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.
Room-temperature reduction of sulfur hexafluoride with metal phosphides
Huchenski, Blake S. N.,Speed, Alexander W. H.
supporting information, 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
Synthesis of 3a,6a-diaza-1,4-diphosphapentalenes and their halogen derivatives. Specific features of the structure and behavior in solutions
Baranov, E. V.,Fukin, G. K.,Grishin, M. D.,Khristolyubova, A. V.,Kornev, A. N.,Panova, Yu. S.,Sushev, V. V.,Zolotareva, N. V.
, p. 1973 - 1986 (2021/11/05)
Such ketazines as azines of acetophenone and its substituted derivatives (p-F, m-Cl, p-I, p-Me, p-OMe), acetone, dibenzyl ketone, propiophenone, and indan-2-one were studied in the reaction with phosphorus(???) chloride. The possibility of the formation of 1,4-dichloro-3a,6a-diaza-1,4-diphosphapentalenes is largely determined by the nature of the starting ketazine. Diazadiphosphapentalene dichlorides exist in solution as a mixture of cis- and trans-isomers, but crystallize exclusively as 1,4-trans-isomers. Reduction of 3a,6a-diaza-1,4-diphosphapentalene dichlorides with manganese in tetrahydrofuran gives the corresponding diazadiphosphapentalenes in 52–63% yield. The electrochemical properties of the obtained compounds were studied by cyclic voltammetry. Two dichlorides of 3a,6a-diaza-1,4-diphosphapentalenes were found to have anomalous oxidation potentials of 0.29 and 0.13 V related to the formation of free diazadiphosphapentalenes in solution as a result of disproportionation under the influence of the donor solvent, which was confirmed by 31P NMR spectroscopy, electronic absorption spectroscopy, and independent syntheses.
