Hydrogen activation by high-valent oxo-molybdenum(vi) and -rhenium(vii) and -(v) compounds

Patrícia M. Reis; Paulo Jorge Costa; Carlos C. Romão; José A. Fernandes; Maria José Calhorda; Beatriz Royo

doi:10.1039/b719375k

Hydrogen activation by high-valent oxo-molybdenum(vi) and -rhenium(vii) and -(v) compounds

Patrícia M. Reis, Paulo Jorge Costa, Carlos C. Romão, José A. Fernandes, Maria José Calhorda, Beatriz Royo

Research output: Contribution to journal › Article › peer-review

77 Citations (Scopus)

Abstract

The high-valent oxo-molybdenum(vi) and -rhenium(vii) and -(v) derivatives MoO₂Cl₂, ReCH₃O₃ (MTO) and ReIO ₂(PPh₃)₂ catalyze the selective hydrogenation of alkynes to alkenes at 80 °C under 40 atm of pressure. The reduction of sulfoxides to sulfides has also been performed by oxo-rhenium and -molybdenum complexes using hydrogen as a reducing agent. Activation of hydrogen by MoO ₂Cl₂ and MoO₂(S₂CNEt ₂)₂ was shown by means of DFT calculations to proceed by H-H addition to the Mo=O bond, followed by hydride migration to yield a water complex.

Original language	English
Pages (from-to)	1727-1733
Number of pages	7
Journal	Dalton Transactions
Issue number	13
DOIs	https://doi.org/10.1039/b719375k
Publication status	Published - 2008

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abstract = "The high-valent oxo-molybdenum(vi) and -rhenium(vii) and -(v) derivatives MoO2Cl2, ReCH3O3 (MTO) and ReIO 2(PPh3)2 catalyze the selective hydrogenation of alkynes to alkenes at 80 °C under 40 atm of pressure. The reduction of sulfoxides to sulfides has also been performed by oxo-rhenium and -molybdenum complexes using hydrogen as a reducing agent. Activation of hydrogen by MoO 2Cl2 and MoO2(S2CNEt 2)2 was shown by means of DFT calculations to proceed by H-H addition to the Mo=O bond, followed by hydride migration to yield a water complex.",

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T1 - Hydrogen activation by high-valent oxo-molybdenum(vi) and -rhenium(vii) and -(v) compounds

AU - Reis, Patrícia M.

AU - Costa, Paulo Jorge

AU - Romão, Carlos C.

AU - Fernandes, José A.

AU - Calhorda, Maria José

AU - Royo, Beatriz

PY - 2008

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AB - The high-valent oxo-molybdenum(vi) and -rhenium(vii) and -(v) derivatives MoO2Cl2, ReCH3O3 (MTO) and ReIO 2(PPh3)2 catalyze the selective hydrogenation of alkynes to alkenes at 80 °C under 40 atm of pressure. The reduction of sulfoxides to sulfides has also been performed by oxo-rhenium and -molybdenum complexes using hydrogen as a reducing agent. Activation of hydrogen by MoO 2Cl2 and MoO2(S2CNEt 2)2 was shown by means of DFT calculations to proceed by H-H addition to the Mo=O bond, followed by hydride migration to yield a water complex.

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Hydrogen activation by high-valent oxo-molybdenum(vi) and -rhenium(vii) and -(v) compounds

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