4712-55-4Relevant articles and documents
Sulfur phosphate compound, non-aqueous lithium ion battery electrolyte containing sulfur phosphate compound and lithium ion battery
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Paragraph 0090-0092; 0098; 0102; 0113-0114, (2020/12/14)
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.
Phosphate compound and synthetic method thereof, and non-aqueous electrolyte
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Paragraph 0009; 0053, (2020/12/31)
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.
METHOD FOR PRODUCING ORGANOPHOSPHORUS COMPOUND
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Paragraph 0087; 0094, (2020/05/02)
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
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
Li, Chunya,Wang, Qi,Zhang, Jian-Qiu,Ye, Jingjing,Xie, Ju,Xu, Qing,Han, Li-Biao
supporting information, p. 2916 - 2922 (2019/06/18)
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.
Catalytic Phosphite Hydrolysis under Neutral Reaction Conditions
Oberhauser, Werner,Manca, Gabriele
supporting information, p. 4824 - 4827 (2018/05/17)
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.
Organophosphorus chemistry without PCl3: A bridge from hypophosphorous acid to H-phosphonate diesters
Fisher, Henry C.,Prost, Lucie,Montchamp, Jean-Luc
, p. 7973 - 7978 (2014/01/06)
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
Method for the esterification of P-O components
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Paragraph 0038; 0039; 0043, (2013/04/25)
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.
An efficient synthesis of O,O- di propyl (E)-2-[1-methyl 2-oxopropylidene]phosphorohydrazidothiolate (E) oxime and its analogues: A potential marine toxin
Gupta, Arvind K.,Dubey,Parashar,Kaushik
scheme or table, p. 1892 - 1910 (2009/08/07)
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.
Method and compositions for identifying anti-HIV therapeutic compounds
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, (2008/06/13)
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.
Method and compositions for identifying anti-HIV therapeutic compounds
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, (2008/06/13)
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.
