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Triphenyl phosphorothionate, also known as triphenyl phosphorothioate or TPPT, is an organophosphorus compound with the chemical formula C18H15O3PS. It is a colorless, crystalline solid that is soluble in organic solvents and has a molecular weight of 346.34 g/mol. TPPT is primarily used as a flame retardant and plasticizer in various materials, including plastics, rubber, and textiles. It functions by releasing phosphorus-containing compounds when exposed to heat, which can interrupt the combustion process and slow down the spread of fire. Due to its potential health and environmental concerns, the use of TPPT has been restricted or banned in some countries.

70562-38-8

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70562-38-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70562-38-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,5,6 and 2 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 70562-38:
(7*7)+(6*0)+(5*5)+(4*6)+(3*2)+(2*3)+(1*8)=118
118 % 10 = 8
So 70562-38-8 is a valid CAS Registry Number.

70562-38-8Relevant academic research and scientific papers

Novel palladium-catalyzed thiophosphorylation of alkynes with phosphorethioate: An efficient route to (Z)-1-(diphenoxyphosphinyl)-2-(phenylthio)alkenes

Han, Li-Biao,Tanaka, Masato

, p. 863 - 864 (1999)

Palladium complexes efficiently catalyze the addition of O,O,S-triphenyl phosphorothioate to terminal alkynes to produce (Z)-1-(diphenoxyphosphinyl)-2-(phenylthio)alkenes in high yields with high regio- and stereoselectivity.

Arylation of Axially Chiral Phosphorothioate Salts by Dinuclear PdI Catalysis

Chen, Xiang-Yu,Pu, Maoping,Cheng, Hong-Gang,Sperger, Theresa,Schoenebeck, Franziska

, p. 11395 - 11399 (2019/07/18)

S-aryl phosphorothioates are privileged motifs in pharmaceuticals, agrochemicals, and catalysts; yet, the challenge of devising a straightforward synthetic route to enantioenriched S-aryl phosphorothioates has remained unsolved to date. We demonstrate herein the first direct C?SP(=O)(OR′)(OR′′) coupling of diverse and chiral phosphorothioate salts with aryl iodides, enabled by an air- and moisture-stable PdI dimer. Our mechanistic and computational data suggest distinct dinuclear PdI catalysis to be operative, which allows for operationally simple couplings with broad scope and full retention of stereochemistry.

Fast and transition metal-free general method for the preparation of chalcogenophosphates

Wang, Junxing,Wang, Xiaolong,Li, Hongjie,Yan, Jie

, p. 75 - 79 (2018/02/14)

In the presence of Cs2CO3 and I2, the coupling reaction of dialkyl phosphites with dichalcogenides (S, Se and Te) proceeds efficiently and completes in several minutes under mild conditions, affording the corresponding cha

N-Chlorosuccinimide-promoted synthesis of thiophosphates from thiols and phosphonates under mild conditions

Liu, Yi-Chen,Lee, Chin-Fa

, p. 357 - 364 (2014/01/06)

A very simple N-chlorosuccinimide-promoted synthesis of thiophosphates through the coupling of thiols and phosphonates is reported. Notably, the reactions were carried out in the absence of a base. Functional groups including fluoro, bromo and trifluoromethyl are all tolerated by the reaction conditions employed. Both aryl and alkyl thiols are coupled smoothly with a broad spectrum of phosphonates to afford the corresponding thiophosphates in good to excellent yields.

Phosphorothioate-mercaptophosphonate rearrangement: Synthesis of new o-mercaptoaryl-and omercaptoheteroaryl phosphonates and their derivatives

Masson, Serge,Saint-Clair, Jean-Francois,Dore, Antonio,Saquet, Monique

, p. 951 - 964 (2007/10/03)

New o-mercaptoaryl and o-mcrcaptohetcroaryl phosphonates and their derivatives were prepared via an ori/io-lithiation of O,O-diisopropyl S-aryl, 5-(2-pyridyl), S-(2-thienyl) and 5-(3-thienyl) phosphorothioates followed by a phosphonyl group S → C migration. Elsevier,.

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