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• W4248804001 abstract "Sulfone derivatives are important synthetic intermediates. However, the general method for their preparation is through traditional coupling reaction: the alkylation of sodium sulfinates with phenacyl halides. Based on our previous work on sodium sulfinates and oxime acetates, we herein report a novel method for sulfone derivatives by oxidative coupling with sodium sulfinates and oxime acetates using copper as catalyst. The sulfonylvinylamine products could be formed in excellent yields. Upon hydrolysis by silica gel in CH2Cl2, β-ketosulfones could also be efficiently constructed. Various sulfonylvinylamines and β-ketosulfones were obtained in good to excellent yields under the optimized reaction conditions. Mechanistic studies indicated that this transformation involved copper-catalyzed NO bond cleavage, activation of a vinyl sp2 CH bond, and CS bond formation. The oxime acetates act as both a substrate and an oxidant, thus the reaction needs no additional oxidants or additives." @default.
• W4248804001 created "2022-05-12" @default.
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• W4248804001 date "2014-02-20" @default.
• W4248804001 modified "2023-10-01" @default.
• W4248804001 title "Copper-Catalyzed Coupling of Oxime Acetates with Sodium Sulfinates: An Efficient Synthesis of Sulfone Derivatives" @default.
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• W4248804001 doi "https://doi.org/10.1002/ange.201311217" @default.
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