425370-51-0

Basic information

• Product Name: [Pt(η2-(prop-1-ynyl)diphenylphosphine)(1,2-bis(dicyclohexylphosphino)ethane)]
• CAS NO: 425370-51-0
• Molecular Weight: 841.937
• Mol File: 425370-51-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Pt(η2-(prop-1-ynyl)diphenylphosphine)(1,2-bis(dicyclohexylphosphino)ethane)](CAS DataBase Reference)
• NIST Chemistry Reference: [Pt(η2-(prop-1-ynyl)diphenylphosphine)(1,2-bis(dicyclohexylphosphino)ethane)](425370-51-0)
• EPA Substance Registry System: [Pt(η2-(prop-1-ynyl)diphenylphosphine)(1,2-bis(dicyclohexylphosphino)ethane)](425370-51-0)

Safety Data

• Hazardous Substances Data: 425370-51-0(Hazardous Substances Data)

Upstream product

• 90667-70-2 dichloro{bis(dicyclohexylphosphino)ethane}platinum(II) 
• 102286-39-5 ethylene{bis(dicyclohexylphosphino)ethane}platinum⁽⁰⁾ 
• 6224-94-8 diphenyl-prop-1-ynyl-phosphane 

Downstream Products

• 425370-53-2 [Pt(C(=CHMe)PPh2-κC,P)(1,2-bis(dicyclohexylphosphino)ethane)]Cl 
• 425370-52-1 [PtCl(C(=CHMe)PPh₂)(1,2-bis(dicyclohexylphosphino)ethane)] 
• 425370-56-5 [Pt(η2-Ph2P(O)C2Me)(1,2-bis(dicyclohexylphosphino)ethane)] 

Relevant articles and documents

Preparation and reactivity of mononuclear platinum(0) complexes containing a η2-coordinated alkynylphosphine

Displacement of ethene from [Pt(η2-C2H4)(dcpe)] by Ph2PC≡CMe gives the monomeric η2-alkynylphosphine complex [Pt(η2-Ph2PC≡CMe)(dcpe)] (5). Reaction of 5 with one equivalent of HCl forms, in benzene, the four-coordinate η1-vinyl-platinum(II) complex [PtCl{C(=CHMe)PPh2}(dcpe)] (6) by regiospecific addition of the proton to the alkyne carbon atom bearing the methyl group. In dichloromethane, reversible dissociation of the chloride ion from 6 takes place and the cation [Pt{C(=CHMe)PPh2-κP,C1}(dcpe)]+ (6′) that contains a three-membered methylenephosphaplatinacycle fragment can be observed. Treatment of complex 5 with methyl iodide results in the formation of a phosphonium salt [Pt{η2-C(=CH2)=CHPPh2Me}(dcpe)] +I-, [8]I, in which the alkynylphosphine has rearranged to the corresponding allene. The alkynylphosphine complex 5 is cleanly oxidised at phosphorus in the presence of sulfur or air to give the corresponding sulfide or oxide [Pt(η2-Ph2P(X)C≡CMe)(dcpe)] (X = S (9), O (10)). Complexes 5, 6, 8, 9 and 10 have been structurally characterised by single-crystal X-ray diffraction analysis.