1706-98-5

Basic information

• Product Name: diethyl(methyl)phosphane sulfide
• CAS NO: 1706-98-5
• Molecular Formula: C₅H₁₃PS
• Molecular Weight: 136.1955
• Mol File: 1706-98-5.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 164.2°C at 760 mmHg
• Flash Point: 53.1°C
• Density: 0.951g/cm³
• Vapor Pressure: 2.6mmHg at 25°C
• Refractive Index: 1.462
• CAS DataBase Reference: diethyl(methyl)phosphane sulfide(CAS DataBase Reference)
• NIST Chemistry Reference: diethyl(methyl)phosphane sulfide(1706-98-5)
• EPA Substance Registry System: diethyl(methyl)phosphane sulfide(1706-98-5)

Safety Data

• Hazardous Substances Data: 1706-98-5(Hazardous Substances Data)

Upstream product

• 5827-24-7 methyl-thiophosphonic acid-dibromide 
• 925-90-6 ethylmagnesium bromide 
• 3981-46-2 diethylphosphinothioyl bromide 
• 75-16-1 methylmagnesium bromide 
• 6588-00-7 ethyl diethylphosphinothioite 
• 74-88-4 methyl iodide 
• 119841-34-8 cis-2,10-dimethyl-<1,2,3>benzothiadiphospholo<2,3-b><1,2,3>benzothiadiphosphole 

Relevant articles and documents

Highly atom-economic one-pot formation of three different C-P bonds: General synthesis of acyclic tertiary phosphine sulfides

The reaction of benzothiadiphosphole 1 with an equimolar mixture of R 1MgBr and R2MgBr gave intermediate A′, which, after only 4-5 min, was treated with an equimolar amount of R3MgBr, giving the asymmetric phosphine PR1R2R3 in 45% overall yield (75-80% yield when R1 = R2 and 85-90% yield when R1 = R2 = R3) and the byproduct 6 in 90% yield. The treatment of 6 with PCl3 quantitatively regenerates the starting reagent 1. Treatment of the phosphines with elemental sulfur gave the corresponding sulfides.