Controllable Intramolecular Unactivated C(sp3)-H Amination and Oxygenation of Carbamates
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.
Guo, Qihang,Ren, Xiang,Lu, Zhan
supporting information
p. 880 - 884
(2019/05/16)
C-C bond cleavage in oxidation of aliphatic hydrocarbons under mild conditions in the Vv/H2O2/AcOH system
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Gekhman,Stolyarov,Ershova,Moiseeva,Moiseev
p. 150 - 153
(2007/10/03)
CuCl2.2H2O MeOH. A new reagent system for the deprotection of tetrahydropyranyl ethers
Cupric chloride dihydrate in methanol cleave the tetrahydropyranyl ethers to the corresponding alcohols in excellent yields under mild conditions.
Davis, K. Joju,Bhalerao,Vittal Rao
p. 2301 - 2308
(2007/10/03)
Stark bevorzugte Alkylierung und Carbonylolefinierung von α- und β-Hydroxycarbonylverbindungen durch Organouebergangsmetallreagentien in Konkurrenzversuchen mit entsprechenden OH-freien Verbindungen