Synthesis and Properties of Di-isopropylamino Derivatives of Diphosphanes and Triphosphanes: The X-Ray Structure of ( i Pr2N)2P–P(SiMe3)2

Domańska-Babul, Wioleta; Baranowska, Katarzyna; Pikies, Jerzy

doi:10.1080/10426500902718273

Cited by 8 publications

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“…Previous investigations , showed that the synthesis of triphosphanes can be realized via the reaction of lithium phosphinophosphides with chlorophosphanes. In this context, the poor stability of the lithiated diphosphane precursors led to the formation of problematic side products . Additionally, to the best of our knowledge, only silyl-substituted triphosphanes could be prepared via this route.…”

Section: Resultsmentioning

confidence: 99%

“…Lithium phosphinophosphides are relatively well-known species with synthetic applications as transfer reagents in transition-metal chemistry − or as building blocks for the synthesis of P-rich compounds. − These species can be accessed via the reaction of R 2 P–P(TMS) 2 precursors with organolithium reagents, yielding R 2 P–P(TMS)Li(L) x compounds [L = solvents such as tetrahydrofuran (THF)]. ,, Alternative syntheses involve the conversion of diphosphenes with lithium bases (Scheme ). , The reported lithium phosphinophosphide syntheses also yield significant amounts of side products such as symmetrization products, which drastically reduce the yield of the desired product species. ,,− …”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Stable Potassium Phosphinophosphides and Reaction with Organosilyl Halides and Chlorophosphanes

et al. 2023

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The synthesis of sterically demanding 2,6-bis(2,4,6-trimethylphenyl)phenyl (Ter)-stabilized and H-substituted diphosphanes TerHP–PR2 (4a–4c) via conversion of the phosphide TerPHK (2) with secondary chlorophosphanes ClPR2 (3a–3c, where R = iPr, Ph, and tBu, respectively) is described. The diphosphanes 4a–4c were deprotonated using KH in tetrahydrofuran, selectively yielding the potassium phosphinophosphides K[TerP–PR2] (5a–5c). These phosphinophosphides are stable in solution as well as in the solid state and can be further functionalized via salt-metathesis reactions. Reaction with organosilyl halides selectively yields the silylated diphosphanes Ter(SiR1 2R2)P–P(iPr)2 (6a and 6b, where R1 = R2 = CH3 and R1 = CH3, R2 = Ph, respectively), whereas conversion with chlorophosphanes selectively yields the triphosphanes R1 2P–P(Ter)–P(iPr)2 (7a and 7b, where R = iPr and Ph, respectively).

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of Stable Potassium Phosphinophosphides and Reaction with Organosilyl Halides and Chlorophosphanes

et al. 2023

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From Neutral to Ionic Species: Syntheses and X‐ray Crystallographic and Multinuclear NMR Spectroscopic Studies of Li···P(SiMe₃)–PtBu₂ and Its Solvent Complexes

et al. 2013

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Li(THF) 3 P(SiMe 3 )-PtBu 2 (1) prepared by the reaction of (Me 3 Si) 2 P-PtBu 2 with n-butyllithium in THF has been isolated in good yields. or 12-crown-4, respectively, in solution. The molecular structures of 1-5 were established by single crystal X-ray diffraction. Compound 3 forms a cyclic tetramer with a flat butterfly geometry. Extensive solution NMR spectroscopic investigations have shown that all species except of 3 exist in the same form in solution as in the solid state. Moreover, multinuclear variable-temperature NMR studies showed that 2 is involved in a rapid conversion between conformers at 298 K, which can be slowed down on the NMR time scale at 183 K.

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2358 Chemical Shifts and Coupling Constants for C12H28ClN2P

Kumar

2013

Chemical Shifts and Coupling Constants for Phosphorus-31

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Synthesis and Properties of Di-isopropylamino Derivatives of Diphosphanes and Triphosphanes: The X-Ray Structure of (ⁱPr₂N)₂P–P(SiMe₃)₂

Cited by 8 publications

References 10 publications

Synthesis of Stable Potassium Phosphinophosphides and Reaction with Organosilyl Halides and Chlorophosphanes

Synthesis of Stable Potassium Phosphinophosphides and Reaction with Organosilyl Halides and Chlorophosphanes

From Neutral to Ionic Species: Syntheses and X‐ray Crystallographic and Multinuclear NMR Spectroscopic Studies of Li···P(SiMe₃)–PtBu₂ and Its Solvent Complexes

2358 Chemical Shifts and Coupling Constants for C12H28ClN2P

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Synthesis and Properties of Di-isopropylamino Derivatives of Diphosphanes and Triphosphanes: The X-Ray Structure of ( i Pr2N)2P–P(SiMe3)2

Cited by 8 publications

References 10 publications

Synthesis of Stable Potassium Phosphinophosphides and Reaction with Organosilyl Halides and Chlorophosphanes

Synthesis of Stable Potassium Phosphinophosphides and Reaction with Organosilyl Halides and Chlorophosphanes

From Neutral to Ionic Species: Syntheses and X‐ray Crystallographic and Multinuclear NMR Spectroscopic Studies of Li···P(SiMe3)–PtBu2 and Its Solvent Complexes

2358 Chemical Shifts and Coupling Constants for C12H28ClN2P

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Synthesis and Properties of Di-isopropylamino Derivatives of Diphosphanes and Triphosphanes: The X-Ray Structure of (ⁱPr₂N)₂P–P(SiMe₃)₂

From Neutral to Ionic Species: Syntheses and X‐ray Crystallographic and Multinuclear NMR Spectroscopic Studies of Li···P(SiMe₃)–PtBu₂ and Its Solvent Complexes