Synthesis and reactivity of tethered η1:η6-(phosphinoarene)ruthenium bichlorides

Bruno Therrien; Thomas R. Ward; Melanie Pilkington; Christina Hoffmann; François Gilardoni; Jacques Weber

doi:10.1021/om970735l

Synthesis and reactivity of tethered η¹:η⁶-(phosphinoarene)ruthenium bichlorides

Bruno Therrien, Thomas R. Ward, Melanie Pilkington, Christina Hoffmann, François Gilardoni, Jacques Weber

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Abstract

The coordination properties of ortho- and meta-substituted [(2-diphenylphosphanylethyl)-phenyl]methanol 4a and 4b toward ruthenium(II) have been investigated. To ensure coordination of both the arene and the tethered phosphine, the labile ruthenium arene dimer [RuCl₂(EtO₂CC₆H₅)]₂ (7) was synthesized and structurally characterized. Both the ortho and meta isomers [Ru(4a)Cl₂] (9a) and [Ru(4b)Cl₂] (9b) were characterized by X-ray crystallography. The lack of reactivity of the benzylic alcohol functionality in complexes 9a and 9b toward various P and C electrophiles is rationalized with extended Hückel calculations.

Original language	English
Pages (from-to)	330-337
Number of pages	8
Journal	Organometallics
Volume	17
Issue number	3
DOIs	https://doi.org/10.1021/om970735l
State	Published - Feb 2 1998
Externally published	Yes

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title = "Synthesis and reactivity of tethered η1:η6-(phosphinoarene)ruthenium bichlorides",

abstract = "The coordination properties of ortho- and meta-substituted [(2-diphenylphosphanylethyl)-phenyl]methanol 4a and 4b toward ruthenium(II) have been investigated. To ensure coordination of both the arene and the tethered phosphine, the labile ruthenium arene dimer [RuCl2(EtO2CC6H5)]2 (7) was synthesized and structurally characterized. Both the ortho and meta isomers [Ru(4a)Cl2] (9a) and [Ru(4b)Cl2] (9b) were characterized by X-ray crystallography. The lack of reactivity of the benzylic alcohol functionality in complexes 9a and 9b toward various P and C electrophiles is rationalized with extended H{\"u}ckel calculations.",

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T1 - Synthesis and reactivity of tethered η1:η6-(phosphinoarene)ruthenium bichlorides

AU - Therrien, Bruno

AU - Ward, Thomas R.

AU - Pilkington, Melanie

AU - Hoffmann, Christina

AU - Gilardoni, François

AU - Weber, Jacques

PY - 1998/2/2

Y1 - 1998/2/2

N2 - The coordination properties of ortho- and meta-substituted [(2-diphenylphosphanylethyl)-phenyl]methanol 4a and 4b toward ruthenium(II) have been investigated. To ensure coordination of both the arene and the tethered phosphine, the labile ruthenium arene dimer [RuCl2(EtO2CC6H5)]2 (7) was synthesized and structurally characterized. Both the ortho and meta isomers [Ru(4a)Cl2] (9a) and [Ru(4b)Cl2] (9b) were characterized by X-ray crystallography. The lack of reactivity of the benzylic alcohol functionality in complexes 9a and 9b toward various P and C electrophiles is rationalized with extended Hückel calculations.

AB - The coordination properties of ortho- and meta-substituted [(2-diphenylphosphanylethyl)-phenyl]methanol 4a and 4b toward ruthenium(II) have been investigated. To ensure coordination of both the arene and the tethered phosphine, the labile ruthenium arene dimer [RuCl2(EtO2CC6H5)]2 (7) was synthesized and structurally characterized. Both the ortho and meta isomers [Ru(4a)Cl2] (9a) and [Ru(4b)Cl2] (9b) were characterized by X-ray crystallography. The lack of reactivity of the benzylic alcohol functionality in complexes 9a and 9b toward various P and C electrophiles is rationalized with extended Hückel calculations.

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Synthesis and reactivity of tethered η¹:η⁶-(phosphinoarene)ruthenium bichlorides

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