The reactivity of cyclo-(P5tBu4)– towards group 13, 14 and 15 metal chlorides: complexation and formation of cyclooligophosphanes, {cyclo-(P5tBu4)}2 and {cyclo-(P4tBu3)PtBu}2, by reductive elimination

Schisler, Andrea; Lönnecke, Peter; Gelbrich, Thomas; Hey‐Hawkins, Evamarie

doi:10.1039/b407736a

Cited by 33 publications

(40 citation statements)

References 47 publications

(55 reference statements)

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“…According to the spectroscopic data and based on the steric requirements of the tert-butyl groups, only one of the four conformations, the all-trans isomer, is preferred as was previously observed for related compounds [7,8,9] and confirmed by X-ray diffraction studies on 1b (Section 2.2). Additionally, the 1 H NMR and 13 C{ 1 H} NMR spectra of 1b showed the expected signals.…”

Section: Synthesis and Spectroscopic Studiessupporting

confidence: 51%

[Li(tmeda)2][cyclo-(P5But4)]: An unusual ion-separated lithium oligophosphanide

Herrero

Gómez‐Ruiz

Dávalos

et al. 2010

Comptes Rendus Chimie

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Section: Synthesis and Spectroscopic Studiessupporting

confidence: 51%

[Li(tmeda)2][cyclo-(P5But4)]: An unusual ion-separated lithium oligophosphanide

Herrero

Gómez‐Ruiz

Dávalos

et al. 2010

Comptes Rendus Chimie

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“…The Pd complex 3 is unstable in solution and decomposes slowly, even at −27 °C, over 12 months with formation of black palladium metal and { cyclo ‐(P 4 t Bu 3 )P t Bu} 2 . Similarly, reductive elimination is observed in the reactions of SnCl 2 , PbCl 2 and BiCl 3 with 1 10…”

Section: Resultsmentioning

confidence: 65%

The Versatile Reactivity of cyclo‐(P₅tBu₄)⁻ with Complexes of the Nickel Triad

Gómez‐Ruiz

Schisler

Lönnecke

et al. 2007

Chemistry A European J

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Na[cyclo-(P(5)tBu(4))] (1) reacts with [NiCl(2)(PEt(3))(2)] and [PdCl(2)(PMe(2)Ph)(2)] with elimination of tBuCl and formation of the corresponding metal(0) cyclopentaphosphene complexes [Ni{cyclo-(P(5)tBu(3))}(PEt(3))(2)] (2) and [Pd{cyclo-(P(5)tBu(3))}(PMe(2)Ph)(2)] (3). In contrast, complexes with the more labile triphenylphosphane ligand, such as [MCl(2)(PPh(3))(2)] (M=Ni, Pd), react with 1 with formation of [NiCl{cyclo-(P(5)tBu(4))}(PPh(3))] (4) and [Pd{cyclo-(P(5)tBu(4))}(2)] (5), respectively, in which the cyclo-(P(5)tBu(4)) ligand is intact. In the case of palladium, the cyclopentaphosphene complex [Pd{cyclo-(P(5)tBu(3))}(PPh(3))(2)] (6) in trace amounts is also formed. However, [Ni{cyclo-(P(5)tBu(4))}(2)] (7) is easily obtained by reaction of two equivalents of 1 and one equivalent of [NiCl(2)(bipy)] at room temperature. Complex 7 rearranges on heating in n-hexane or toluene to the previously unknown [Ni{cyclo-(P(5)tBu(4))PtBu}{cyclo-(P(4)tBu(3))}] (8), which presumably is formed via the intermediate [Ni{cyclo-(P(5)tBu(4))}{cyclo-(P(4)tBu(3))PtBu}], which, after an unexpected and unprecedented phosphanediide migration, gives 8, but always as an inseparable mixture with 7. In the reaction of 1 with [PtCl(2)(PPh(3))(2)], ring contraction and formation of [PtCl{cyclo-(P(4)tBu(3))PtBu}(PMe(2)Ph)] (9) is observed. Complexes 3-5 and 7-9 were characterised by (31)P NMR spectroscopy, and X-ray structures were obtained for 5-9.

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“…While the 1:1 reaction of the sodium salt [Na ( [55]. The phosphanide complexes 64 and 65 were isolated and characterized by 31 P{ 1 H} NMR spectroscopy and other analytical techniques.…”

Section: Reactivity Of the Cyclo-(p 5 Bu T 4 ) − Ionmentioning

confidence: 99%