- Synthesis of β-nitro ketones from geminal bromonitroalkanes and silyl enol ethers by visible light photoredox catalysis
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Various β-nitro ketones, including those bearing a β-tertiary carbon, were prepared from geminal bromonitroalkanes and trimethylsilyl enol ethers of a broad range of ketones by visible light photoredox catalysis, which were then easily converted into β-amino ketones, 1,3-amino alcohols, α,β-unsaturated ketones, β-cyano ketones and γ-nitro ketones.
- Cao, Haoying,Ma, Shanshan,Feng, Yanhong,Guo, Yawen,Jiao, Peng
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p. 1780 - 1783
(2022/02/17)
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- Coupling of Enolates of Phenones with 2-Chloro-2-nitropropane
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Lithium enolates of acetophenone, α-methoxyacetophenone, propiophenone, meta- or para-substituted propiophenones, butyrophenone, isovalerophenone, 1-phenyl-1-hexanone, 1-indanone, 1-tetralone, or 1-benzosuberone react with 2-chloro-2-nitropropane in THF by free radical chain processes to produce ArCOCH(CMe2NO2)R or ArCOC(R)=CMe2 and when R H the product of oxidative dimerization, 2.The enolate anion of deoxybenzoin yields in a free radical chain process only the dimerization product.
- Russel, Glen A.,Mudryk, Boguslaw,Jawdosiuk, Mikolaj,Wrobel, Zbigniew
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p. 1879 - 1884
(2007/10/02)
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