75231-53-7Relevant academic research and scientific papers
Method for preparing S-aryl or alkyl thiophosphonate compound
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Paragraph 0056; 0057; 0058; 0059; 0060, (2017/07/20)
The invention discloses a method for preparing an S-aryl or alkyl thiophosphonate compound. According to the method, sulfonyl chloride and diphenyl phosphine oxide serve as raw materials, and corresponding S-aryl or alkyl thiophosphonate can be produced through coupling in air at a relatively low temperature without alkalifying. According to the method, synthesis procedures are not involved in intractable substances such as accelerants and metal catalysts, the method is easy and feasible, and the conditions are mild. The synthetic product of the method can be applied to numerous fields of medicines, pesticides, organic synthesis and the like and is an organic synthesized intermediate with excellent performance.
Electron Spin Resonance Studies of Thiophosphoranyl Radicals. The Mechanism of Ligand Permutation in Phosphoranyl Radicals
Giles, Jeremy R. M.,Roberts, Brian P.
, p. 1211 - 1220 (2007/10/02)
A series of thiophosphoranyl radicals have been generated in solution by addition of thiyl radicals (RS, from photolysis of RSSR or H2S) to phosphorus(III) compounds and their e.s.r. spectra have been studied.The phosphoranyl radicals have trigo
PHOSPHORORGANISCHE VERBINDUNGEN 90 Methodische Ausgestaltung der P-C und P-S-Cyanolyse am Beispiel einiger Heterophosphoniumsalze
Horner, Leopold,Jordan, Manfred
, p. 215 - 220 (2007/10/02)
Treatment of allylamido-phosphonium salts with dry tetrabutylammonium cyanide in methylenechloride delivers after removal of the allyl group phosphinous acid amides with retention of configuration (P-C-cyanolysis).Allyl-O-alkylphosphonium salts undergo the Arbosov reaction under the above conditions, while allyl-S-alkyl phosphonium salts undergo fission of the P-S bond (P-S cyanolysis).Equally good results were obtained using KCN in methylene chloride accompained by catalytic amounts of 18-crown-6 ether; thus optically active benzyl-methyl-phenyl-phosphine-sulfid gave the corresponding phosphine with retention of configuration.Dithiophosphinic acid esters and thiophosphinic acid amides, after conversion to the corresponding quasiphosphonium salts via S-alkylation and subsequent treatment with tetrabutylammonium cyanide in methylenechloride, also give the corresponding thiophosphinous acid ester and phosphinous acid amide respectively.Thiophosphinic acid O-alkyl esters (R2P(S)OR') give however the thiophosphinic S-alkyl ester (R2P(O)SR') via an Arbusov reaction.The P-C cyanolysis of allyl-triphenylphosphoniumbromide using KCN/18-crown-6 or tetrabutylammonium cyanide in aprotic medium stops at the stage of the intermediary red-coloured ylide; addition of a proton-donor then results in the subsequent rearrangement to the corresponding propenyl-phosphonium salt.
