78605-35-3

Basic information

• Product Name: Phosphine oxide, 1,2-phenylenebis[diphenyl-
• CAS NO: 78605-35-3
• Molecular Formula: C30H24O2P2
• Molecular Weight: 478.467
• Mol File: 78605-35-3.mol
• Article Data: 8

Chemical Properties

• CAS DataBase Reference: Phosphine oxide, 1,2-phenylenebis[diphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine oxide, 1,2-phenylenebis[diphenyl-(78605-35-3)
• EPA Substance Registry System: Phosphine oxide, 1,2-phenylenebis[diphenyl-(78605-35-3)

Safety Data

• Hazardous Substances Data: 78605-35-3(Hazardous Substances Data)

Upstream product

• 367-11-3 ortho-difluorobenzene 
• 829-85-6 diphenylphosphane 
• 13991-08-7 o-phenylenebis(diphenylphosphine) 
• 75-05-8 acetonitrile 
• 583-55-1 1-Bromo-2-iodobenzene 
• 4559-70-0 Diphenylphosphine oxide 
• 178381-38-9 1-diphenylphosphinyl-2-diphenylphosphinobenzene 
• 5112-95-8 bis(diphenylphosphino)acetylene 
• 504-31-4 pyran-2-one 
• 22428-64-4 Bis(diphenylphosphanyl)acetylene P,P'-dioxide 

Downstream Products

• 13991-08-7 o-phenylenebis(diphenylphosphine) 
• 873-32-5 2-Chlorobenzonitrile 
• 178381-38-9 1-diphenylphosphinyl-2-diphenylphosphinobenzene 
• 895536-27-3 Be(C₆H₄(PO(C₆H₅)2)2)(NO₃)2 

Relevant articles and documents

Photoluminescent tetrazolate-based Eu(III) complexes: An outstanding impact of aromatic phosphine oxide co-ligands on the photoluminescence quantum yields

New ternary Eu(III) 5-(2-pyridyl-1-oxide)tetrazolate complexes with phosphine oxide co-ligands have been synthesized and characterized by elemental analysis, and IR and 1H NMR spectroscopic techniques. The analytical data revealed that these complexes are

Efficient copper(I)-catalyzed coupling of secondary phosphine oxides with aryl halides

A catalytic system has been developed for the efficient synthesis of tertiary arylphosphine oxides by coupling of readily available secondary phosphine oxides with aryl bromides or iodides in the presence of copper(I) iodide as a catalyst and (S)-α-phenylethylamine as a ligand. The system exhibits high activity in the coupling of secondary diaryl-, alkylaryl- and dialkylphosphine oxides.

Bisphosphine monoxides with o-phenylene backbones in Pt, Pd and Fe complexes

A new route to aromatic bisphosphine monoxides has been explored through ortholithiation of triphenylphosphine oxide and subsequent reaction of the lithiated intermediate with a range of alkyl and aryl phosphine chlorides. Routes to the known bisphosphine monoxide (BMPO) (o-C6H4){P(O)Ph2}PPh2 (2aO) and a range of new BPMOs of the type Ph2P(O)(o-C6H4)PR2 where R2 = iPr2, Cy2, Et2 are described. Reaction of 2aO with MCl2(cod) (M = Pd, Pt; cod = cyclooctadiene) gives products of the form [MCl(κ1-P-2aO)(κ2-P,O-2aO)]+ Cl- and MCl2(κ2-P,O-2aO); the former exhibits fluxional behaviour which has been analysed by 195Pt NMR and 31P variable-temperature NMR spectroscopy. The bidentate complex is not fluxional for either the Pd or the Pt example; the Pt complex PtCl2(κ2-P,O-2aO) has been characterised by X-ray crystallography. By comparison of the product distribution seen by 31P NMR spectroscopy and ESI-MS it was established that the different coordination modes of 2aO result in quite different behaviour of the complexes when studied by ESI-MS; when the O is formally coordinated to the metal its ionisation efficiency is very low. Synthesis of Fe(CO)4(2aO) confirmed the ability of the 2aO ligand to render a neutral complex with no alternative pathways for ionisation to be readily detected by ESI-MS.