199061-55-7

Upstream product

• 12120-15-9 ethylenebis(triphenylphosphine)platinum⁽⁰⁾ 
• 3355-31-5 1-chloro-3-phenyl-2-propyne 
• 1794-48-5 1-bromo-3-phenylprop-2-yne 
• 14221-02-4 tetrakis(triphenylphosphine)platinum 
• 198977-73-0 Pt(CH₂CCC₆H₅)(P(C₆H₅)3)2⁽¹⁺⁾*BF₄^(1-)=[Pt(CH₂CCC₆H₅)(P(C₆H₅)3)2]BF₄ 
• 1112-67-0 tetrabutyl-ammonium chloride 
• 174276-83-6 cis-[Pt(η(1)-CH2CCPh)(Cl)(PPh3)2] 
• 603-35-0 triphenylphosphine 
• 199061-55-7 trans-[Pt(η(1)-CH2CCPh)(Cl)(PPh3)2] 
• 14221-01-3 tetrakis(triphenylphosphine) palladium⁽⁰⁾ 

Downstream Products

• 199061-55-7 trans-[Pt(η(1)-CH2CCPh)(Cl)(PPh3)2] 
• 199061-55-7 trans-[Pt(CPh=C=CCH₂)(Cl)(PPh₃)2] 
• 13517-35-6 tris(triphenylphosphine)platinum⁽⁰⁾ 
• 172162-31-1 (P(C₆H₅)3)Pd(C₆H₅CCCH₂)(Cl)Pd(P(C₆H₅)3) 
• 199061-53-5 cis-Pt(CH₂C_.tplbond.CPh)(C_.tplbond.CPh)(PPh₃)2 
• 174276-79-0 trans-Pt(CH₂C_.tplbond.CPh)(I)(PPh₃)2 

Relevant academic research and scientific papers

Kinetic evidence for π-complex formation prior to oxidative addition of propargyl halides to triphenylphosphine-platinum(O) complexes

The mechanism of oxidative addition of phenylpropargyl halides to Pt(PPh3)4 to give Pt-(η1-CH2C=CPh)(X)(PPh3)2 has been investigated on the basis of the kinetics of the reaction and stereomeric analysis of the products. The kinetic results of the reaction showed the contributions of two pathways involving Pt(PPh3)3 and Pt(PPh3)2 complexes as active species. The second-order rate constants for both pathways were on the order of 103 larger than the corresponding rate constants of the oxidative addition reaction of CH3I. Moreover, both active species and the substrate halide gave, as the kinetic product, the isomer having two PPh3 groups located cis, which is also in sharp contrast to the case of the reaction of CH3I. It is proposed that the rate-determining step in the reaction involving Pt(PPh3)2 is the coordination of the C=C bond to Pt(PPh3)2 to form Pt(η2-PhC=CCH2X)(PPh3)2, which subsequently undergoes rapid collapse to the η3-propargyl complex [Pt(η3-CH2CCPh)(PPh3)2]X and eventually to cis-Pt(η1-CH2C=CPh)(X)(PPh3)2. The reaction of Pt(PPh3)3 may also involve a rate-determining C=C bond coordination step.

Intermolecular propargyl/allenyl group transfer from Pd(II) to Pt(0) and Pt(II) to Pd(0). Key reaction in metal-catalyzed isomerization between propargyl and allenyl metal complexes

Isomerization of phenyl-substituted propargylplatinum(II) complex, trans-Pt(CH2C≡CPh)(Cl)(PPh3)2 (1) to allenyl complex, trans-Pt(CPh=C=CH2)(Cl)(PPh3)2 (2) was found to be catalyzed by zerovalent complex Pd(PPh3)4. The reaction was proposed to proceed through the transfer of the propargyl/allenyl ligand both from Pt(II) to Pd(0) and Pd(II) to Pt(0). The former transfer, which seemingly has a thermodynamic disadvantage, has unambiguously been confirmed to take place; treatment of 1 with Pd(PPh3)4 or a mixture of Pd2(dba)3 and PPh3 resulted in the formation of Pd(I) complex, Pd2(μ-PhCCCH2)(μ-Cl)(PPh3)2 which lies in equilibrium with a mixture of propargyl/allenylpalladium(II) and Pd(0) complexes.

Structure-Reactivity Relationship in Allyl and 2-Propynyl Complexes of Group 10 Metals Relevant to Homogeneous Catalysis

Recent developments in the understanding of some fundamental reactions undergone by group 10 metal allyl and propargyl (2-propynyl) complexes are described. Emphasis was placed on the bonding-reactivity relationship of these complexes which are relevant a

Mechanistic studies on mutual isomerization of propargyl- and allenylplatinum (II) complexes

When heated in benzene, phenyl-substituted propargylplatinum(II) complexes, trans-Pt(CH2C≡CPh)(X)(PPh3)2 (2) (X = Cl, Br, I), isomerized gradually to the more stable allenyl isomers, trans-Pt(CPh=C=CH2) (X) (PPh