{"title":"Radical 1,3-Difunctionalization of β,γ-Unsaturated Ketones via Concomitant 1,2-Carbonyl Migration: An Entrance to β-SF<sub>5</sub>-/β-CF<sub>3</sub>SF<sub>4</sub> Ketones.","authors":"Jia-Yu Li, Ying Liu, Donglei Sun, Gang Wu, Shuai-Shuai Yue, Hui-Yi Yang, Hao Zhang, Wei Zhang, Meng-Meng Zheng, Xiao-Song Xue, Shuo Guo","doi":"10.1021/jacs.5c09085","DOIUrl":null,"url":null,"abstract":"<p><p>The radical migration (RaM) mechanism via photoinduced transformation is a powerful tool in organic synthesis to construct new molecular scaffolds. Herein we disclose a metal-free, photoinduced 1,2-carbonyl migration of β,γ-unsaturated ketones to afford a wide range of valuable β-SF<sub>5</sub>/β-CF<sub>3</sub>SF<sub>4</sub> ketones. This transformation exhibits broad functional group tolerance and is suitable for the late-stage modification of complex molecules in up to 93% yield with excellent chemoselectivity and regioselectivity. Furthermore, mechanistic studies reveal that the selective synthesis of 1,3-chloropentafluorosulfanylation can be accomplished via a carbonyl migration followed by a radical chain propagation pathway. Finally, SF<sub>5</sub>-containing compound <b>5</b> exhibits potential anticancer activity, underscoring the utility of this approach.</p>","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":" ","pages":""},"PeriodicalIF":14.4000,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Chemical Society","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/jacs.5c09085","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
The radical migration (RaM) mechanism via photoinduced transformation is a powerful tool in organic synthesis to construct new molecular scaffolds. Herein we disclose a metal-free, photoinduced 1,2-carbonyl migration of β,γ-unsaturated ketones to afford a wide range of valuable β-SF5/β-CF3SF4 ketones. This transformation exhibits broad functional group tolerance and is suitable for the late-stage modification of complex molecules in up to 93% yield with excellent chemoselectivity and regioselectivity. Furthermore, mechanistic studies reveal that the selective synthesis of 1,3-chloropentafluorosulfanylation can be accomplished via a carbonyl migration followed by a radical chain propagation pathway. Finally, SF5-containing compound 5 exhibits potential anticancer activity, underscoring the utility of this approach.
期刊介绍：
The flagship journal of the American Chemical Society, known as the Journal of the American Chemical Society (JACS), has been a prestigious publication since its establishment in 1879. It holds a preeminent position in the field of chemistry and related interdisciplinary sciences. JACS is committed to disseminating cutting-edge research papers, covering a wide range of topics, and encompasses approximately 19,000 pages of Articles, Communications, and Perspectives annually. With a weekly publication frequency, JACS plays a vital role in advancing the field of chemistry by providing essential research.
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