20472-49-5

Basic information

• Product Name: ethyl diphenylphosphinothioite
• Synonyms: Ethyl diphenylphosphinothioite; phosphinothious acid, P,P-diphenyl-, ethyl ester
• CAS NO: 20472-49-5
• Molecular Formula: C₁₄H₁₅PS
• Molecular Weight: 246.3077
• Mol File: 20472-49-5.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 356.862°C at 760 mmHg
• Flash Point: 169.624°C
• Vapor Pressure: 0mmHg at 25°C
• CAS DataBase Reference: ethyl diphenylphosphinothioite(CAS DataBase Reference)
• NIST Chemistry Reference: ethyl diphenylphosphinothioite(20472-49-5)
• EPA Substance Registry System: ethyl diphenylphosphinothioite(20472-49-5)

Safety Data

• Hazardous Substances Data: 20472-49-5(Hazardous Substances Data)

Upstream product

• 15288-70-7 Diphenyldithiophosphinsaere-methylesters 
• 57644-86-7 Diphenyl-dithiophosphinsaere-phenylester 
• 104892-86-6 α-ethylthio-β,β,β-trichloroethyl diphenylphosphonite 
• 5573-62-6 (ethylthio)trimethylsilane 
• 1079-66-9 chloro-diphenylphosphine 
• 811-51-8 sodium thioethylate 
• 60-29-7 diethyl ether 

Downstream Products

• 20684-82-6 (diphenylphosphinoyl)(phenyl)methanol 
• 1079-66-9 chloro-diphenylphosphine 
• 1530-32-1 ethyltriphenylphosphonium bromide 
• 2751-90-8 tetraphenylphosphonium bromide 
• 3878-45-3 triphenylphosphine sulfide 
• 158309-75-2 (C₅H₅)(CO)Mn(NO)[P(C₆H₅)2(SC₂H₅)]⁽¹⁺⁾*PF₆^(1-) = (C₅H₅)(CO)Mn(NO)[P(C₆H₅)2(SC₂H₅)](PF₆) 
• 829-85-6 diphenylphosphane 
• 6591-07-7 diphenylphosphane sulfide 
• 64436-24-4 <α-(α-chlorobenzyloxy)benzyl>diphenylphosphine oxide 
• 97695-54-0 phenylazo(diphenylphosphinylethoxycarbonyl)methane 
• 1054-59-7 1,1,2,2-tetraphenyldiphosphane-1,2-dioxide 
• 54572-98-4 (α-hydroxybenzyl)diphenylphosphine sulfide 
• 33329-02-1 ethyl diphenylphosphinodithioate 

Relevant articles and documents

THERMAL DECOMPOSITION OF PHOSPHORYLATED HEMIMERCAPTALS

-

PHOSPHORORGANISCHE VERBINDUNGEN 90 Methodische Ausgestaltung der P-C und P-S-Cyanolyse am Beispiel einiger Heterophosphoniumsalze

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.