5112-95-8

Basic information

• Product Name: BIS(DIPHENYLPHOSPHINO)ACETYLENE
• Synonyms: BIS(DIPHENYLPHOSPHINO)ACETYLENE;[(Diphenylphosphino)ethynyl](diphenyl)phosphine;Phosphine, 1,2-ethynediylbis*diphenyl-;Phosphine, ethynylenebis*diphenyl-;Phosphine, ethynylenebis[diphenyl-;ethynylenebis[diphenylphosphine];Bis(diphenylphosphino)acetylene,97%;1,2-Bis(diphenylphosphino)ethyne
• CAS NO: 5112-95-8
• Molecular Formula: C₂₆H₂₀P₂
• Molecular Weight: 394.38
• EINECS: 225-842-8
• Product Categories: Ligand;Catalysis and Inorganic Chemistry;Phosphorus Compounds;Polydentate Phosphine Ligands;organophosphine ligand;Achiral Phosphine;Aryl Phosphine
• Mol File: 5112-95-8.mol
• Article Data: 7

Chemical Properties

• Melting Point: 86-88 °C(lit.)
• Boiling Point: 529.6 °C at 760 mmHg
• Flash Point: 291.4 °C
• Appearance: White/Crystals or Crystalline Powder
• Vapor Pressure: 9.04E-11mmHg at 25°C
• CAS DataBase Reference: BIS(DIPHENYLPHOSPHINO)ACETYLENE(CAS DataBase Reference)
• NIST Chemistry Reference: BIS(DIPHENYLPHOSPHINO)ACETYLENE(5112-95-8)
• EPA Substance Registry System: BIS(DIPHENYLPHOSPHINO)ACETYLENE(5112-95-8)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 5112-95-8(Hazardous Substances Data)

Usage

Chemical Properties

white to light yellow crystal powde

InChI:InChI=1/C26H20P2/c1-5-13-23(14-6-1)27(24-15-7-2-8-16-24)21-22-28(25-17-9-3-10-18-25)26-19-11-4-12-20-26/h1-20H

Upstream product

• 4301-15-9 ethynyldimagnesium dibromide 
• 1079-66-9 chloro-diphenylphosphine 
• 6224-94-8 diphenyl-prop-1-ynyl-phosphane 
• 22428-64-4 Bis(diphenylphosphanyl)acetylene P,P'-dioxide 
• 156-60-5 trans-1,2-dichloroethylene 
• 79-01-6 Trichloroethylene 
• 97135-49-4 bis(diisopropylamino)phosphanylnitrile 
• 6104-47-8 ethynyldiphenylphosphine 
• 74-86-2 acetylene 

Downstream Products

• 22428-66-6 (diphenylphosphino-ethynyl)-methyl-diphenyl-phosphonium; iodide 
• 130582-91-1 2,3-Bis-diphenylphosphanyl-4,6-diphenyl-phosphinine 
• 130582-92-2 2,3-Bis-diphenylphosphanyl-4-phenyl-6-p-tolyl-phosphinine 
• 72493-30-2 Bis-(diphenylphosphinoselenoyl)-acetylen 
• 22428-64-4 Bis(diphenylphosphanyl)acetylene P,P'-dioxide 
• 111690-49-4 tantalum-trans-dicarbonyl(Ph₂PCCPPh₂)(I)-trans-(trimethylphosphine)2 
• 124826-14-8 Mn₂((C₆H₅)2PCCP(C₆H₅)2)(CO)9 
• 128239-38-3 MoI₂(CO)3((C₆H₅)2PC)4 
• 75-05-8 acetonitrile 
• 603-36-1 triphenylantimony 
• 47720-30-9 {AgNO₃C₂₆H₂₀P₂} 
• 87160-28-9 [1,2-bis(diphenylphosphino)-3-methoxy-6-methylinden]tetracarbonylchromium 

Relevant articles and documents

The Trityl-Cation Mediated Phosphine Oxides Reduction

Reduction of phosphine oxides into the corresponding phosphines using PhSiH3 as a reducing agent and Ph3C+[B(C6F5)4]? as an initiator is described. The process is highly efficient, reducing a broad range of secondary and tertiary alkyl and arylphosphines, bearing various functional groups in generally good yields. The reaction is believed to proceed through the generation of a silyl cation, which reaction with the phosphine oxide provides a phosphonium salt, further reduced by the silane to afford the desired phosphine along with siloxanes. (Figure presented.).

Lithiation of 1,2-dichloroethene in flow microreactors: Versatile synthesis of alkenes and alkynes by precise residence-time control

It′s all about the timing: Precise control of the residence time (tRx; see picture) of reactive intermediates in flow microreactors enables the reaction pathway of lithiated 1,2-dichloroethene to be switched to produce either alkenes or alkynes. This method also allows versatile syntheses of asymmetric disubstituted dichloroalkenes and alkynes. Copyright

X-H (X = C, N, O, P, S) Bond Activations Induced by β-Heterosubstituted Zirconaindenes

The azazirconacyclopentene-substituted phosphines 3 and 4 have been found to activate the C-H bonds of acetylenic systems, such as methylpropiolate, diphenylphosphinoacetylene and phenylacetylene, or of methylene compounds, such as malonitrile and diethyl