1077-05-0

Usage

InChI:InChI=1/C8H9O3P/c1-2-4-8(5-3-1)11-12-9-6-7-10-12/h1-5H,6-7H2

Upstream product

• 101-02-0 triphenyl phosphite 
• 107-21-1 ethylene glycol 
• 3426-89-9 phenyl phosphorodichloridite 
• 7114-39-8 [1,3,2]dioxaphospholan-2-yl-dimethyl-amine 
• 108-95-2 phenol 
• 822-39-9 2-chloro-1,3,2-dioxaphospholan 

Downstream Products

• 98766-84-8 N-<(2-Chlor-ethyl)-phenyl-phosphono>-benzimidsaeure-methylester 
• 16492-16-3 2-phenoxy-[1,3,2]dioxaphospholane 2-oxide 
• 32987-32-9 3-methyl-1-(2-phenoxy-ethoxy)-2,5-dihydro-1H-phosphole 1-oxide 
• 34825-38-2 Hg(Co(CO)2(P(O(C₆H₅))(OCH₂)2)2)2 
• 37788-47-9 phosphonic acid-(2-chloro-ethyl ester)-phenyl ester 
• 617-94-7 1-methyl-1-phenylethyl alcohol 
• 46338-51-6 Phosphorsaeure-(2-hydroxy-ethyl)-phenylester 
• 93701-59-8 C₁₇H₂₁O₆P 
• 98-86-2 acetophenone 
• 3741-36-4 methoxy-2 dioxaphospholane-1,3,2 
• 67583-31-7 5,7-Diphenoxy-6,12-diphenyl-1,4,8,11-tetraoxa-6,12-diaza-5λ⁵,7λ⁵-diphospha-dispiro[4.1.4.1]dodecane 
• 17445-97-5 5-Phenoxy-2,3-(o,o'-biphenylen)-1,4,6,9-tetraoxa-5-phospha-spiro<4.4>non-2-en 
• 17445-98-6 5-Phenoxy-2,3-diphenyl-1,4,6,9-tetraoxa-5-phospha-spiro<4.4>-Δ²-nonen 
• 32987-31-8 1-(2-phenoxy-ethoxy)-2,5-dihydro-1H-phosphole 1-oxide 

Relevant academic research and scientific papers

Electrolyte flame retardant additive and preparation method and application thereof

The invention discloses an electrolyte flame retardant additive, a preparation method of the flame retardant additive and application of the flame retardant additive in a battery electrolyte. The electrolyte flame retardant prepared in the invention is a five-membered cyclic phosphite compound, can be used as an additive in a secondary electrolyte to improve the thermal stability of the electrolyte, while a cyclic structure can form an SEI film on the surface of a negative electrode material, so that the additive can obviously improve the high and low temperature, circulation, storage and other properties of a secondary battery, and the prepared secondary battery not only can be effectively improved in safety, but also can be improved in comprehensive properties. The preparation method ofthe flame retardant additive has the advantages of low raw material cost, simple preparation process steps, safe operation, high product purity and little environmental pollution.

Syntheses und NMR-Spektren phosphororganischer Antioxidantien und verwandter Verbindungen

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.

DISPLACEMENT RATE OF ARYLOXY SUBSTITUENTS IN CYCLIC AND ACYCLIC TRIPHOSPHITES BY METHOXIDE IONS, AND WATER

The displacement rate of aryloxy substituents by methoxide ions in the following triphosphites: 2-phenoxy-1,3,2-dioxaphospholane (I), 2-methoxy-benz-1,3,2-dioxaphospholene (II), and dimethyl phenylphosphite (III), is for each phosphite higher in methanol than in dichloromethane.On the other hand, dichloromethane discriminates much more strongly between five-membered cyclic and acyclic phosphites than methanol, as shown by the following rate ratios cyclic/acyclic in CH3OH: I/III = 13, II/III = 2; and in CH2Cl2: I/III = 1.8 x 103, II/III = 1.1 x 103. Water, as nucleophile towards the same phosphites in deuteroacetone, appears to exhibit somewhat similar magnitude of discrimination as methoxide in methanol. Key Words: Cyclic and acyclic triphosphites; displacement rate of aryloxy substituents.

MECHANISM OF NUCLEOPHILIC SUBSTITUTION AT TRICOVALENT PHOSPHORUS

The mechanism of substitution reactions at tricovalent phosphorus, mainly the system + ROH, is discussed on the basis of stereochemistry, catalysis, kinetics and substituent effects.