1101-41-3Relevant articles and documents
A study of the reactivity of secondary phosphanes with radical sources: A new dehydrocoupling reaction
Baker, Robert J.,Hashem, Emtithal
, p. 1081 - 1085 (2010)
The reactions of secondary phosphanes with radical sources have been investigated.Astoichiometric dehydrocoupling of Ph2PH with 1,1′-azobis[cyclohexane-1-carbonitrile] (VAZO 88) affords tetraphenyldiphosphane in good yields, whilst reduction of the nitrosyl function was observed upon using 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO). Dialkylphosphane - borane adducts also undergo a dehydrocoupling reaction in the presence of VAZO 88 to form R4P2.
SYNTHESIS AND COORDINATING PROPERTIES OF (o-DIPHENYLPHOSPHINOBENZYL)DIMETHYLSILANE
Ang, H. G.,Lau, P. T.
, p. 285 - 292 (1985)
The reactions of (o-diphenylphosphinobenzyl)dimethylsilane with manganese and rhenium carbonyl afford o-(C6H5)2PC6H4CH2Si(CH3)2M(CO)4 (M=Mn, Re), in which the ligand behaves as a chelate.Similar reactions occur with ?-cyclopentadienemolybdenum tricarbonyl dimer to give o-(C6H5)2PC6H4CH2Si(CH3)2Mo(?-C5H5)(CO)2.However, photolysis of a mixture of the ligand with manganese carbonyl yielded o-(C6H5)2PC6H4CH2Si(H)(CH3)2Mn2(CO)9.
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Abraham,van Wazer
, p. 41,42,43 (1975)
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Phosphanylphosphido and phosphanylphosphinidene complexes of zirconium(IV) supported by bidentate N,N ligands
Zauliczny, Mateusz,Grubba, Rafa?,Ponikiewski, ?ukasz,Pikies, Jerzy
, p. 353 - 360 (2017)
Phosphanylphosphido complexes of zirconium, [NacNacZrCl2(η2-R2P–PSiMe3)] (R?=?t-Bu, i-Pr), were synthesized in the reaction of R2P–P(SiMe3)Li·nTHF (R?=?t-Bu, i-Pr) with a β-diketiminate complex, [NacNacZrCl3], in toluene. Elimination of Me3SiCl from [NacNacZrCl2(η2-R2P–PSiMe3)] provided the phosphanylphosphinidene complexes [NacNacZrCl(η2-R2P–P)] (R?=?t-Bu, i-Pr). Moreover, the reaction of [NacNacZrCl2(η2-R2P–PSiMe3)] with R2P–P(SiMe3)Li·nTHF yielded the phosphanylphosphinidenoid complexes [NacNacZrCl2(η2-R2P–PLi)] (R?=?t-Bu, i-Pr). The same reaction, but in the presence of 12-crown-4, gave rise to the phosphanylphosphinidene complexes [NacNacZrCl(η2-R2P–P)]. The X-ray structures of [NacNacZrCl2(η2-i-Pr2P–PSiMe3)] and [NacNacZrCl(η2-t-Bu2P–P)] revealed that the R2P-P ligands exhibit side-on coordination to the metal center. From the reaction of i-Pr2P–P(SiMe3)Li·3THF with [{PhN(CH2)3NPh)}ZrCl2], a triple-core, anionic, phosphanylphosphinidene complex, [{PhN(CH2)3NPh)}Zr3Cl2(μ2-Cl)(μ2-i-Pr2P–P)2(μ3-i-Pr2P–P)2]?[Li(DME)3]+, was obtained in which the i-Pr2P–P ligands exhibit bridging coordination.
Calcium-centred phosphine oxide reactivity: P-C metathesis, reduction and P-P coupling
Hill, Michael S.,Mahon, Mary F.,Robinson, Thomas P.
, p. 2498 - 2500 (2010)
Reactions of triphenylphosphine oxide and diphenylphosphine oxide with calcium alkyls and amides in the presence of PhSiH3 occur to give P-C bond cleavage, P(v) to P(iii) reduction and P-P coupling. The Royal Society of Chemistry.
Reactions of [Cp2Ti(η2-Me3SiC2SiMe3)] with 1,4-Bis(diphenylphosphanyl)but-2-yne: Coupling and Isomerization versus Phosphorylation
Altenburger, Kai,Rei?, Fabian,Schubert, Kathleen,Baumann, Wolfgang,Spannenberg, Anke,Arndt, Perdita,Rosenthal, Uwe
, p. 1709 - 1715 (2015)
The reactions of [Cp2Ti(η2-Me3SiC2SiMe3)] (1; Cp = η5-cyclopentadienyl) with 1,4-bis(diphenylphosphanyl)but-2-yne (2) have been investigated and found to yield a mixture of products. From these, through the coupling of 2, the tetrasubstituted titanacyclopentadiene [Cp2Ti(CCH2PPh2)4] (3) was isolated. In addition, small amounts of very unusual complexes were obtained and characterized. In one case, the substrate 2 isomerized to the allene Ph2PC(H)=C=C(H)CH2PPh2, which formed the complex [Cp2Ti{η3-Ph2PC(H)=C=C(H)CH2PPh2}] (4) through the coordination of a double bond and one of the phosphorus atoms. Another complex, [Cp2Ti{-C(CH2PPh2)=C(CH2PPh2)P(Ph2)H-}] (5), was identified to be the result of a formal hydrophosphorylation of the substrate 2 by HPPh2, and features a Ti-H-P bridge. It is not clear how HPPh2 was formed. One possible explanation is the dehydrophosphorylation of the substrate with the formation of HPPh2 and the butatriene H2C=C=C=C(H)PPh2 [tautomer of the but-2-en-3-yne HC≡C-CH=C(H)PPh2]. The molecular structures of complexes 4 and 5 were determined by X-ray analysis.
CHLOR-FLUOR -AUSTAUSCHREAKTIONEN MIT TRIALKYLFLUOR-PHOSPHORANEN
Bartsch, R.,Schmutzler, R.,Spiegel, G. U.,Stelzer, O.
, p. 107 - 118 (1987)
Trialkyldifluorophosphoranes R3PF2 (R = iPr, nBu) were found to react with chlorides or organoelement chlorides, EClm or ERm-zClz (EIV, m = 4, z = 1,2; EV, m = 3, z = 1,2) of elements belonging to main groups IV and V with chlorine/fluorine exchange to form the halophosphonium salts +Cl- (X = F, Cl) and the fluoro derivatives, EFm or ERm-zFz.With AlCl3 ionic products of composition are obtained.The transition metal chlorides, NiCl2, PdCl2 NiCl2(PMe3)2, and CoCl2 were found to be less reactive.Chlorine/fluorine exchange has been observed only the case of CoCl2.
Synthesis and solid-state structures of gold(i) complexes of diphosphines
Molitor, Sebastian,Mahler, Christoph,Gessner, Viktoria H.
, p. 6467 - 6474 (2016)
A series of functionalized diphosphine bisgold(i) complexes have been prepared from the corresponding diphosphine ligands Ar4P2 (Ar = MeC6H4, MeOC6H4, Me2NC6H4) and characterized by NMR spectroscopy and APCI mass spectrometry. Single-crystal X-ray diffraction analyses were performed to study the presence and importance of unsupported aurophilic interactions for the structure formation of these compounds. In general, the complexes featured monomeric structures with an antiperiplanar arrangement of the two AuCl units. The crystal packing greatly depended on the position of the substitution pattern (ortho vs. para). While for the ortho-substituted systems (OMe and NMe2) no ordered 3-dimensional networks were observed, the para-functionalized compounds formed regular layer structures. Here, aurophilic Au?Au interactions only played a minor role compared to intermolecular π?π interactions and hydrogen bonds.
Visible-Light-Promoted Unsymmetrical Phosphine Synthesis from Benzylamines
Cui, Penglei,Li, Sida,Wang, Xianjin,Li, Ming,Wang, Chun,Wu, Lipeng
supporting information, p. 1566 - 1570 (2022/03/01)
Herein, by applying visible-light photoredox catalysis, we have achieved the catalytic deaminative alkylation of diphenylphosphine and phenyl phosphine with benzylamine-derived Katritzky salts at room temperature. The use of Eosin Y as photoredox catalyst and visible light can largely promote the reaction. A series of unsymmetrical tertiary phosphines were successfully synthesized, including phosphines with three different substituents that are otherwise difficult to obtain.
Atypical and Asymmetric 1,3-P,N Ligands: Synthesis, Coordination and Catalytic Performance of Cycloiminophosphanes
Rong, Mark K.,Holtrop, Flip,Bobylev, Eduard O.,Nieger, Martin,Ehlers, Andreas W.,Slootweg, J. Chris,Lammertsma, Koop
supporting information, p. 14007 - 14016 (2021/09/09)
Novel seven-membered cyclic imine-based 1,3-P,N ligands were obtained by capturing a Beckmann nitrilium ion intermediate generated in situ from cyclohexanone with benzotriazole, and then displacing it by a secondary phosphane under triflic acid promotion. These “cycloiminophosphanes” possess flexible non-isomerizable tetrahydroazepine rings with a high basicity; this sets them apart from previously reported iminophophanes. The donor strength of the ligands was investigated by using their P-κ1- and P,N-κ2-tungsten(0) carbonyl complexes, by determining the IR frequency of the trans-CO ligands. Complexes with [RhCp*Cl2]2 demonstrated the hemilability of the ligands, giving a dynamic equilibrium of κ1 and κ2 species; treatment with AgOTf gives full conversion to the κ2 complex. The potential for catalysis was shown in the RuII-catalyzed, solvent-free hydration of benzonitrile and the RuII- and IrI-catalyzed transfer hydrogenation of cyclohexanone in isopropanol. Finally, to enable access to asymmetric catalysts, chiral cycloiminophosphanes were prepared from l-menthone, as well as their P,N-κ2-RhIII and a P-κ1-RuII complexes.
Room-temperature reduction of sulfur hexafluoride with metal phosphides
Huchenski, Blake S. N.,Speed, Alexander W. H.
, p. 7128 - 7131 (2021/07/28)
Upon treatment with sulfur hexafluoride, alkali metal diphenyl or dicyclohexyl phosphides are oxidized within seconds to tetraphenyl or tetracyclohexyl diphosphines. When bulky di-tert-butylphosphide is employed, fluorophosphine intermediates are detected. This is the first reported reaction of sulfur hexafluoride with metal phosphides, and a rare example of reactivity of sulfur hexafluoride at ambient temperature. This journal is
