Diastereoselective Michael Addition of Non-Functionalized Furanone to Nitroalkenes in Aqueous Condition

IF 2.7 4区 化学 Q1 CHEMISTRY, ORGANIC
Kumar Naveen, Nishkant Malkoti, Vishesh Singh Rawat, Prof. Dr. Elumalai Gnanamani
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引用次数: 0

Abstract

Selectivity plays a major role in organic chemistry and biological applications. Herein, we present a diastereoselective DMAP-catalyzed Michael addition of furanone (butenolide) to nitroalkenes. Notably, our method does not require the pre-activation of furanone as 2-(trimethylsiloxy)furan and utilizes water: ethanol (1:3) as a solvent. These mild conditions afford the anti-Michael products in up to 82% isolated yield with up to 87:13 dr (diastereomeric ratio). The scope of this reaction extends to various aromatic, heteroaromatic, and aliphatic nitroalkenes. Furthermore, we demonstrate this process on a gram scale and highlight the utility of the obtained Michael adducts for accessing natural product cores.

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非功能化呋喃酮与硝基烯烃的非对映选择性加成反应
选择性在有机化学和生物应用中起着重要的作用。在此,我们提出了一种非对映选择性dmap催化的呋喃酮(丁烯内酯)到硝基烯烃的迈克尔加成反应。值得注意的是,我们的方法不需要呋喃酮作为2-(三甲基硅氧基)呋喃的预活化,并且使用水:乙醇(1:3)作为溶剂。在这些温和的条件下,抗michael产物的分离率高达82%,非对映比高达87:13 dr。这个反应的范围扩展到各种芳香族、杂芳香族和脂肪族硝基烯。此外,我们在克尺度上展示了这一过程,并强调了所获得的Michael加合物在获取天然产物核心方面的效用。
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来源期刊
CiteScore
4.70
自引率
3.70%
发文量
372
期刊介绍: Organic chemistry is the fundamental science that stands at the heart of chemistry, biology, and materials science. Research in these areas is vigorous and truly international, with three major regions making almost equal contributions: America, Europe and Asia. Asia now has its own top international organic chemistry journal—the Asian Journal of Organic Chemistry (AsianJOC) The AsianJOC is designed to be a top-ranked international research journal and publishes primary research as well as critical secondary information from authors across the world. The journal covers organic chemistry in its entirety. Authors and readers come from academia, the chemical industry, and government laboratories.
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