S0040403925001972","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
引用次数: 0
Abstract
An Ag-promoted radical decarboxylative annulation of α-keto acids with terminal alkynes to provide C2 benzoylated indenones is realized, via radical decarboxylation, addition and cyclization cascade. Terminal alkynes were used directly as the substrate with excellent reigo-selectivity. The second benzoyl radical was installed onto the C2 of indeonone, benefiting the potential post-functionalization.
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.