78811-33-3Relevant articles and documents
Visible-Light-Promoted Decarboxylative Giese Reactions of α-Aryl Ethenylphosphonates and the Application in the Synthesis of Fosmidomycin Analogue
Guo, Ting,Zhang, Li,Fang, Yewen,Jin, Xiaoping,Li, Yan,Li, Ruifeng,Li, Xie,Cen, Wu,Liu, Xiaobo,Tian, Zongming
, p. 1352 - 1357 (2018)
An approach for the synthesis of α-aryl alkylphosphonates based on visible-light photocatalytic Giese reaction of α-aryl vinylphosphonates with aliphatic carboxylic acids has been successfully developed. This protocol tolerates a wide range of functional
Alkyl-GeMe3: Neutral Metalloid Radical Precursors upon Visible-Light Photocatalysis
Wei, Li-Pu,Xiao, Bin,Xu, Qing-Hao
, (2022/02/17)
Single-electron transfer (SET) oxidation of ionic hypervalent complexes, in particular alkyltrifluoroborates (Alkyl-BF3?) and alkylbis(catecholato)silicates (Alkyl-Si(cat)2?), have contributed substantially to alkyl radical generation compared to alkali or alkaline earth organometallics because of their excellent activity–stability balance. Herein, another proposal is reported by using neutral metalloid compounds, Alkyl-GeMe3, as radical precursors. Alkyl-GeMe3 shows comparable activity to that of Alkyl-BF3? and Alkyl-Si(cat)2? in radical addition reactions. Moreover, Alkyl-GeMe3 is the first successful group 14 tetraalkyl nucleophile in nickel-catalyzed cross-coupling. Meanwhile, the neutral nature of these organogermanes offset the limitation of ionic precursors in purification and derivatization. A preliminary mechanism study suggests that an alkyl radical is generated from a tetraalkylgermane radical cation with the assistance of a nucleophile, which may also result in the development of more non-ionic alkyl radical precursors with a metalloid center.
Novel Inhibitors of Hepatitis C Virus Replication
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Page/Page column 100, (2009/10/21)
The embodiments provide compounds of the general Formula I, as well as compositions, including pharmaceutical compositions, comprising a subject compound. The embodiments further provide treatment methods, including methods of treating a hepatitis C virus infection and methods of treating liver fibrosis, the methods generally involving administering to an individual in need thereof an effective amount of a subject compound or composition.
Polar Substituent Effects in Additions of Alkyl Radicals to Alkenes
Giese, Bernd,Meixner, Juergen
, p. 2138 - 2145 (2007/10/02)
Reduction of cyclohexylmercuric salts (7) with NaBH4 yields cyclohexyl radicals (8).Their rel. rates of addition to substituted styrenes 4, acrylic esters 5 and acrylonitriles 6 have been measured.Comparison with Hammett ?-values shows, that substituents at the non attacked vinylic carbon atom show polar effects mainly (Table 1).The effect of a substituent variation increases with increase of the reactivity of the alkenes (Table 2).Mesomeric and steric effects play only a minor role.