<i>gem</i>-Bromonitroalkane Involved Radical 1,2-Aryl Migration of α,α-Diaryl Allyl Alcohol TMS Ether via Visible-Light Photoredox Catalysis
作者:Shanshan Ma、Yawen Guo、Lidong Liu、Lin Shi、Xingyu Lei、Xinfang Duan、Peng Jiao
DOI:10.1021/acs.joc.3c00343
日期:——
reactions of gem-bromonitroalkanes with α,α-diaryl allyl alcohol trimethylsilyl ethers was reported. A cascade consisting of visible-light-induced generation of an α-nitroalkyl radical and a subsequent neophyl-type rearrangement was key to realize the coupling reactions. Structurally diverse α-aryl-γ-nitro ketones, especially those bearing a nitrocyclobutyl structure, were prepared in moderate to high
报道了一种温和有效的关于偕-溴硝基烷烃与 α,α-二芳基烯丙醇三甲基甲硅烷基醚反应的偶联方法。由可见光诱导的 α-硝基烷基自由基的产生和随后的 neophyl 型重排组成的级联是实现偶联反应的关键。结构多样的 α-芳基-γ-硝基酮,尤其是那些带有硝基环丁基结构的酮,以中等到高产率制备,可以转化为螺环硝酮和亚胺。