Metallcarbonyl‐Synthesen, XXI. Einfache Synthese eines präparativ nützlichen Alkoxy(carbonyl)metallats

Wolfgang A. Herrmann; Dimitrios Mihalios; Karl Öfele; Paul Kiprof; Fawzi Belmedjahed

doi:10.1002/cber.19921250803

Metallcarbonyl‐Synthesen, XXI. Einfache Synthese eines präparativ nützlichen Alkoxy(carbonyl)metallats

Wolfgang A. Herrmann, Dimitrios Mihalios, Karl Öfele, Paul Kiprof, Fawzi Belmedjahed

Chemistry & Biochemistry

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65 Scopus citations

Abstract

Metal Carbonyl Syntheses, XXI. – Straightforward Synthesis of a Synthetically Useful Alkoxy(carbonyl)metallate Anionic methoxy complexes are formed upon carbonylation of ammonium perrhenate in methanol at 230–240°C. Thus, the dinuclear ionic complex [N(CH₃)₄][Re₂(CO)₆(μ‐OCH₃)₃] (2) results in 80% yield at CO pressures of ca. 100 bar, while the trinuclear derivative [N(CH₃)₄][Re₃(CO)₉(μ₃‐OCH₃)₃(μ₃‐OCH₃)] (3) is due to lower pressure conditions (ca. 50 bar); 2 yields the bis(carbene) complex 4 of formula fac‐Re(CO)₃L₂I upon treatment with a bis(imidazolium) iodide, thus demonstrating that carbonylrhenium chemistry not necessarily depends on the availability of Re₂(CO)₁₀.

Original language	German
Pages (from-to)	1795-1799
Number of pages	5
Journal	Chemische Berichte
Volume	125
Issue number	8
DOIs	https://doi.org/10.1002/cber.19921250803
State	Published - Aug 1992

Keywords

Alkoxy carbene, structure of
Carbonyl complexes
Rhenium complexes

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title = "Metallcarbonyl‐Synthesen, XXI. Einfache Synthese eines pr{\"a}parativ n{\"u}tzlichen Alkoxy(carbonyl)metallats",

abstract = "Metal Carbonyl Syntheses, XXI. – Straightforward Synthesis of a Synthetically Useful Alkoxy(carbonyl)metallate Anionic methoxy complexes are formed upon carbonylation of ammonium perrhenate in methanol at 230–240°C. Thus, the dinuclear ionic complex [N(CH3)4][Re2(CO)6(μ‐OCH3)3] (2) results in 80% yield at CO pressures of ca. 100 bar, while the trinuclear derivative [N(CH3)4][Re3(CO)9(μ3‐OCH3)3(μ3‐OCH3)] (3) is due to lower pressure conditions (ca. 50 bar); 2 yields the bis(carbene) complex 4 of formula fac‐Re(CO)3L2I upon treatment with a bis(imidazolium) iodide, thus demonstrating that carbonylrhenium chemistry not necessarily depends on the availability of Re2(CO)10.",

keywords = "Alkoxy carbene, structure of, Carbonyl complexes, Rhenium complexes",

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AU - Herrmann, Wolfgang A.

AU - Mihalios, Dimitrios

AU - Öfele, Karl

AU - Kiprof, Paul

AU - Belmedjahed, Fawzi

PY - 1992/8

Y1 - 1992/8

N2 - Metal Carbonyl Syntheses, XXI. – Straightforward Synthesis of a Synthetically Useful Alkoxy(carbonyl)metallate Anionic methoxy complexes are formed upon carbonylation of ammonium perrhenate in methanol at 230–240°C. Thus, the dinuclear ionic complex [N(CH3)4][Re2(CO)6(μ‐OCH3)3] (2) results in 80% yield at CO pressures of ca. 100 bar, while the trinuclear derivative [N(CH3)4][Re3(CO)9(μ3‐OCH3)3(μ3‐OCH3)] (3) is due to lower pressure conditions (ca. 50 bar); 2 yields the bis(carbene) complex 4 of formula fac‐Re(CO)3L2I upon treatment with a bis(imidazolium) iodide, thus demonstrating that carbonylrhenium chemistry not necessarily depends on the availability of Re2(CO)10.

AB - Metal Carbonyl Syntheses, XXI. – Straightforward Synthesis of a Synthetically Useful Alkoxy(carbonyl)metallate Anionic methoxy complexes are formed upon carbonylation of ammonium perrhenate in methanol at 230–240°C. Thus, the dinuclear ionic complex [N(CH3)4][Re2(CO)6(μ‐OCH3)3] (2) results in 80% yield at CO pressures of ca. 100 bar, while the trinuclear derivative [N(CH3)4][Re3(CO)9(μ3‐OCH3)3(μ3‐OCH3)] (3) is due to lower pressure conditions (ca. 50 bar); 2 yields the bis(carbene) complex 4 of formula fac‐Re(CO)3L2I upon treatment with a bis(imidazolium) iodide, thus demonstrating that carbonylrhenium chemistry not necessarily depends on the availability of Re2(CO)10.

KW - Alkoxy carbene, structure of

KW - Carbonyl complexes

KW - Rhenium complexes

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Metallcarbonyl‐Synthesen, XXI. Einfache Synthese eines präparativ nützlichen Alkoxy(carbonyl)metallats

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Keywords

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