91425-16-0

Basic information

• Product Name: Phosphine, (diphenylethenylidene)[2,4,6-tris(1,1-dimethylethyl)phenyl]-
• CAS NO: 91425-16-0
• Molecular Formula: C32H39P
• Molecular Weight: 454.635
• Mol File: 91425-16-0.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: Phosphine, (diphenylethenylidene)[2,4,6-tris(1,1-dimethylethyl)phenyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine, (diphenylethenylidene)[2,4,6-tris(1,1-dimethylethyl)phenyl]-(91425-16-0)
• EPA Substance Registry System: Phosphine, (diphenylethenylidene)[2,4,6-tris(1,1-dimethylethyl)phenyl]-(91425-16-0)

Safety Data

• Hazardous Substances Data: 91425-16-0(Hazardous Substances Data)

Upstream product

• 88721-96-4 t-butyldimethylsilyl(2,4,6-tri-t-butylphenyl)phosphine 
• 525-06-4 diphenyl ketene 
• 119-61-9 benzophenone 
• 83115-12-2 (2,4,6-tri-tert-butylphenyl)phosphine 
• 118281-80-4 [1-Chloro-1-trimethylsilanyl-meth-(Z)-ylidene]-(2,4,6-tri-tert-butyl-phenyl)-phosphane 
• 86120-24-3 (2,4,6-tri-tert-butyl)phenylmonochlorophosphane 
• 100281-24-1 2,2-dichloro-1-(2,4,6-tri-tert-butylphenyl)-1-phosphaethene 
• 4214-38-4 (diphenylmethylene)triphenylphosphorane 
• 87174-75-2 2,4,6-tri-tert-butylphenylphosphaketene 

Downstream Products

• 100281-24-1 2,2-dichloro-1-(2,4,6-tri-tert-butylphenyl)-1-phosphaethene 
• 132916-39-3 3-Benzhydrylidene-2,2-dichloro-1-(2,4,6-tri-tert-butyl-phenyl)-phosphirane 
• 138869-21-3 1,1-Dichloro-3,3-diphenylallene 
• 105020-24-4 4,4-Diphenyl-1-(2,4,6-tri-t-butylphenyl)-1-phospha-1,2,3-butatriene 
• 132916-52-0 tert-Butyl-(3,3-diphenyl-prop-1-ynyl)-(2,4,6-tri-tert-butyl-phenyl)-phosphane 
• 132916-51-9 (4,4-Dimethyl-3,3-diphenyl-pent-1-ynyl)-(2,4,6-tri-tert-butyl-phenyl)-phosphane 
• 109709-02-6 tricarbonyl{1-(2',4',6'-tri-t-butylphenyl)-3,3-diphenyl-1-phosphaallene}nickel⁽⁰⁾ 

Relevant articles and documents

Reduction of monophosphaallenes: An EPR study and ab initio investigations of (HPCCH2)-· and (HPCHCH2)· radicals

Cyclic voltammetry shows that monophosphaallene ArP=C=C(C6H5)2 (where Ar = C6H2tBu3-2,4,6), 1a, undergoes irreversible reduction at 2266 mV in THF. The EPR spectra of the reduction products are obtained in liquid and frozen solutions after specific 13C enrichment of the allenic carbon atoms. The resulting hyperfine tensors are compared with those obtained from ab initio MP2, MCSCF, CI, and DFT calculations for the radical anion (HP=C=CH2)-· and for the monophosphaallylic radical (HP·-CH=CH2) ? (HP=CH-·CH2). The most elaborate treatments of the hyperfine structure (CI and DFT) indicate that the species observed by EPR is the monophosphaallylic radical.

A NEW DIRECT METHOD FOR INTRODUCING 2-(2,4,6-TRI-t-BUTYLPHENYL)-2-PHOSPHAVINYLIDENE GROUP. FORMATION OF 1-PHOSPHA- AND 1,3-DIPHOSPHA-ALLENES

2-Phosphavinylidene group was introduced by the corresponding trimethylsilyllithio compound toward carbonyl compounds to give 1-phosphaallenes, whereas 1,3-diphosphaallene was prepared by the reaction of 1-chloro-2-phosphavinyllithium toward a phosphinous chloride followed by dehydrochlorination.

Phosphaallene

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