3676-96-8

Basic information

• Product Name: Diphosphine, 1,2-dimethyl-1,2-diphenyl-
• CAS NO: 3676-96-8
• Molecular Formula: C14H16P2
• Molecular Weight: 246.229
• Mol File: 3676-96-8.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Diphosphine, 1,2-dimethyl-1,2-diphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Diphosphine, 1,2-dimethyl-1,2-diphenyl-(3676-96-8)
• EPA Substance Registry System: Diphosphine, 1,2-dimethyl-1,2-diphenyl-(3676-96-8)

Safety Data

• Hazardous Substances Data: 3676-96-8(Hazardous Substances Data)

Upstream product

• 3497-00-5 phenylthiophosphonic acid dichloride 
• 22846-16-8 ethylene phenyl phosphite 
• 6372-48-1 methylphenylphosphine 
• 822-68-4 cyclohexylphosphine 
• 829-85-6 diphenylphosphane 
• 90050-09-2 Methyl-cyclohexylphosphin 
• 917-54-4 methyllithium 
• 3376-52-1 pentaphenylcyclopentaphosphane 
• 74-88-4 methyl iodide 
• 3619-83-8 meso-1,2-dimethyl-1,2-diphenyldiphosphine disulfide 
• 59877-21-3 methyl(phenyl)(trimethylsilyl)phosphine 

Downstream Products

• 15849-86-2 methyl(phenyl)chlorophosphine 
• 96775-95-0 P,P'-Dimethyl-P,P'-diphenyl-diphosphinmonosulfid 
• 4271-13-0 methylphenylphosphinic acid 

Relevant articles and documents

Selectivity effects in zirconium-catalyzed heterodehydrocoupling reactions of phosphines

Zirconium compounds are known to dehydrocouple phosphines catalytically. An exploration of the factors that may promote selective heterodehydrocoupling was performed, revealing that steric factors are important but do not provide substantial selectivity. It was observed that 5-(Me3SiNCH2CH2)2N(CH2CH2NSiMe2CH2)Zr (1) may be sufficiently Lewis acidic to perform Lewis acid or frustrated Lewis pair catalysis.

Differences in the stability of zirconium(IV) complexes related to catalytic phosphine dehydrocoupling reactions

Relating to the catalytic dehydrocoupling of secondary phosphine substrates, zirconium phosphide complexes supported by triamidoamine and pentamethylcyclopentadienyl ligands exhibit different stability that is attributed to β-hydride elimination.

Phosphinocyclopentadienide via Cyclopentadienylphosphide

Lithiumorganyls RLi (R = Me, Bu, Ph) add to (PhP)5 in successive degradation and disproportionation equilibria depending on the ratio of the reactants.At -70 deg C (R = Me) disproportionation is blocked and (PhP)4R(-) and (PhP)3R(-) can be detected.With excess RLi monophosphides PhPR(-) are formed.CpNa with the help of a crown ether degrades (PhP)5 or substitutes cyanide from PhPCN(-) to give an equilibrium mixture of (PhP)nCp(-) anions, which stabilize by proton shifts: In case of n = 1 and 2 a shift from the Cp unit to the terminal phosphorus results in the formation of the phenylphosphino- and diphenyldiphosphino-cyclopentadienide anion, in case of n = 3 two proton shifts within the Cp unit result in a cyclopenteno-1,2,3-triphospholene allylic anion. - Keywords: Cyclophosphane, Cyclopentadienide, Nucleophilic Degradation, 31P NMR Spectra