- Sulfur phosphate compound, non-aqueous lithium ion battery electrolyte containing sulfur phosphate compound and lithium ion battery
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The invention discloses a thiophosphate compound, a synthesis method and a non-aqueous electrolyte. After the compound is applied to a battery with the non-aqueous electrolyte, even if the battery isunder high voltage, an electrode/electrolyte interface of a lithium ion battery is effectively improved, so that an electrode surface film is stabilized, side reactions are reduced, the stability of the battery under high temperature and high voltage is improved, and the cycling stability of the battery is improved, and meanwhile, the self-extinguishing time of the non-aqueous electrolyte after combustion is shortened, the flame retardance is improved, and the safety performance of the battery is improved.
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Paragraph 0090-0092; 0098; 0102; 0113-0114
(2020/12/14)
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- Phosphate compound and synthetic method thereof, and non-aqueous electrolyte
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The invention relates to a phosphate compound, a method for synthesizing the phosphate compound, and a non-aqueous electrolyte; the main means for suppressing side reactions on the surface of an electrode comprises coating an electrode active material and adding an effective film-forming additive to an electrolyte to form a passivation film having sufficient thickness and density on the surface ofthe electrode; the two means are undoubtedly used for preventing the electrolyte from contacting the surface of the electrode to obtain and lose electrons and preventing the surface of the electrodefrom being corroded by decomposition byproducts of the electrolyte. The phosphate compound disclosed by the invention has the beneficial effects that the phosphate compound is easy to prepare and purify, high in thermal stability, convenient to store, strong in compatibility with other components of an electrolyte and other components in a battery, moderate in viscosity, high in dielectric constant, capable of dissolving a lithium salt, has certain wetting capacity, and has flame-retardant and positive and negative electrode surface film-forming functions.
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Paragraph 0009; 0053
(2020/12/31)
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- METHOD FOR PRODUCING ORGANOPHOSPHORUS COMPOUND
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PROBLEM TO BE SOLVED: To provide a method for producing an organophosphorus compound which has excellent energy efficiency without containing a halogenated alkyl or a by-product derived from a halogenated alkyl. SOLUTION: There is provided a method for producing an organophosphorus compound by reacting a trivalent organophosphorus compound represented by the following general formula (1) in the presence of a super strong acid and/or at least one acid catalyst containing a solid superstrong acid catalyst to generate a pentavalent organophosphorus compound represented by the following general formula. (where Z1 represents OR2 or R2; Z2 represents OR3 or R3; R1, R2 and R3 represent an alkyl group, an alkenyl group or the like; when R2 and R3 are an alkyl group or the like, R2 and R3 may be bonded to each other to form a cyclic structure; and R1 may be a hydrogen atom.) SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
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Paragraph 0087; 0094
(2020/05/02)
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- Water determines the products: An unexpected Br?nsted acid-catalyzed PO-R cleavage of P(iii) esters selectively producing P(O)-H and P(O)-R compounds
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Water is found able to determine the selectivity of Br?nsted acid-catalyzed C-O cleavage reactions of trialkyl phosphites: with water, the reaction quickly takes place at room temperature to afford quantitative yields of H-phosphonates; without water, the reaction selectively affords alkylphosphonates in high yields, providing a novel halide-free alternative to the famous Michaelis-Arbuzov reaction. This method is general as it can be readily extended to phosphonites and phosphinites and a large scale reaction with much lower loading of the catalyst, enabling a simple, efficient, and practical preparation of the corresponding organophosphorus compounds. Experimental findings in control reactions and substrate extension as well as preliminary theoretical calculation of the possible transition states all suggest that the monomolecular mechanism is preferred.
- Li, Chunya,Wang, Qi,Zhang, Jian-Qiu,Ye, Jingjing,Xie, Ju,Xu, Qing,Han, Li-Biao
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supporting information
p. 2916 - 2922
(2019/06/18)
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- Catalytic Phosphite Hydrolysis under Neutral Reaction Conditions
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Cationic phosphametallocene-based platinum(II) aqua complexes were used as efficient precatalysts for the hydrolysis of aromatic and aliphatic tertiary phosphites under neutral reaction conditions at room temperature, leading to the selective cleavage of one P-O bond of the phosphite. NMR labeling experiments combined with stoichiometric model reactions and theoretical density functional theory calculations, performed with the appropriate model compounds, shed light on the operative catalytic cycle, which comprises intramolecular water molecule transfer to the cis-coordinated phosphite molecule.
- Oberhauser, Werner,Manca, Gabriele
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supporting information
p. 4824 - 4827
(2018/05/17)
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- Method for the esterification of P-O components
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The present invention is directed to a new method for esterification of P-O components. More specifically, the present invention relates to a new method for esterification of P-O components containing at least one P-O-H functional group, whereby the P-O-H functional group(s) is converted into P-O-R functional group(s). The method according to the invention may find particular use in the manufacture of diesters of phosphorous acid.
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Paragraph 0038; 0039; 0043
(2013/04/25)
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- Organophosphorus chemistry without PCl3: A bridge from hypophosphorous acid to H-phosphonate diesters
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A process for the conversion of hypophosphorous acid (H3PO 2, HPA) and alcohols into various H-phosphonate diesters [(RO) 2P(O)H] is described. The new reaction provides a missing bridge between HPA and important H-phosphonates, completely avoiding the use of PCl3. Nickel chloride or nickel on silica catalyze the oxidative phosphorylation of alkyl phosphinates with various alcohols or water. The reaction is atom economic and avoids the formation of waste products. The previous need for both chlorine and base is completely avoided. Esterification of hypophosphorous acid followed by reaction with another molecule of alcohol under the action of a nickel catalyst provides a green method for the preparation of H-phosphonates. This method entirely avoids the need for any stoichiometric chloride unlike those based on phosphorus trichloride. Copyright
- Fisher, Henry C.,Prost, Lucie,Montchamp, Jean-Luc
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p. 7973 - 7978
(2014/01/06)
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- An efficient synthesis of O,O- di propyl (E)-2-[1-methyl 2-oxopropylidene]phosphorohydrazidothiolate (E) oxime and its analogues: A potential marine toxin
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An efficient method for the synthesis of Ptychodiscus brevis toxin O,O- di n-propyl (E)-2-[1-methyl 2-oxopropylidene]phosphorohydrazidothiolate (E) oxime (TG-1) and its analogues has been developed using thermally stable and recyclable silica gel and Na2SO4 as a condensing agent and water scavenger, respectively. The compounds were evaluated against fish Rasbora daniconius by determining the LC50 and LC90 values. The results of biological evaluation showed that these compounds have high degree of toxicity. Copyright Taylor & Francis Group, LLC.
- Gupta, Arvind K.,Dubey,Parashar,Kaushik
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scheme or table
p. 1892 - 1910
(2009/08/07)
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- Method and compositions for identifying anti-HIV therapeutic compounds
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Methods are provided for identifying anti-HIV therapeutic compounds substituted with carboxyl ester or phosphonate ester groups. Libraries of such compounds are screened optionally using the novel enzyme GS-7340 Ester Hydrolase. Compositions and methods relating to GS-7340 Ester Hydrolase also are provided.
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- Method and compositions for identifying anti-HIV therapeutic compounds
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Methods are provided for identifying anti-HIV therapeutic compounds substituted with carboxyl ester or phosphonate ester groups. Libraries of such compounds are screened optionally using the novel enzyme GS-7340 Ester Hydrolase. Compositions and methods relating to GS-7340 Ester Hydrolase also are provided.
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- Studies on aryl H-phosphonates. 3. Mechanistic investigations related to the disproportionation of diphenyl H-phosphonate under anhydrous basic conditions
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Diphenyl H-phosphonate undergoes under anhydrous reaction conditions a base-promoted disproportionation to triphenyl phosphite and phenyl H- phosphonate. On the basis of 31P NMR data the most likely mechanism for this transformation was proposed. In order to substantiate these findings and to get a deeper insight into the chemistry of aryl H-phosphonate esters, we carried out also some studies on activation of phenyl and diphenyl H- phosphonates with various condensing agents. We found that aryl vs alkyl esters of phosphonic acid often follow different reaction pathways during the activation, and this can most likely be traced back to higher electrophilicity of the phosphorus centre and to higher reactivity of the P- H bonds in aryl H-phosphonate derivatives.
- Kers, Annika,Kers, Inger,Stawinski, Jacek,Sobkowski, Michal,Kraszewski, Adam
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p. 9931 - 9944
(2007/10/03)
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- ELECTROCHEMICALLY INDUCED PROCESSES OF FORMATION OF PHOSPHORUS ACID DERIVATIVES. 4. SYNTHESIS OF TRIALKYL PHOSPHATES FROM WHITE PHOSPHORUS
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The products of electrolysis in dipolar aprotic solvents on the background of tetraethylammonium iodide in the presence of white phosphorus are trialkyl phosphite (the primary product after splitting of all the P - P bonds in the phosphoric oligomers) and triaryl phosphate.It was found that the formation of triaryl phosphate from white phosphorus proceeds by way of electrochemical reduction of pentaaroxyphosphorane - an intermediate product of the reaction of triaryl phosphite with iodine and phenol.A strong dependence of the yields and distribution of the products on the composition of the electrolyte has been observed. Keywords: white phosphorus, electrosynthesis, triaryl phosphate.
- Budnikova, Yu. G.,Kargin, Yu. M.,Zaripov, I. M.,Romakhin, A. S.,Ignat'ev, Yu. A.,et al.
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p. 1585 - 1588
(2007/10/02)
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- Syntheses und NMR-Spektren phosphororganischer Antioxidantien und verwandter Verbindungen
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The syntheses of various aliphatic, aromatic, sterically hindered, and cyclic organophosphorus compounds (phosphorous acid esters, esters chlorides and ester amides, hydrogen phosphites, phosphinates and phosphates) are reported, and general procedures for preparation are given.The compounds synthesized were investigated by means of 31P-, 1H- and 13C-n.m.r. spectroscopy, and the chemical shifts measured are listed.
- Koenig, T.,Habicher, W.D.,Haehner, U.,Pionteck, J.,Rueger, C.,Schwetlick, K.
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p. 333 - 349
(2007/10/02)
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- MICELLAR EFFECTS UPON ACID CATALYZED HYDROLYSIS OF TRIPHENYLPHOSPHITE
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Acid hydrolysis of triphenylphosphite (1) are effectively catalyzed by anionic micelles of sodium lauryl sulfate (NaLS), alkylhydrogensulfate (2), tetradecansulfonic acid (3a) and p-decyloxybenzenesulfonic acid (3b).Cationic micelles of cetyltrimethylammonium chloride (CTACl) inhibit the reaction.Rate effects were analyzed quantitatively in terms of distribution of reactants between water and the micelles; and the effect of added HCl or salt can be explained quantitatively in these terms. Key words: Hydrolysis of triphenylphosphite; acid catalysis; micellar effects.
- Al-Lohedan, Hamad A.
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p. 261 - 271
(2007/10/02)
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- PROPERTIES OF TRIPHENYLPHOSPHITE-MODIFIED RHODIUM CARBONYL CATALYSTS FOR THE HYDROFORMYLATION OF 2-BUTENES
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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.
- Slivinskii, E. V.,Markova, N. A.,Teleshev, A. T.,Korneeva, G. A.,Butkova, O. L.,et al.
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p. 2457 - 2461
(2007/10/02)
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- MECHANISMUS DER REAKTION VON TRIARYLPHOSPHITEN MIT PHOSPHORSAEUREN
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Arylation of diethyl phosphoric acid by triphenylphosphite leading to diethylphenylphosphate was studied by NMR-spectroscopy.The mixed PIII-PIV-anhydride was proved to be an intermediate.The scope of arylation is presented.
- Markowska, A.,Olejnik, J.,Mlotkowska, B.,Sobanska, M.
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p. 143 - 146
(2007/10/02)
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