BIS(DIPHENYLPHOSPHINO)ACETYLENE

Name: BIS(DIPHENYLPHOSPHINO)ACETYLENE
Brand: Zhengzhou Whchem

CAS：5112-95-8 | BIS(DIPHENYLPHOSPHINO)ACETYLENE | Whchem

CAS: 5112-95-8

Other Names

BIS(DIPHENYLPHOSPHINO)ACETYLENE;[(Diphenylphosphino)ethynyl](diphenyl)phosphine;Phosphine, 1,2-ethynediylbis*diphenyl-;Phosphine, ethynylenebis*diphenyl-;Phosphine, ethynylenebis[diphenyl-;ethynylenebis[diphenylphosphine];Bis(diphenylphosphino)acetylene,97%;2-diphenylphosphinoethynyl(diphenyl)phosphine

Structure - BIS(DIPHENYLPHOSPHINO)ACETYLENE

Molecular Formula

Purity

>98%

Molecular Weight

394.38 g/mol

EINECS

225-842-8

Structure Available Verified Product

English Name	BIS(DIPHENYLPHOSPHINO)ACETYLENE
English Synonyms	BIS(DIPHENYLPHOSPHINO)ACETYLENE;[(Diphenylphosphino)ethynyl](diphenyl)phosphine;Phosphine, 1,2-ethynediylbisdiphenyl-;Phosphine, ethynylenebisdiphenyl-;Phosphine, ethynylenebis[diphenyl-;ethynylenebis[diphenylphosphine];Bis(diphenylphosphino)acetylene,97%;2-diphenylphosphinoethynyl(diphenyl)phosphine
CAS Number	5112-95-8
Molecular Formula	C26H20P2
Molecular Weight	394.38 g/mol
EINECS Number	225-842-8
Related Categories	organophosphine ligand;Achiral Phosphine;Aryl Phosphine;Ligand;Catalysis and Inorganic Chemistry;Phosphorus Compounds;Polydentate Phosphine Ligands
Mol File	Download MOL File
Structure Image

Property	Value
Melting point	86-88 °C (lit.)
Boiling point	529.6±33.0 °C (Predicted)
Storage condition	2-8°C, protect from light, stored under nitrogen
Form	Crystals or crystalline powder
Color	White
InChI	InChI=1S/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
InChIKey	FOWZHJNBFVLJGP-UHFFFAOYSA-N
SMILES	c1ccc(cc1)P(C#CP(c2ccccc2)c3ccccc3)c4ccccc4

BIS(DIPHENYLPHOSPHINO)ACETYLENE (CAS 5112-95-8) is an organophosphorus compound and phosphine-based material used in cross-coupling catalysis, ligand synthesis, flame retardants and electronic chemicals.

Zhengzhou Whchem supplies BIS(DIPHENYLPHOSPHINO)ACETYLENE with >98% purity, supporting both laboratory research and industrial production.

Category	Description (English Translation)
Uses & Synthesis Methods Bis(diphenylphosphino)acetylene	Uses & Synthesis Methods Uses: Bis(diphenylphosphino)acetylene is a potentially trifunctional ligand. It can serve as a ligand and plays an important role in transition metal organometallic chemistry and functional coordination chemistry. Synthesis Methods: n-Butyllithium (1.6 M in hexane, 18.8 mL, 30.0 mmol) is dissolved in a mixture of diethyl ether and tetrahydrofuran. The reaction mixture is cooled to -78°C. A solution of trichloroethylene (0.9 mL, 10.0 mmol) in diethyl ether (10 mL) is added to the reaction mixture. The reaction mixture is stirred at -78°C for 1 hour, then warmed to room temperature and stirred overnight. The resulting suspension is cooled again to -78°C. The cooled suspension is quickly added to a solution of chlorodiphenylphosphine (3.60 mL, 20.0 mmol) in diethyl ether (15 mL) at -78°C. The suspension is stirred at room temperature overnight. The solvent is removed by condensation under reduced pressure. The residue is extracted with pentane to give the product bis(diphenylphosphino)acetylene.

Category

Description (English Translation)

Uses & Synthesis Methods

Bis(diphenylphosphino)acetylene

Uses & Synthesis Methods

Uses: Bis(diphenylphosphino)acetylene is a potentially trifunctional ligand. It can serve as a ligand and plays an important role in transition metal organometallic chemistry and functional coordination chemistry.

Synthesis Methods: n-Butyllithium (1.6 M in hexane, 18.8 mL, 30.0 mmol) is dissolved in a mixture of diethyl ether and tetrahydrofuran. The reaction mixture is cooled to -78°C. A solution of trichloroethylene (0.9 mL, 10.0 mmol) in diethyl ether (10 mL) is added to the reaction mixture. The reaction mixture is stirred at -78°C for 1 hour, then warmed to room temperature and stirred overnight. The resulting suspension is cooled again to -78°C. The cooled suspension is quickly added to a solution of chlorodiphenylphosphine (3.60 mL, 20.0 mmol) in diethyl ether (15 mL) at -78°C. The suspension is stirred at room temperature overnight. The solvent is removed by condensation under reduced pressure. The residue is extracted with pentane to give the product bis(diphenylphosphino)acetylene.

Category	Value
Hazard Symbol	Xi
Hazard Codes (R Phrases)	36/37/38
Safety Codes (S Phrases)	26-37/39
WGK Germany	3
TSCA	Yes
HS Code (Customs)	29310099
Storage Category	11 - Combustible solids

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BIS(DIPHENYLPHOSPHINO)ACETYLENE

CAS：5112-95-8 | BIS(DIPHENYLPHOSPHINO)ACETYLENE | Whchem

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