28240-60-0

Basic information

• Product Name: Phosphine, ethylidenebis[diphenyl-
• CAS NO: 28240-60-0
• Molecular Formula: C26H24P2
• Molecular Weight: 398.424
• Mol File: 28240-60-0.mol

Chemical Properties

• CAS DataBase Reference: Phosphine, ethylidenebis[diphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine, ethylidenebis[diphenyl-(28240-60-0)
• EPA Substance Registry System: Phosphine, ethylidenebis[diphenyl-(28240-60-0)

Safety Data

• Hazardous Substances Data: 28240-60-0(Hazardous Substances Data)

Upstream product

• 557-91-5 1,1-Dibromoethane 
• 65567-06-8 lithium diphenylphosphide 
• 71672-56-5 C₂₆H₃₀B₂P₂ 
• 1579951-06-6 C₃₃H₂₉MnO₂P₂ 

Downstream Products

• 104549-25-9 Pd2Br2(μ-1,1'-bis(diphenylphosphino)ethane)2 
• 161622-42-0 Pd2Br2(μ-bis(diphenylphosphino)methane)(μ-1,1'-bis(diphenylphosphino)ethane) 
• 60482-68-0 Pd2Br2(μ-bis(diphenylphosphino)methane)2 
• 136050-31-2 {ReOCl₃(C₂₆H₂₄P₂)} 
• 82328-55-0 [Mo(CO)4(Ph₂PCHMePPh₂)] 
• 519058-75-4 [PdCH₂C(C(CH₃)3)N₂(CH₃)2Br]2(C₆H₅)2PCHCH₃P(C₆H₅)2 
• 79980-45-3 [Rh₂Cl(CO)2(1,1-bis(diphenylphosphino)ethane)2][RhCl₂(CO)2] 
• 89198-83-4 [Mo(CO)4(Ph₂PCMe₂PPh₂)] 
• 144738-82-9 {Fe(CO)3(μ-Ph2PCH(Me)PPh2)} 
• 1206593-20-5 trans-chloro(η5-cyclopentadienyl)(1,1-bis(diphenylphosphanyl)ethane-κP)ruthenium(II) 
• 1206593-20-5 cis-chloro(η5-cyclopentadienyl)(1,1-bis(diphenylphosphanyl)ethane-κP)ruthenium(II) 

Relevant articles and documents

A direct, modular, and efficient construction of the P-C-P structural motif through coupling of manganese carbyne complexes with phosphines

Easily available carbyne complexes of manganese were used as a source of carbyne fragments in an unconventional synthesis of backbone-substituted diphosphinomethanes and cyclic P-ylides upon coupling with secondary or tertiary phosphines, respectively, followed by demetalation under mild conditions. Copyright

Backbone modified small bite-angle diphosphines: Synthesis and molecular structures of [M(CO)4{X2PC(R1R2)PX2}] (M = Mo, W; X = Ph, Cy; R1 = H, Me, Et, Pr, allyl, R2 = Me, allyl)

A range of new small bite-angle diphosphine complexes, [M(CO)4{X2PC(R1R2)PX2}] (M = Mo, W; X = Ph, Cy; R1 = H, Me, Et, Pr, allyl, R2 = Me, allyl), have been prepared via elaboration of the methylene backbones in [M(CO)4(X2PCH2PX2)] as a result of successive deprotonation and alkyl halide addition. When X = Ph it proved possible to replace both methylene protons but for X = Cy only one substitution proved possible. This is likely due to the electron-releasing nature of the cyclohexyl groups but may also be due to steric constraints. Attempts to prepare the bis(allyl) substituted complex [Mo(CO)4{Ph2PC(allyl)2PPh2}] were only moderately successful. The crystal structures of nine of these complexes are presented.

Catalytic (co)dimerization of alkyl acrylates

The alkyl acrylates, e.g., methyl or ethyl acrylate, are improvedly dimerized, or codimerized with a conjugated diene, by contacting same with a catalytically effective amount of (a) at least one palladium source, (b) at least one organophosphorus(III) compound, and (c) at least one hydracid HY, the anion Y- of which does not coordinate with palladium ions.

Synthesis of aldehydes from alcohols

A catalyst has been found for the low pressure hydroformylation of alcohols to produce aldehydes. This catalyst consists of a rhodium containing compound, an iodide containing compound, and a chelating Group V compound, which is used alone or in combination with a monodentate, Group V compound. It is the first rhodium-based catalyst that generates acetaldehyde via hydroformylation of the methanol. The reaction is typically carried out at 160°-180° C. and 1000-2000 psi. The acetaldehyde rate and selectivity are 1-5 Mhr-1 and 50-75%. Conventional cobalt catalysts require operating pressures of at least 3000-6000 psi in order to obtain reasonable productivities.