1636-01-7Relevant articles and documents
Oxovanadium(v)-catalyzed oxidative cross-coupling of enolates using O2as a terminal oxidant
Osafune, Yuma,Jin, Yuqing,Hirao, Toshikazu,Tobisu, Mamoru,Amaya, Toru
supporting information, p. 11697 - 11700 (2020/10/19)
The oxovanadium(v)-catalyzed oxidative cross-coupling of enolates using O2 as a terminal oxidant is reported, where a boron enolate and a silyl enol ether were employed as enolates. The redox behavior of V(v/iv) in this reaction under O2 was investigated by ESR and 51V NMR experiments.
High valence vanadium complex promoted selective rearrangement of epoxides to aldehydes or ketones
Martinez, Fernando,Campo, Carmen del,Llama, Emilio F.
, p. 1749 - 1752 (2008/10/08)
High valence vanadium complexes induce the selective ring opening of epoxides. The monosubstituted epoxides are isomerized with complete regioselectivity each forming a single carbonyl compound exclusively. Likewise a highly regioselective isomerization of 1,1-disubstituted or 1,1,2-trisubstituted epoxides was observed in all reactions.
Functionalized Oxovanadium Alkoxides - Potential Haptens
Hillerns, Frank,Rehder, Dieter
, p. 2249 - 2254 (2007/10/02)
Several new oxovanadium alkoxides and alkoxides/chlorides of the composition VOCl3-n(OR)n (n = CPh3; n = 2 and 3, R = CPh3, iBu, cyclopentyl, tert-pentyl, octyl; n 3, R = dodecyl, 3-methylbutyl) and the mixed ester VO(OiBu)-(OCPh3)2 have been prepared.The compounds VO(OiBu)2OR' have ben synthesized, where R' is a functionalized long-chain alkyl group .The chloride/carboxylate VOCl2 has also been obtained.The compounds are characterized, inter alia, by 51V-NMR spectroscopy.Typical 51V shift ranges are observed for specific ligand functionalities (chlorides, alkoxide, carboxylate). δ(51V) values also depend on the steric requirement of the groups R and the coordination number.The importance of the functionalized esters as potential triggers for the production of abzymes with phosphatase activity is discussed.Key Words: Vanadium Alkoxides / Haptens / NMR, 51V