1993
DOI: 10.1021/ic00073a009
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Methyltrioxorhenium-catalyzed oxidation of a (thiolato)cobalt(III) complex by hydrogen peroxide

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Cited by 64 publications
(26 citation statements)
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“…Epoxidation of cyclooctene catalysed by compounds ijCpMoIJO 2 )IJO)R] R = Cl (4), CH 3 (5), CF 3 (6) Stoichiometric addition of cyclooctene to the peroxo species ijCpMoIJO 2 )IJO)R] R = Cl, CH 3 , CF 3 shows that addition of TBHP is essential as no conversion is observed in contrast to the known activity of the (isolated) rhenium bis-peroxo species obtained from MTO during catalytic epoxidation with H 2 O 2 . 4,35 Comparison of catalytic activities in cyclooctene epoxidation shows that the fluorinated compound 6 is more active than compounds 4 and 5 (Fig. 6).…”
Section: Catalysis Science and Technology Papermentioning
confidence: 99%
“…Epoxidation of cyclooctene catalysed by compounds ijCpMoIJO 2 )IJO)R] R = Cl (4), CH 3 (5), CF 3 (6) Stoichiometric addition of cyclooctene to the peroxo species ijCpMoIJO 2 )IJO)R] R = Cl, CH 3 , CF 3 shows that addition of TBHP is essential as no conversion is observed in contrast to the known activity of the (isolated) rhenium bis-peroxo species obtained from MTO during catalytic epoxidation with H 2 O 2 . 4,35 Comparison of catalytic activities in cyclooctene epoxidation shows that the fluorinated compound 6 is more active than compounds 4 and 5 (Fig. 6).…”
Section: Catalysis Science and Technology Papermentioning
confidence: 99%
“…The reaction of hydrogen peroxide and the cobalt thiolate complex, [Co(en) 2 (SCH 2 CH 2 NH 2 )] 2ϩ (here, Co(SR) 2ϩ ; en ϭ ethane-1,2-diamine) to give first the sulfenato complex, then much more slowly to give the sulfinato complex, was found to be catalyzed by methylrheniumtrioxide, ReMeO 3 [55,56]: The first step in this catalytic oxidation is the binding of peroxide to the rhenium. The structural evidence unequivocally demonstrates that the catalytically active species in solution contains one or two chelated peroxide dianions [57 -63].…”
Section: Cobalt(ii) Complexesmentioning
confidence: 99%
“…Estos materiales poseen propiedades ácido-base y redox que pueden ser aprovechadas para catalizar distintas reacciones en química orgánica. Así por ejemplo, HPA´s como el H 3 PM 12 O 40 (donde M puede ser W o Mo) catalizan la reacción de Prins entre estireno y formaldehído para la formación de 1,3-dioxanos en fase acuosa mediante un mecanismo ácido de Lewis [112]. Así mismo, los HPA´s son capaces de promover reacciones en fase líquida en medios orgánicos o en sistemas bifásicos orgánico/agua comportándose como un catalizador cuasi-heterogéneo, siendo efectivos en la oxidación de alquenos [113,114], alcoholes [115] y sulfuros [116] como oxidante [117,118].…”
Section: +unclassified
“…Esquema de la estructura tipo esmectita de montmorillonita. Así, las arcillas pilareadas se han utilizado como catalizadores sólidos en reacciones de acilación y alquilación de Friedel-Crafts, entre muchas otras [112,125]; y de forma más general, en procesos donde reemplace al H 2 SO 4 concentrado como catalizador, siendo necesaria en estos casos la reducción del contenido de H 2 O del medio para evitar reacciones secundarias de hidrólisis. En relación con sus propiedades redox, se ha descrito que montmorillonitas pilareadas con un complejo de Ti catalizan la oxidación de sulfuros pro-quirales a sus correspondientes sulfóxidos en presencia de hidroperóxido de t-butilo (estequiométrico) y un auxiliar quiral [130].…”
Section: ◊ Arcillas Y Arcillas Pilareadasunclassified
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