115-86-6Relevant academic research and scientific papers
Stereospecific Deoxygenation of Aliphatic Epoxides to Alkenes under Rhenium Catalysis
Nakagiri, Takuya,Murai, Masahito,Takai, Kazuhiko
, p. 3346 - 3349 (2015)
The combination of a catalytic amount of Re2O7 and triphenyl phosphite as a reductant is effective for the deoxygenation of unactivated aliphatic epoxides to alkenes. The reaction proceeds stereospecifically with variously substituted epoxides under neutral conditions and is compatible with various functional groups. Protection and deprotection of a double bond functionality using an epoxide are shown as an example of the current rhenium-catalyzed deoxygenation protocol. The effect of reductants for the stereoselectivity has also been studied, indicating that the use of electron-deficient phosphines or phosphites is the key for the stereospecific deoxygenation. (Chemical Equation Presented).
CHEMILUMINESCENCE UPON DECOMPOSITION OF THE OZONIDE OF TRIPHENYLPHOSPHITE
Shereshovets, V. V.,Ostakhov, S. S.,Korotaeva, N. M.,Sharipov, G.L.,Kazakov, V. P.,et al.
, p. 2460 - 2462 (1989)
We have studied the spectral composition of luminescence and the kinetics of attenuation of chemiluminescence upon thermal decomposition of the ozonide of triphenylphosphite.We have established that the emitter of chemiluminescence in the IR region is singlet oxygen, and the emitter of chemiluminescence in the visible region is triphenylphosphate.
PROPERTIES OF TRIPHENYLPHOSPHITE-MODIFIED RHODIUM CARBONYL CATALYSTS FOR THE HYDROFORMYLATION OF 2-BUTENES
Slivinskii, E. V.,Markova, N. A.,Teleshev, A. T.,Korneeva, G. A.,Butkova, O. L.,et al.
, p. 2457 - 2461 (1990)
The factor responsible for the deactivation of a carbonyl triphenylphosphite rhodium hydroformylation catalyst appears to be the formation of a chelate-structure complex with diphenylphosphite, which is the product of partial hydrolysis of the organophosphorus ligand.The deactivating effect of diphenylphosphite can be supressed upon interaction of the H(O)P(OPh)2 and P(OPh)3-modified complex with 2-butenes under hydroformylation reaction conditions.
Aerobic Oxidation of Phosphite Esters to Phosphate Esters by Using an Ionic-Liquid-Supported Organotelluride Reusable Catalyst
Mihoya, Aya,Shibuya, Yuga,Ito, Akane,Toyoda, Anna,Oba, Makoto,Koguchi, Shinichi
, p. 2043 - 2045 (2020)
We describe the synthesis of an ionic-liquid (IL)-supported organotelluride catalyst and its application as a recyclable catalyst for the aerobic oxidation of phosphite esters to phosphate esters. This method shows high conversion rates, allows the ready isolation and purification of the resulting products, and exhibits good reusability of the catalyst.
VOLTAMMETRIC STUDY OF REACTIONS OF TRIPHENYLPHOSPHITE OZONIDE
Rusakov, I. A.,Shereshovets, V. V.,Abramova, N. A.,Maistrenko, V. N.,Murinov, Yu. I.
, p. 65 - 67 (1992)
The electrochemical characteristics of reduction of triphenylphosphite ozonide at a stationary platinum electrode were determined in acetonitrile at between -30 and -11 deg C.The feasibility of employing voltammetric methods to investigate the reactions of phosphite ozonides was demonstrated in a model study of the kinetics of the thermal decomposition of (C6H5O)3PO3 and its reaction with triphenylphosphite. Keywords: kinetics, decomposition, ozonide, triphenylphosphite, ozonation, voltammetry.
Tellurium tetrachloride as an efficient chlorinating agent for di- or trialkyl phosphites: Novel synthesis of dialkyl chlorophosphates
Koh,Oh
, p. 1771 - 1774 (1993)
Various dialkyl chlorophosphates are prepared by the reaction of TeCl4 with di- or trialkyl phosphites in good yields.
Iodosobenzene and iodoxybenzene as reagents for oxygen transfer in organophosphorus chemistry
Mielniczak,Lopusiński
, p. 505 - 508 (2001)
The application of iodosobenzene (1) and iodoxybenzene (2) for the oxidation reaction of phosphorous, phosphorothiono and phosphoroseleno compounds into the corresponding ≡P(O) analogs is demonstrated. Retention of configuration at the phosphorus atom and full stereoselectivity of these reactions in model diastereoisomeric cis- and trans-2-phenylamino-2-thiono-4-methyl-1.3.2-dioxaphosphorinans (30) as well cis- and trans-2-phenylamino-2-seleno-4-methyl-1.3.2-dioxaphosphorinans (31) systems, are demonstrated.
A Reexamination of the Ozone-Triphenyl Phosphite System. The Origin of Triphenyl Phosphate at Low Temperatures
David Mendenhall,Priddy, Duane B.
, p. 5783 - 5786 (1999)
The reaction of ozone with triphenyl phosphite (P) at -78°C affords a labile 1:1 complex (PO3) together with small amounts of triphenyl phosphate (PO) (Q. E. Thompson, J. Am. Chem. Soc. 1961, 83, 845). In this work we found that the amount of PO present initially after complete ozonation of P in toluene was 12 ± 2% at -78°C and 11 ± 2% at -95°C. Partial ozonation of solutions of P in toluene at -78°C gave mixtures of P, PO, and PO3 whose composition changed with time as a result of the reaction of P with PO3 to give additional PO. Between -25 and -60 °C, the rate constant of the latter reaction is given by the expression log k (M-1 s-1) = (8.64 ± 0.04) - (11.44 ± 0.74) kcal/AT. This reaction at -78°C is too slow to account for the PO formed during the ozonation, which is proposed to arise instead by competitive reactions of an intermediate. The solubility of PO in toluene at -78°C was measured as 0.06 M, and that of PO3 about 6 times greater.
Preparation of Flame-Resistant Liquids Based on Mixed Tri(phenyl, p-tert-butylphenyl) Phosphates by Transesterification of Triphenyl Phosphate with p-tert-Butylphenol
Karchevskaya, O. G.,Korneeva, G. A.,Kron, T. E.,Noskov, Yu. G.
, p. 1237 - 1243 (2020)
Abstract: The possibility of controlling the composition of a mixture of triphenyl phosphate, p-tert-butylphenyl diphenyl phosphate, di(p-tert-butylphenyl)phenyl phosphate, and tri(p-tert-butylphenyl) phosphate, formed by transesterification of triphenyl phosphate with p-tert-butylphenol, was demonstrated. The amount of p-tert-butylphenol necessary for transesterification of triphenyl phosphate to yield a mixture of phosphates of required composition was determined. If necessary, the composition of the phosphates can be adjusted by selective distillation of triphenyl phosphate in a vacuum.
Zero-Valent Amino-Olefin Cobalt Complexes as Catalysts for Oxygen Atom Transfer Reactions from Nitrous Oxide
Gianetti, Thomas L.,Rodríguez-Lugo, Rafael E.,Harmer, Jeffrey R.,Trincado, Monica,Vogt, Matthias,Santiso-Quinones, Gustavo,Grützmacher, Hansj?rg
, p. 15323 - 15328 (2016)
The synthesis and characterization of several zero-valent cobalt complexes with a bis(olefin)-amino ligand is presented. Some of these complexes proved to be efficient catalysts for the selective oxidation of secondary and allylic phosphanes, as well as diphosphanes, even with a direct P?P bond. With 5 mol % catalyst loadings the oxidations proceed under mild conditions (25–70 °C, 7–22 h, 2 bar N2O) and afford good to excellent yields (65–98 %). In this process, the greenhouse gas N2O is catalytically converted into benign N2and added-value organophosphorus compounds, some of which are difficult to obtain otherwise.
