866-54-6

Basic information

• Product Name: diethylphosphinodithioic acid
• Synonyms: Diethylphosphinodithioic acid; phosphinodithioic acid, P,P-diethyl-
• CAS NO: 866-54-6
• Molecular Formula: C₄H₁₁PS₂
• Molecular Weight: 154.2339
• Mol File: 866-54-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 185.9°C at 760 mmHg
• Flash Point: 66.2°C
• Density: 1.096g/cm³
• Vapor Pressure: 0.935mmHg at 25°C
• Refractive Index: 1.517
• CAS DataBase Reference: diethylphosphinodithioic acid(CAS DataBase Reference)
• NIST Chemistry Reference: diethylphosphinodithioic acid(866-54-6)
• EPA Substance Registry System: diethylphosphinodithioic acid(866-54-6)

Safety Data

• Hazardous Substances Data: 866-54-6(Hazardous Substances Data)

Upstream product

• 627-49-6 Diethylphosphine 
• 3982-89-6 diethylthiophosphoryl chloride 
• 925-90-6 ethylmagnesium bromide 

Downstream Products

• 49873-27-0 Diaethyl(methylthio)phosphinsulfid 
• 813-76-3 diethylphosphinic acid 
• 74-84-0 ethane 
• 7519-60-0 (C₂H₅)2P(S)SSn(C₂H₅)3 
• 24057-20-3 bis-(diethylthiophosphoryl)-disulfane 
• 6079-77-2 bis(diphenylphosphinothioyl)disulfide 
• 55382-96-2 C₁₁H₁₆NOPS₂ 
• 53128-07-7 Diethyl-phosphinodithioic acid 2-(diphenyl-phosphinoyl)-ethyl ester 

Relevant articles and documents

(Salen)Ti(IV) complex catalyzed asymmetric ring-opening of epoxides using dithiophosphorus acid as the nucleophile

A series of chiral bis-Schiff bases were synthesized starting from (1R,2R)-(+)-diaminocyclohexane, (+)-cis-1,2,2-trimethyl-1,3-diaminocyclopentane, (R)-2,2′-diamino-1,1′-binaphthalene, and (1S,2S)-diphenyl-1,2-ethanediamine. The enantioselective ring-opening of meso epoxides with dithiophosphorus acids catalyzed by a (salen)Ti(IV) complex formed in situ upon the treatment of Ti(OPr-i)4 and the aforementioned chiral Schiff base was realized. The resulting products were obtained with low to good enantioselectivities (up to 73% ee). The (salen)Ti(IV) complex containing the backbone of 1,2-diaminocyclohexane exhibited the best enantioselectivity. The substituents in dithiophosphorus acids and those on the salen aromatic ring have a significant influence on the reaction. Moderate enantioselectivity were obtained for the (salen)Ti(IV) complex catalyzed ring-opening of racemic monosubstituted epoxides. High regioselectivity was observed for the alkyl substituted epoxides, whereas poor regioselectivity was obtained for the aryl substituted ones.