酸介导的ugi后重排对吡啶[1,2,3-de]喹啉-2,5-二酮的区域选择性构建

IF 4.2 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Mandweep Bhumij , Rehan Ahamed , Ruchir Kant , Sathish Kumar Mudedla , Ajay Kumar Srivastava
{"title":"酸介导的ugi后重排对吡啶[1,2,3-de]喹啉-2,5-二酮的区域选择性构建","authors":"Mandweep Bhumij ,&nbsp;Rehan Ahamed ,&nbsp;Ruchir Kant ,&nbsp;Sathish Kumar Mudedla ,&nbsp;Ajay Kumar Srivastava","doi":"10.1039/d5cc02548f","DOIUrl":null,"url":null,"abstract":"<div><div>We report a robust method for preparing uniquely functionalized pyrido[1,2,3-<em>de</em>]quinoxaline-2,5-diones from alkynamide-containing Ugi adducts under acidic conditions. This single-step process proceeds through spirocyclization of Ugi adducts followed by intramolecular condensation and ring expansion in a highly regioselective manner. Mechanistic studies and DFT calculations were performed to establish the reaction path and possible intermediates.</div></div>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"61 68","pages":"Pages 12757-12760"},"PeriodicalIF":4.2000,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Regioselective construction of pyrido[1,2,3-de]quinoxaline-2,5-diones through acid-mediated post-Ugi rearrangements†\",\"authors\":\"Mandweep Bhumij ,&nbsp;Rehan Ahamed ,&nbsp;Ruchir Kant ,&nbsp;Sathish Kumar Mudedla ,&nbsp;Ajay Kumar Srivastava\",\"doi\":\"10.1039/d5cc02548f\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We report a robust method for preparing uniquely functionalized pyrido[1,2,3-<em>de</em>]quinoxaline-2,5-diones from alkynamide-containing Ugi adducts under acidic conditions. This single-step process proceeds through spirocyclization of Ugi adducts followed by intramolecular condensation and ring expansion in a highly regioselective manner. Mechanistic studies and DFT calculations were performed to establish the reaction path and possible intermediates.</div></div>\",\"PeriodicalId\":67,\"journal\":{\"name\":\"Chemical Communications\",\"volume\":\"61 68\",\"pages\":\"Pages 12757-12760\"},\"PeriodicalIF\":4.2000,\"publicationDate\":\"2025-08-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Communications\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/org/science/article/pii/S1359734525016337\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S1359734525016337","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

设计和合成结构复杂的富含sp3的融合杂环仍然是现代药物化学的基石,多环框架在实现对各种蛋白质靶标的高选择性方面发挥着关键作用考虑到它们的重要性,一些研究小组已经报告了以有效的方式构建这种骨架的优雅方法近年来,后ugi功能化在开发原子高效和无金属催化的反应以制备密集功能化的富氮多环中发挥了重要作用Eycken的团队已经报道了一些优雅的方法,他们专注于金属催化的后ugi修饰,以制备熔融多环。Domling的团队还利用基于异氰化物的MCR加合物通过一系列转化制备了多环化合物我们的团队致力于开发无金属的Ugi后功能化,以含Ugi加合物的烷基酰胺合成氮杂环支架(方案1a)。6,7我们可以在一个锅中通过ipo环化和aza-Michael环化成功地从对茴香胺衍生的Ugi加合物I构建氮杂环骨架III(方案1a)。为了继续我们对从含有Ugi加合物的烷基酰胺中开发新的转化的兴趣,我们在此报告了从Ugi加合物IV中通过区域选择性缩合和在酸性条件下重排构建吡啶[1,2,3-de]喹啉-2,5-二酮V(方案1b)。2-氨基苯酚衍生的Ugi加合物先前已由Eycken等人8,9和Sharma等人进行了研究,其中他们通过各种金属催化转化合成了化合物V/VII/VIII(方案1c)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Regioselective construction of pyrido[1,2,3-de]quinoxaline-2,5-diones through acid-mediated post-Ugi rearrangements†

Regioselective construction of pyrido[1,2,3-de]quinoxaline-2,5-diones through acid-mediated post-Ugi rearrangements†
We report a robust method for preparing uniquely functionalized pyrido[1,2,3-de]quinoxaline-2,5-diones from alkynamide-containing Ugi adducts under acidic conditions. This single-step process proceeds through spirocyclization of Ugi adducts followed by intramolecular condensation and ring expansion in a highly regioselective manner. Mechanistic studies and DFT calculations were performed to establish the reaction path and possible intermediates.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Chemical Communications
Chemical Communications 化学-化学综合
CiteScore
8.60
自引率
4.10%
发文量
2705
审稿时长
1.4 months
期刊介绍: ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信