19136-97-1Relevant articles and documents
Controllable Intramolecular Unactivated C(sp3)-H Amination and Oxygenation of Carbamates
Guo, Qihang,Ren, Xiang,Lu, Zhan
supporting information, p. 880 - 884 (2019/05/16)
Dual catalyst-controlled intramolecular unactivated C(sp3)-H amination and oxygenation of carbamates merging visible-light photocatalysis and earth-abundant transition metal catalysis have been reported. Useful amino alcohol and diol derivatives could be selectively obtained from readily available tertiary alcohol derivatives. The possible mechanisms have been proposed via a 1,5-HAT process followed by Lewis acid-controlled cyclization. The nickel and zinc catalysts inhibit the formation of oxygenation and amination products, respectively. An interesting phenomenon of chirality transfer is also observed.
Triazolium Carbene Catalysts and Stereoselective Bond Forming Reactions Thereof
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Page/Page column 9, (2011/10/04)
Provided herein are triazolium carbine catalysts useful for asymmetric hydration, fluorination, and deuteration, and processes for their preparation. Also provided are synthetic reactions in which these catalysts are used, in particular, in stereoselective formation of carbon-chlorine, carbon-hydrogen, carbon-fluorine, and carbon-deuterium bonds.
Isomerisation reaction of a gem-bis-trifluoromethyl olefin in a basic medium: A kinetic study
Tordeux, Marc,Marival-Hodebar, Laurence,Pouet, Marie-Josée,Halle, Jean-Claude,Wakselman, Claude
, p. 147 - 152 (2007/10/03)
The rearrangement of 5-phenyl-1,1,1-trifluoro-2-(trifluoromethyl)pent-2-ene to 5-phenyl-1,1,1-trifluoro-2-(trifluoromethyl)pent-3-ene has been studied by 19F NMR in dimethylsulphoxide (DMSO). This isomerisation is catalysed by a base such as tr