Reactions of alkynyl- and alkenylplatinum(II) compounds. 1. Formation of alkoxycarbene ligands within the coordination sphere of platinum

Coordination Chemistry of Perhalogenated Cyclopentadienes and Alkynes, XXIX. The Reaction of Ni(0) and Pt(0) Phosphane Complexes with Trichloroethene, Hexachloro- and Hexabromocyclopentadiene

“…fourty years ago [1]. These studies showed that while with tetrachloroethene a Pt(0) π complex could be isolated, trichloroethene or dichloroethene yielded only σ -vinyl complexes of Pt(II), and chloroalkanes like CHCl 3 or CCl 4 produced mainly [Pt(PPh 3 ) 2 Cl 2 ]. Later on, the reactivity of the formed α-chlorovinyl complexes was studied by Chisholm et al [2] and Otsuka et al [3].…”

“…These studies showed that while with tetrachloroethene a Pt(0) π complex could be isolated, trichloroethene or dichloroethene yielded only σ -vinyl complexes of Pt(II), and chloroalkanes like CHCl 3 or CCl 4 produced mainly [Pt(PPh 3 ) 2 Cl 2 ]. Later on, the reactivity of the formed α-chlorovinyl complexes was studied by Chisholm et al [2] and Otsuka et al [3]. The oxidative addition of tetrachloroethene to Ni(0) phosphane complexes was examined by Wada et al since 1979 [4], and the reactivity of σ -trichlorovinyl nickel complexes was studied by Muller et al in 1985 [5].…”

Transition metal carbene chemistry7: Nucleophilic substitution reactions of imidazolide and benzimidazolide ions with Fischer carbene complexes in MeOH

“…Though, in most synthetic applications the common nucleophiles used include amines [2,[4][5][6][7][8], hydrazine [2,9], oximes [2,10], alkoxide ions [2,4,11], thiolate ions [2,4, [12][13][14], carbanions [14][15][16][17][18][19], (mainly aryl and alkyl lithium) as well as others [2, [20][21][22], the first kinetic investigation on nucleophilic substitution reaction was that of Werner et al who studied the reaction of 4-Cr-Z with several primary aliphatic amines (n-BuNH 2 , C 6 H 11 NH 2 , C 6 H 5 CH 2 NH 2 ) in n-decane, dioxane, methanol and dioxane-methanol (1:1) [8]. There have been few other kinetic studies in the early literature; these investigations focused mainly on reactions with amines [4, [23][24][25] and phosphines [4, 26,27] in weakly polar organic solvents.…”

Transition metal carbene chemistry 5: Kinetic studies on the nucleophilic substitution reactions of (CO)5MC(SCH3)CH3 (M=Cr and W) with primary amines in aqueous acetonitrile

“…(1) involves the reactions of Fischer carbene complexes with amines, it includes a proton transfer as additional step compared to their reactions with anionic species like MeO À , RS À , carbanions, etc. Though in most synthetic applications common nucleophiles such as amines [1,[3][4][5][6][7], hydrazine [1,8] oximes [1,9], alkoxide ions [1,3,10] thiolate ions [1,3,[11][12][13], carbanions [13][14][15][16][17][18], (mainly aryl and alkyl lithium) as well as others [1,[19][20][21] were involved, there have been relatively few kinetic studies in the early literature. These investigations focused mainly on reactions with amines [3,[22][23][24] and phosphines [3,25,26] in non-polar organic solvents.…”