6079-78-3

Basic information

• Product Name: 1,1,3,3-tetraphenyldiphosphathiane 1,3-disulfide
• Synonyms: 1,1,3,3-Tetraphenyldiphosphathiane 1,3-disulfide; Phosphorane, 1,1'-thiobis[1,1-diphenyl-, disulfide
• CAS NO: 6079-78-3
• Molecular Formula: C₂₄H₂₀P₂S₃
• Molecular Weight: 466.5581
• Mol File: 6079-78-3.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 598.3°C at 760 mmHg
• Flash Point: 315.6°C
• Density: 1.33g/cm³
• Vapor Pressure: 1.21E-13mmHg at 25°C
• Refractive Index: 1.705
• CAS DataBase Reference: 1,1,3,3-tetraphenyldiphosphathiane 1,3-disulfide(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,3,3-tetraphenyldiphosphathiane 1,3-disulfide(6079-78-3)
• EPA Substance Registry System: 1,1,3,3-tetraphenyldiphosphathiane 1,3-disulfide(6079-78-3)

Safety Data

• Hazardous Substances Data: 6079-78-3(Hazardous Substances Data)

Usage

General Description

1,1,3,3-tetraphenyldiphosphathiane 1,3-disulfide, also known as DPTPDS, is an organophosphorus compound that contains two phosphorus atoms, one sulfur atom, and four phenyl groups. It is used as a flame retardant and a cross-linking agent in the production of polymeric materials such as plastics, rubber, and textiles. Its unique structure and properties enable it to effectively suppress the spread of fire and improve the thermal and mechanical properties of these materials. However, potential health hazards are associated with the exposure to DPTPDS, as it is toxic to aquatic organisms and may cause irritation to the skin and respiratory system in humans. Therefore, proper safety measures should be taken when handling and using this chemical.

Upstream product

• 829-85-6 diphenylphosphane 
• 1079-66-9 chloro-diphenylphosphine 
• 26978-37-0 tetraphenyldiphosphane monosulfide 
• 1054-60-0 tetraphenyldiphosphine disulfide 
• 1015-38-9 diphenylphosphinodithioic acid 
• 55681-99-7 tri-tert-butyl gallium 
• 14149-40-7 [¹³C₂,¹⁵N]-acetonitrile 
• 7403-46-5 2-chloro-1-methylpyridinium p-toluenesulfonate 
• 38194-90-0 piperidinium diphenylphosphinodithioate 

Downstream Products

• 3096-09-1 diphenylphosphinothioic O-acid anhydride 

Relevant articles and documents

Gallium and indium compounds of sulphur donor ligands: Pyridine-2-thiolates and diphenylthiophosphinates

The reaction of GaR3 (R = tBu, Me) with 1, 2, or 3 molar equivalents of 2-mercaptopyridine (HSpy) yielded Ga(R)2(Spy) [R = tBu (1), Me(2)], Ga(R)(Spy)2 [R = tBu (3), Me (4)], and Ga(Spy)3 (5), respectively. Reaction of GaCl3 and HSpy in the presence of NEt3 does yield Ga(Spy)3 if excess HSpy is employed, otherwise Ga(Cl)(Spy)2 (NEt3) (6) may be isolated. The indium compound, In(Spy)3 (7), may be prepared both in an analogous manner to that for compound 5, but also from the reaction of HSpy with either InCl or InCl3 in the presence of NEt3. In all the compounds, except compound 3, the 2-mercaptopyridine acts exclusively as a chelating ligand. Reaction of Ga(tBu)3 with Ph2P(S)(SH) yields [Ph2P(S)S]2 but only traces of the expected product [(tBu)2Ga(μ-S2PPh2)] 2(8). In contrast, reaction of Ga(tBu)3 with HO(S)PPh2 (E = S, O) yields the dimeric compounds [(tBu)2Ga(μ-O(E)PPh2)]2, E = S (9), O (10). Compound 9 exists as a mixture of head-to-head (9a, syn) and head-to-tail (9b, anti) isomers due to the asymmetry of the bridging ligand. Reaction of GaCl3 with three molar equivalents of Na(S2PR2) ? 2(H2O), R = Me, Et, yields the tris-dithiophosphinate compounds, Ga(S2PR2) 3, R = Me (11), Et (12). All new compounds have been characterized by NMR and IR spectroscopy and mass spectrometry. In addition, the molecular structures of compounds 4 and 10 have been determined by X-ray crystallography.

M + 4 stable isotope labeling of levovirin and M + 7 and carbon-14 labeling of levovirin valinate pro-drug

[M + 4]-labeled levovirin 5 (231 mg) was synthesized as an MS reference compound from [M + 4] triazole ester 2. [M + 7]-labeled levovirin valinate 6 (127 mg) was synthesized as a comparison MS reference compound from [M + 6] triazole ester 3. [14/su

REACTIONS OF DIALKYL DITHIOPHOSPHORIC AND DIPHENYLDITHIOPHOSPHORIC ACIDS WITH THIOCYANATES

The interaction between phosphorus(IV) dithio acid partial esters and thiocyanates proceeds with initial formation of addition products to the CN bond.These adducts are either split by the second molecule of dithio acid to S-alkyl dithiocarbamates and tetraalkyl trithiophosphates or rearrange into dialkyl N-thiophosphoryldithiocarbamates.The latter easily split off the thiols and convert to isothiocyanatothiophosphates.A number of thiophosphorylated and diphosphorylated thioureas were synthesized by the reaction of isothiocyanatothiophosphates with amines and α-aminoalkylphosphonates.