90065-11-5Relevant academic research and scientific papers
Experimental and theoretical studies on the course of CO insertion into Pt-C and Pd-C bonds in neutral and cationic complexes, [MR(Cl){P(CH3)3}2] and [MR{P(CH3)3}2(s)]+BF 4<
Kayaki, Yoshihito,Tsukamoto, Hirokazu,Kaneko, Masaki,Shimizu, Isao,Yamamoto, Akio,Tachikawa, Masanori,Nakajima, Takahito
, p. 199 - 209 (2007/10/03)
Behavior of neutral and cationic cis- and trans-monoorganoplatinum complexes has been examined and compared with that of the corresponding monoorganopalladium complexes. The cis- and trans-monoorganoplatinum complexes having two trimethylphosphine ligands
Synthetic, structural and inelastic neutron scattering studies of the hydrido-bridged cationic complexes [(PMe3)2(Y)Pt(μ-H)Pt(Y)(PMe3) 2]+ (Y = Ph, C6F5, C6Cl5
Albinati, Alberto,Chaloupka, Stanislav,Eckert, Jürgen,Venanzi, Luigi M.,Wolfer, Martin K.
, p. 305 - 316 (2008/10/08)
The mono-hydrido-bridged diplatinum complexes [(PMe3)2(C6X5)Pt(μ-H)Pt(C 6X5) (PMe3)2] (CF3SO3) (X = H, F, Cl) were prepared from the correspondin
Reaction of organoboron compounds with platinum(II) disolvento complexes
Siegmann, Konstantin,Pregosin, Paul S.,Venanzi, Luigi M.
, p. 2659 - 2664 (2008/10/08)
Cationic complexes cis-[Pt(S)2L2]2+ (L = PMe3, PEt3, or PPh3; S = H2O or MeOH) react with arylboron derivatives ([BPh4]-, [B(p-Tol)4]-, [B(m-Tol)4]-, BPh3, B(OMe)Ph2, B(OMe)2Ph, and B(OH)2Ph) to give trans-[Pt(Ar)(S)L2]+ which are isolated and characterized as their halo derivatives trans-[PtX(Ar)L2]. When L = PMe3, the transient formation of cis-[Pt(Ar)(S)L2]+ is also observed. The cation cis-[Pt(CH3CN)2-(PEt3)2] 2+, however, reacts with [BPh4]- only when at least some of the solvent is hydroxylic. However the phenylation and cis-trans isomerization reactions are slowed down so that the intermediate formation of cis-[Pt(Ph)(CH3CN)(PEt3)2]+ cation can be observed. It is shown that [BPh4]- is not the phenylating agent as it decomposes to BPh3 and C6H6 prior to the phenylation reaction. Other phenylboron derivatives such as BPh3, B(OMe)Ph2, B(OMe)2Ph, and B(OH)2Ph can transfer all of their phenyl groups to platinum. It is found that the phenyl transfer is strictly regioselective; i.e., only the C atom bonded to boron is found coordinated to platinum. When [B(Me)(Ph)3]- is used, either a methyl or a phenyl group can be transferred to platinum.
Intermolecular activation of C-D bonds in benzene-d6 by trans-neopentyl(trifluoromethanesulfonato)bis(trimethyl-phosphine) platinum (II)
Brainard, Robert L.,Rodger Nutt,Randall Lee,Whitesides, George M.
, p. 2379 - 2386 (2008/10/08)
trans-(Me3P)2Pt(CH2C(CH3) 3)(SO3CF3) (L2PtNpTf, 1) reacts with benzene-d6 at 133°C and gives trans-(Me3P)2Pt(C6D5)(SO 3CF3) (2) and neopentane-d1 as the major products. When this reaction is carried out in concentrated solutions ([1]0 ≥ 0.04 M), small quantities of neopentane-d0 (8-17%) and 1,1-dimethylcyclopropane (1-3%) are also detected; larger quantities of neopentane-d0 are produced (32-45%) when the initial concentration of 1 is low ([1]0 = 0.01-0.03 M). The rate of reaction is decreased by the addition of Bu4N+Tr- and increased by the addition of Bu4N+BF4-. A competitive kinetic isotope effect was estimated by allowing 1 to react with C6D5H and comparing the relative yields of neopentane-d0 and neopentane-d1: kH/kD is large, but its quantitative value is uncertain because of experimental ambiguities. The mechanism for this reaction seems to involve generation of L2PtNp+ as an essential intermediate. This intermediate appears to react with benzene by direct oxidative addition of a C-H bond, but electrophilic attack on the benzene ring cannot be rigorously excluded.
