Mo(CO) 3(NCMe)(PPh 3) 2: Synthesis, X-ray structure and evaluation of its catalytic activity for the homogeneous hydrogenation of olefins and their mixtures

Baricelli. P.J.; Melean L.G.; Ricardes, S; Guanipa, V; Rodríguez, M.; Romero C.; Pardey A.J.; Moya S.; Rosales M.

Keywords: catalysis, 1-hexene, olefins, hydrogenation, hydrocarbons, mixtures, synthesis, x-ray, complex, structure, styrene, nmr, molybdenum, media, catalyst, precursors, mercury, activity, 1-butene, mild, compounds, of, Reaction, (chemical), conditions, and, (metal), Catalytic, Homogeneous, Equimolar, Butenes, Cyclohexenes, Dibenzothiophenes

Abstract

The complex Mo(CO) 3(NCMe)(PPh 3) 2, was synthesized by the reaction of Mo(NCMe) 3(CO) 3 with two equivalents of PPh 3 and characterized by UV-Vis, IR, NMR and X-ray diffraction. This complex was used as a catalyst precursor for the hydrogenation of 1-hexene, styrene, cyclohexene and 2,3-dimethyl-1-butene and their mixtures under moderate conditions in homogeneous media. Under mild reaction conditions (T = 373 K, P = 60 atm), the substrates showed the following reactivity order: styrene > 1-hexene > cyclohexene > 2,3-dimethyl-1-butene. A quaternary equimolar mixture showed a different hydrogenation order: 1-hexene > cyclohexene > styrene > 2,3-dimethyl-1-butene; the presence of dibenzothiophene or mercury does not interfere with the activity of the catalyst. © 2009 Elsevier B.V. All rights reserved.

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Título de la Revista: JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volumen: 694
Número: 21
Editorial: Elsevier BV
Fecha de publicación: 2009
Página de inicio: 3381
Página final: 3385
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-68949221723&partnerID=q2rCbXpz