Mechanistic aspects of vanadium catalysed oxidations with peroxides

Salophen and salen oxo vanadium complexes as catalysts of sulfides oxidation with H2O2: Mechanistic insights

“…At this point of the discussion, a better understanding of the results obtained in the reactivity studies can be likely obtained looking also at the classical reaction mechanism [3][4][5][6]11] proposed for metal catalyzed sulfides oxidation with peroxides.…”

“…On the basis of economic and environmental reasons [2,3], oxidation processes with H 2 O 2 are sustainable processes: first of all H 2 O 2 is, besides dioxygen, the most appealing oxidant and the one with the highest "atom efficiency" (47% of active oxygen); in addition, aqueous hydrogen peroxide is readily accessible, safe to use and upon reduction only water is formed [4][5][6][7]. Catalytic systems based on different metals have been employed in conjunction with hydrogen peroxide for oxidation reactions [5].…”

A journey into the electrochemistry of vanadium compounds

“…The properties of vanadium compounds attracted the interest of researchers in different fields, such as biochemistry, medicinal chemistry, and catalysis, leading to several reviews. To cite a few of them, even limiting the period to the years from 2010 to 2014, reviews appeared on the natural occurring vanadium complex amavadin [3], on enzymatic and biochemical properties [4][5][6][7], on medicinal chemistry [8][9][10][11], and of course, on chemical aspects, i.e., synthesis and reactivity [12,13], catalysis and mechanisms [14][15][16][17][18][19][20].…”

Thymol Bromination – A Comparison between Enzymatic and Chemical Catalysis

“…[10] Bromoperoxidases as catalysts for oxidative bromination have been reviewed. [4] A wide variety of vanadium complexes have been synthesized and used as functional models for V-haloperoxidases in order to have a better understanding of the mechanism of action of such enzymes, and these complexes are effective catalyst precursors in various oxidation reactions such as epoxidation of alkenes, oxidation of sulfides, alkanes, arenes and alcohols, as well as in oxidative bromination reactions in the presence of hydrogen peroxide [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] or alkyl hydroperoxides. [26] Inspired by the mechanism of action of V Br PO, a biphasic procedure for bromination reactions was proposed in 1994.…”