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Dalton Transactions

The international journal for inorganic, organometallic and bioinorganic chemistry



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Dalton Trans., 2009, 9708 - 9711, DOI: 10.1039/b913823d

Tetranuclear vanadium complex, (VO)4(hpic)4: a recyclable catalyst for oxidation of benzyl alcohols with molecular oxygen

Shintaro Kodama, Yukihiro Ueta, Jun Yoshida, Akihiro Nomoto, Shigenobu Yano, Michio Ueshima and Akiya Ogawa

Vanadium(IV) complexes bearing 3-hydroxypicolinic acid (H2hpic) as ligands, VO(Hhpic)2 ( 1) and the cyclic tetramer (VO)4(hpic)4 ( 2), have excellent catalytic ability for the oxidation of a variety of primary and secondary benzyl alcohols with molecular oxygen in acetonitrile or protic solvents such as ethanol and water, affording the corresponding aldehydes and ketones, respectively. Construction of multi-nuclear complexes by the selection of ligands attains higher turnover numbers and recycling of the catalyst.

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