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。