1485-82-1

Basic information

• Product Name: Phosphine, methylbis(2-methylphenyl)-
• CAS NO: 1485-82-1
• Molecular Formula: C15H17P
• Molecular Weight: 228.274
• Mol File: 1485-82-1.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Phosphine, methylbis(2-methylphenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine, methylbis(2-methylphenyl)-(1485-82-1)
• EPA Substance Registry System: Phosphine, methylbis(2-methylphenyl)-(1485-82-1)

Safety Data

• Hazardous Substances Data: 1485-82-1(Hazardous Substances Data)

Usage

General Description

Phosphine, methylbis(2-methylphenyl)- is a chemical compound with the molecular formula C14H17P. It is a colorless, liquid organic phosphine that is used as a ligand in coordination chemistry. It is also a highly toxic and flammable substance, and exposure to it can cause irritation to the skin, eyes, and respiratory system. It is commonly used in the production of pharmaceuticals and pesticides, as well as in various organic synthesis reactions. Proper handling and storage of this chemical are essential to prevent accidents and ensure the safety of workers and the environment.

Upstream product

• 932-31-0 ortho-tolylmagnesium bromide 
• 676-83-5 methyldichlorophosphane 
• 36042-94-1 bis(o-tolyl)chlorophosphine 
• 917-54-4 methyllithium 
• 1589-82-8 phenylmagnesium bromide 

Downstream Products

• 66568-24-9 methyl-di-o-tolyl-phosphine oxide 
• 918962-36-4 (CH₃C₆H₄)2(CH₃)PCr(CO)5 
• 76136-76-0 PtCl₂(P(C₆H₁₁)3)(P(CH₃)(C₆H₄(CH₃))2) 

Relevant articles and documents

Crystal structure of cis-[Ru(bpy)2{PMe(o-tol)2}Cl+][ClO-4]: Steric effects in some PMen(o-tol)3-n (n = 1-3) derivatives of ruthenium(II)

The complex cis-[Ru(bpy)2{PMe(o-tol)2}Cl+][ClO-4] crystallizes in space group P21/c with a = 9.375(2) A, b = 22.019(7) A, c = 16.153(4) A, β= 90.83(2)°, V = 3333.9(16) A3 and D(calc'd) = 1.547 g/cm3 for Z = 4. The Ru-PMe(o-tol)2 bond length of 2.357(3) A is significantly longer than distances of Ru-PMe2(o-tol) = 2.324(2) A and Ru-PMe3 = 2.310(2) A in analogous complexes. The corresponding Ru-P(o-tol)3 complex has eluded synthesis, probably due to steric hindrance.

Thermal Stability of Phosphinoacetic Acids

Phosphinoacetic acids decarboxylate smoothly in toluene solution at 99 deg C and the corresponding alkylphosphine is formed in quantitative yields.Electron-withdrawing substituents at the α position of the carboxylic acid lead to a large increase in the reaction rate.In contrast, electron-withdrawing substituents at the phosphorus atom lead to a small decrease in the rate.We have concluded from the substituent effects, solvent effects, and the influence of bases and acids that both the lone pair of the phosphorus atom and the carboxylate hydrogen atom play a crucial role in the reaction.A mechanism is proposed that proceeds via an ylide.Sodium phosphinocarboxylates do not decarboxylate in an aqueous solution at 95 deg C.Instead a carbon-phosphorus bond cleavage occurs probably by an intramolecular nucleophilic substitution.