A convenient synthesis of bis(tri-t-butylphosphine)platinum(0) and its oxidative addition and ligand exchange reactions

Sterically Hindered Phosphonium Salts: Structure, Properties and Palladium Nanoparticle Stabilization

“…Srivastava and co-workers reported the synthesis of tri- tert -butyl(methyl)phosphonium iodide in the coordination sphere of Pt from ( t -Bu 3 P) 2 Pt and iodomethane [ 53 ]. The reaction of [CpFe(CO) 2 CH 2 Br] with tri- tert -butylphosphine under mild conditions and following bromide–anion exchange reaction with BAr 4 − were reported in 1989 [ 54 ].…”

Direct synthesis of alkylsilanes by platinum-catalyzed coupling of hydrosilanes and iodoalkanes

“…The doublet peaks observed in the reaction 1 H NMR (((tBu) 3 PCH 3 ) + I -: d 1.74 (d, J = 12.0 Hz), 1.55 (d, J = 14.5 Hz); PtP(tBu) 3 : d 1.50 (d, J = 13.0 Hz)) are characteristic of ((tBu) 3 PCH 3 ) + I À and PtP(tBu) 3 . 16,17 The aforementioned potentially explains why Pt(P(tBu) 3 ) 2 could not successfully catalyze the reactions of much bulkier secondary or tertiary iodoalkanes. Here, PtP(tBu) 3 , which is a highly reactive species, is most likely coordinated by acetonitrile and thus, present in solution as the more stable complex, PtP(tBu) 3 (CD 3 CN) n (n = 0-2).…”

A chemical, FT-IR and EXAFS study of the interaction between HFe4(CH)(CO)12 and partially dehydroxylated alumina

“…The first column of Table III lists the results obtained for the reaction of H2 with a material corresponding to 1.5 wt % Fe on PDA. As shown in Table III, 89% of the H2 consumed in the reaction is accounted for by assuming that the product formation follows eq 6, and the total amount of carbon in the products agrees nCO + (2« + 1)H2 -C"H2"+2 + zzH20 (6) well with the amount of carbon that would have been lost, in the form of CO, if the system was heated under vacuum at 175 °C (cf. Table I).…”