14633-92-2Relevant academic research and scientific papers
Synthesis, Characterization, and Reactivity of Functionalized Trinuclear Iron-Sulfur Clusters - A New Class of Bioinspired Hydrogenase Models
Kaiser, Manuel,Kn?r, Günther
, p. 4199 - 4206 (2015)
The air- and moisture-stable iron-sulfur carbonyl clusters Fe3S2(CO)7(dppm) (1) and Fe3S2(CO)7(dppf) (2) carrying the bisphosphine ligands bis(diphenylphosphanyl)methane (dppm) and 1,1′-bis
1,2-Migration of phosphorus-centered anions on ate-type copper carbenoids and its application for the synthesis of new potent phosphine ligands
Kondo, Junichi,Someya, Hidenori,Kinoshita, Hidenori,Shinokubo, Hiroshi,Yorimitsu, Hideki,Oshima, Koichiro
, p. 5713 - 5715 (2005)
(Chemical Equation Presented) Diorganophosphide anions, which usually function as nontransferable ligands on mixed cuprates, undergo smooth 1,2-migration on ate-type copper carbenoids. Phosphinodisilylmethylcoppers prepared by this protocol are converted into the corresponding phosphines, which can be used as bulky, highly basic and air-stable ligands.
Rapid Transfer of Selenium from Tertiary Phosphine Selenides to Tertiary Phosphines
Brown, Douglas H.,Cross, Ronald J.,Keat, Rodney
, p. 871 - 874 (1980)
Selenium transfer between PR3Se and PR3 in solution is rapid on the n.m.r. time scale, and a bimolecular process is indicated.Mixtures of Ph2P(Se)C2H4(Se)PPh2, Ph2(Se)C2H4PPh2, and Ph2PC2H4PPh2 display similar variable-temperature 1H n.m.r. characteristics and their methylene-proton signals coalesce at elevated temperatures.The compound Ph2P(Se)CH2(Se)PPh2 reacts immediately on mixing with Ph2PCH2PPh2 to give exclusively Ph2P(Se)CH2PPh2, whereas solutions of Ph2P(Se)C2H4(Se)PPh2 and Ph2PC2H4PPh2 equilibrate with Ph2P(Se)C2H4PPh2 in 1:1:2 proportions, respectively.The sulphur analogues behave similarly, but react much more slowly.Selenium reacts at ambient temperature with Ph2P(S)CH2PPh2 to form only Ph2P(S)CH2(Se)PPh2, but the action of sulphur on Ph2P(Se)CH2PPh2 leads to a mixture of Ph2P(Se)CH2(Se)PPh2, Ph2P(Se)CH2(S)PPh2, and Ph2P(S)CH2(S)PPh2.Controlling influences and synthetic implications of these reactions are discussed.
Bis(diphenylphosphino)methane disulfide
Carmalt, Aire J.,Cowley, Alan H.,Decken, Andreas,Lawson, Yvonne G.,Norman, Nicholas C.
, p. 931 - 933 (1996)
The title compound, methylenebis(diphenylphosphine sulfide), C25H22P2S2, has been structurally characterized and is found to be isostructural with its selenium analog.
Reactions of a Dilithiomethane with CO and N2O: An Avenue to an Anionic Ketene and a Hexafunctionalized Benzene
Xu, Maotong,Wang, Tongtong,Qu, Zheng-Wang,Grimme, Stefan,Stephan, Douglas W.
supporting information, p. 25281 - 25285 (2021/10/25)
Synthesis of value-added products from simple C1 feedstocks is an attractive alternative avenue to traditional fossil fuels. Hexa-substituted benzene derivatives are highly useful molecules but are often challenging to prepare. Herein, we report that the lithium complex [(Ph2P(S))2CLi2(THF)]2 1 reacts with CO lead to C?C bond formation and migration of a Ph2P(S)-fragment affording 2. Subsequent reaction with N2O results in oxidative cleavage of a P?C bond affording [Ph2P(S)OLi(THF)2]2 4 and the anionic ketene-derivative Ph2P(S)CCOLi(THF)2 5. Heating 5 prompts cyclotrimerization giving the hexa-substituted benzene derivative [Ph2P(S)CCOLi(THF)2]3 6 regioselectively. This transition metal-free protocol to a hexa-substituted benzene is viable on a gram scale and permits the incorporation of 13C labels. The mechanisms of these reactions are detailed via extensive DFT computations.
Synthesis of Phosphine Chalcogenides Under Solvent-Free Conditions Using a Rotary Ball Mill
Kumar, Rajnish,Kumar, Saurabh,Pandey, Madhusudan K.,Kashid, Vitthalrao S.,Radhakrishna, Latchupatula,Balakrishna, Maravanji S.
, p. 1028 - 1037 (2018/02/26)
The mechanochemical technique of ball milling has been applied to the solventless and eco-friendly synthesis of chalcogenides (sulfide and selenide) of a variety of tertiary and aminophosphines. In most of the cases, the products are obtained in almost quantitative yields with high purity by applying a simple workup procedure without using chromatographic techniques or any other purification methods. The scope of this methodology was explored by using a range of phosphines (mono, di and tetra) to synthesize partial as well as mixed chalcogenides. The use of almost equimolar amounts of starting materials and the absence of any byproducts significantly simplifies the product isolation compared with the standard solution state reactions, thus providing a highly atom economic (100 %) method with an ideal E-factor (E = 0). The solid-state reactions were monitored by 31P{1H} NMR spectroscopy. The structures of some of the products are also confirmed by single-crystal X-ray analyses. Although most of the reactions were carried out on ca. 100-mg scale, the scaling up of the reaction did not affect the course of the reaction.
Synthesis and redox behaviour of the chalcogenocarbonyl dianions [(E)C(PPh2S)2]2?: Formation and structures of chalcogenchalcogen bonded dimers and a novel selone
Konu, Jari,Chivers, Tristram,Tuononen, Heikki M.
experimental part, p. 12977 - 12987 (2011/02/22)
The lithium salts of the chalcogenocarbonyl dianions [(E)C(PPh 2S)2]2? (E=S (4b), Se (4c)) were produced through the reactions between Li2[C(PPh2S)2] and elemental chalcogens in the presenc
Epimerization, diastereoselectivity and hemilability in dicationic chiral ruthenium complexes with bidentate (P∧S) bisphosphine monosulfide ligands
Faller,Fontaine, Philip P.
, p. 976 - 982 (2007/10/03)
The binding of heterobidentate P∧S ligands introduces metal-centered chirality to the planar chiral parent complex Ru(η6:η1-NMe2C6H4C6H4PCy2)Cl2.
Unsymmetrical bis-phosphorus ligands. 9. Group 6 metal carbonyl complexes and other derivatives of various (phosphinomethyl)phosphine sulfides
Grim, Samuel O.,Mitchell
, p. 1762 - 1770 (2007/10/06)
Some chemistry of a new class of compounds, (phosphinomethyl)phosphine sulfides, Ph2P(S)CH2PR1R2, is described. Reaction with sulfur gives disulfides, Ph2P(S)CH2P(S)R1R2, with sodium gives unsymmetrical di(tertiary phosphines), Ph2PCH2PR1R2, with alkyl halides gives phosphonium salts, [Ph2P(S)CH2PR1R2R3]X, and with group 6 metal carbonyls gives a complex with phosphorus and sulfur bonded to the metal in a five-membered chelate ring, [Ph2P(S)CH2PR1R2]M(CO)4; heating causes the sulfur to transfer to the more basic phosphorus atom, producing Ph2PCH2P(S)R1R2. Extensive phosphorus and proton NMR data are given.
