198888-22-1

Basic information

• Product Name: [(p-CH3-C6H4)3P]2Pt[η(2)-CH3CC.tplbond.CC.tplbond.CCH3]
• CAS NO: 198888-22-1
• Molecular Weight: 881.937
• Mol File: 198888-22-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [(p-CH3-C6H4)3P]2Pt[η(2)-CH3CC.tplbond.CC.tplbond.CCH3](CAS DataBase Reference)
• NIST Chemistry Reference: [(p-CH3-C6H4)3P]2Pt[η(2)-CH3CC.tplbond.CC.tplbond.CCH3](198888-22-1)
• EPA Substance Registry System: [(p-CH3-C6H4)3P]2Pt[η(2)-CH3CC.tplbond.CC.tplbond.CCH3](198888-22-1)

Safety Data

• Hazardous Substances Data: 198888-22-1(Hazardous Substances Data)

Upstream product

• 50525-35-4 [(p-CH₃-C₆H₄)3P]2PtCl₂ 
• 1038-95-5 Tri(p-tolyl)phosphine 
• 87888-73-1 [(p-CH3-C6H4)3P]2Pt(η(2)-H2C=CH2) 
• 2809-69-0 2,4-hexadiyne 

Relevant articles and documents

Formation of platinum allyl and propargyl complexes from protonation of platinum enyne and diyne complexes

Protonation of (Ph3P)2Pt[η2-HC=CC(CH3) =CH2] (2a) with excess HBF4·Et2O produced the π-allyl complex (Ph3P)2Pt[η3-H2C=CC(CH 3)=CH2] +BF4- (3a-BF4) instead of a π-propargyl complex. Reaction of excess CF3CO2H with 2a initially produced the analogous π-allyl complex 3a-CF3CO2 which then added CF3CO2H across the vinylidene unit of 3a-CF3CO2 to give the π-allyl complex (Ph3P)2Pt[η3-CH3C(CF 3CO2)C(CH3)CH2]+CF 3CO2- (5a). Protonation of the platinum diyne complex [(p-CH3-C6H4)3P] 2Pt(η2-CH3C≡CC≡CCH3) (7b) with HBF4·Et2O at -73°C initially produced the platinum hydride complex trans-[(p-CH3-C6H4)3P] 2-PtH(η2-CH3C ≡ CC ≡ CCH3) +BF4- (9), which rearranged to the platinum π-propargyl complex [(p-CH3-C6H4)3P] 2Pt[η3-(CH3CH=)-CC ≡ CCH3]+BF4- (11) at -28°C.