铁介导的烯烃酰胺溴环化反应用于合成溴苯并噁嗪

Synthesis Pub Date : 2024-06-05 DOI:10.1055/a-2338-8479
Da‐Zhen Xu, Tong-Tong Zhao, Qiang Bian, Yu-Wei Zhao, Lin-Lin Xu, Wei-Guang Zhao
{"title":"铁介导的烯烃酰胺溴环化反应用于合成溴苯并噁嗪","authors":"Da‐Zhen Xu, Tong-Tong Zhao, Qiang Bian, Yu-Wei Zhao, Lin-Lin Xu, Wei-Guang Zhao","doi":"10.1055/a-2338-8479","DOIUrl":null,"url":null,"abstract":"An iron-mediated bromination/cyclization for the synthesis of bromobenzoxazines from olefinic amides has been successfully developed. In this protocol, the simple iron salt FeBr3 was employed as a bromination reagent, giving the bromobenzoxazine products in moderate to excellent yields. This methodology features good functional group tolerance, gram-scale synthesis and green reaction conditions by the use of air as the terminal oxidant. Preliminary mechanistic studies suggest that a free radical pathway is involved.","PeriodicalId":501298,"journal":{"name":"Synthesis","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Iron-Mediated Bromocyclization of Olefinic Amides for the Synthesis of Bromobenzoxazines\",\"authors\":\"Da‐Zhen Xu, Tong-Tong Zhao, Qiang Bian, Yu-Wei Zhao, Lin-Lin Xu, Wei-Guang Zhao\",\"doi\":\"10.1055/a-2338-8479\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An iron-mediated bromination/cyclization for the synthesis of bromobenzoxazines from olefinic amides has been successfully developed. In this protocol, the simple iron salt FeBr3 was employed as a bromination reagent, giving the bromobenzoxazine products in moderate to excellent yields. This methodology features good functional group tolerance, gram-scale synthesis and green reaction conditions by the use of air as the terminal oxidant. Preliminary mechanistic studies suggest that a free radical pathway is involved.\",\"PeriodicalId\":501298,\"journal\":{\"name\":\"Synthesis\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Synthesis\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1055/a-2338-8479\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Synthesis","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1055/a-2338-8479","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

以烯烃酰胺为原料合成溴苯并噁嗪的铁介导溴化/环化方法已经开发成功。在该方案中,采用简单的铁盐 FeBr3 作为溴化试剂,溴苯并噁嗪产物的产率为中等到极佳。该方法具有良好的官能团耐受性、克级合成能力以及使用空气作为末端氧化剂的绿色反应条件。初步机理研究表明,其中涉及自由基途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Iron-Mediated Bromocyclization of Olefinic Amides for the Synthesis of Bromobenzoxazines

Iron-Mediated Bromocyclization of Olefinic Amides for the Synthesis of Bromobenzoxazines
An iron-mediated bromination/cyclization for the synthesis of bromobenzoxazines from olefinic amides has been successfully developed. In this protocol, the simple iron salt FeBr3 was employed as a bromination reagent, giving the bromobenzoxazine products in moderate to excellent yields. This methodology features good functional group tolerance, gram-scale synthesis and green reaction conditions by the use of air as the terminal oxidant. Preliminary mechanistic studies suggest that a free radical pathway is involved.
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
自引率
0.00%
发文量
0
×
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:481959085
Book学术官方微信