Rajanish R Pallerla, Jenna Hakola, Leevi Härkönen, Juha H Siitonen
{"title":"Biomimetic Total Synthesis of (±)-Lappaceolides A and B.","authors":"Rajanish R Pallerla, Jenna Hakola, Leevi Härkönen, Juha H Siitonen","doi":"10.1021/acs.orglett.5c02445","DOIUrl":null,"url":null,"abstract":"<p><p>The first total synthesis of lappaceolides A and B is achieved in two steps by using a biomimetic vinylogous-Michael-oxa-Michael domino reaction. The domino reaction proceeds with Cs<sub>2</sub>CO<sub>3</sub> in 1,2-DCE at elevated temperatures and requires careful kinetic control. The total synthesis provides further proof of the biosynthetic hypothesis of lappaceolides being dimers of the natural product siphonodin.</p>","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":" ","pages":""},"PeriodicalIF":5.0000,"publicationDate":"2025-10-01","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.5c02445","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 first total synthesis of lappaceolides A and B is achieved in two steps by using a biomimetic vinylogous-Michael-oxa-Michael domino reaction. The domino reaction proceeds with Cs2CO3 in 1,2-DCE at elevated temperatures and requires careful kinetic control. The total synthesis provides further proof of the biosynthetic hypothesis of lappaceolides being dimers of the natural product siphonodin.
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.