Oxodiperoxo complexes

The conversion of oximes to nitroalkanes has been achieved by employing an Mo(IV) oxodiperoxo complex as oxidant in acetonitrile. Both aldoximes and ketoximes are converted into the corresponding nitroalkanes (Eqs. 2.61 and 2.62),123 representing a complementary synthetic route to the use of the UHP method. 

Schwendt, P. and M. Pisarcik. 1990. Raman spectral study on the structure of vana-dium(V) oxodiperoxo complexes in aqueous solution. Spectrochim. Acta 46A 397-399. 

Figure 14.17 Structures of (a) the tetraperoxochromate(V) ion [Cr (02)4] , (b) the pyridine oxodiperoxo-chromium(VI) complex [Cr 0(02)2py], and (c) the triamminodiperoxochromium(IV) complex [Cr" (NH3)3(02)2] showing important interatomic distances and angles. (This last compound was originally described as a chromium(II) superoxo complex [Ci (NH3)3(02)2] on the basis of an apparent 0-0 distance of 131 pm/ and is a salutary example of the factual and interpretative errors that can arise even in X-ray diffraction studies. " ...

Scheme 9 Heterogenisation of dioxo and oxodiperoxo molybdenum complexes on MCM functionalised with M-ligands or N,AT-ligands...

Shaver, A., J.B. Ng, D.A. Hall, B. Soo Lum, and B.I. Posner. 1993. Insulin-mimetic peroxo vanadium complexes Preparation and structure of potassium oxodiper-oxo(pyridine-2-carboxylato)vanadate(V), K2[V0(02)2(C5H4NC00)]-2H20, and potassium oxodiperoxo(3-hydroxypyridine-2-carboxylato)vanadate(V), K2[V0(02)2 (0HC4H3NC00)]3H20, and their reactions with cysteine. Inorg. Chem. 32 3109-3113. 

Peroxide complexes are intermediates in industrially important epoxidation reactions and research in this area is focused on mechanism and the development of regioselective, stereoselective, and environmentally benign industrial processes. Oxodiperoxo and oxoperoxo complexes will be discussed in that order. Reviews by Dickman and Pope454 and Caradonna455 provide full accounts of peroxo complexes and their use as oxidants in the period prior to 1994. 

Quantum yields of formation of OaC Ag) obtained by irradiation of benzene solutions of various flavonoids, and by irradiation of oxodiperoxo-molybde-num(VI) complexes of the type (L-L)MoO(02>2 (L-L = 2-(l-alkyl-3-pyrazolyl)-pyridine, alkyl = Bu, n-octyl, n-octadecyl L-L = 2-(3-n-octyl-2-... 

Jia, M. and Thiel, W., (2002). Oxodiperoxo Molybdenum Modified Mesoporous MCM-41 Materials for the Catalytic Epoxidation of Cyclooctene, Chem. Commun, 20, pp. 2392-2393 Jia, M., Seifert, A. and Thiel, W., (2003). Mesoporous MCM-41 Materials Modified with Oxodiperoxo Molybdenum Complexes Efficient Catalysts for the Epoxidation of Cyclooctene, Chem. Mater., 15, pp. 2174-2180. 

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