- Functionalized Oxovanadium Alkoxides - Potential Haptens
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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
- Hillerns, Frank,Rehder, Dieter
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p. 2249 - 2254
(2007/10/02)
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- Method for preparation of alkyl vanadates
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Alkyl vanadates are prepared by the reaction of vanadium pentoxide and an alkyl alcohol while heating in the presence of an alkane azeotroping agent to assist in the removal of water by-product.
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