4473-11-4Relevant academic research and scientific papers
Orthomercurated and cycloaurated derivatives of the iminophosphorane Ph3P{double bond, long}NPh
Brown, Samuel D.J.,Henderson, William,Kilpin, Kelly J.,Nicholson, Brian K.
, p. 1310 - 1315 (2007)
Ortho-lithiation of Ph3P{double bond, long}NPh followed by reaction with HgCl2 gave good yields of [Hg{C6H4(PPh2{double bond, long}NPh)-2}Cl], 3, which was characterised spectroscopically and by an X-
Synthesis and Reactivity of Ortho-Mercuriated and Orthio-Palladated Arylacetals and Cyclic and Acyclic Aryldithioacetals. New Examples of the Rearrangement of Acyclic Dithioacetal Aryl- to Dithioether Alkyl-Palladium Complexes
Vicente, Jose,Abad, Jose-Antonio,Hernandez-Mata, Francisco S.,Rink, Barbara,Jones, Peter G.,Ramirez de Arellano, M. Carmen
, p. 1292 - 1304 (2008/10/09)
The synthesis of ortho-palladated complexes by transmetalation reactions was studied using arylmercurials, by oxidative additions of the haloarenes to palladium(0) species. Orthopalladated amines or imines were synthesized by reacting them with palladium acetate. The reactions with isocyanides giving complexes were studied resulting after mono or tri-insertion. The greater trans influence of the aryl with respect to the chloro ligand caused the Pd-N(2) distance to be longer than the PdN(1) bond length.
Bis(2,6-dinitroaryl)platinum complexes. 1. Synthesis through transmetalation reactions
Vicente, Jose,Arcas, Aurelia,Galvez-Lopez, Maria Dolores,Jones, Peter G.
, p. 3521 - 3527 (2008/10/09)
Complexes cis-Q[Pt(κ2-Ar)(κ1-Ar)Cl] [Q = Ph3PCH2Ph (1), Me4N (2); κ2-Ar = C6(NO2)2-2,6-(OMe)3-3,4,5- κ2-C,O;κ1-Ar = C6
Synthesis of mercury(II) and palladium(II) organometallic derivatives of terephthaldehyde by metalation, transmetalation, oxidation, and condensation reactions.
Vicente, José,Abad, José-Antonio,Rink, Barbara,Hernández, Francisco-Santos,Ramirez De Arellano, M. Carmen
, p. 5269 - 5282 (2008/10/08)
The organomercurials [HgCl{C6H3(CHO)2-2,5}] (1) and [Hg{C6H3(CHO)2-2,5}2] (2) have been prepared by mercuriation of terephthaldehyde. Palladium complexes [PdCl{C6H3-(CHO)2-2,5}(N-N)] (N-N = N,N,N′,N′-tetramethylethylenediamine (tmeda) (3) or 2,2′-bipyridine (bpy) (3′)) or trans-[PdCl{C6H3(CHO)2-2,5}(PPh 3)2]·H2O (4) have been obtained by reacting (Me4N)2[Pd2Cl6] or trans-[PdCl2(PPh3)2], respectively, with 1 or 2. The reaction of potassium permanganate with complexes 3 and 3′ or mercurial 1 results in the selective oxidation of the 5-formyl substituent affording [PdCl{C6H3(CHO)-2-(CO2H)-5}(N-N)] (N-N = tmeda (5), bpy (5′)) or, respectively, a mixture whose major component is the fully oxidized [HgCl{C6H3(CO2H)2-2,5}] (7) or a mixture of isomers [HgCl{C6H3(CHO)-2-(CO2H)-5}]/[HgCl-{C 6H3(CO2H)-2-(CHO)}] (8a/8b) depending on the molar ratio of the reagents. The reaction of mixtures containing 7 or 8 with trans-[PdCl2(PPh3)2] give pure trans-[PdCl{C6H3(CO2H) 2-2,5}(PPh3)2] (9) or trans-[PdCl{C6H3(CHO)-2-(CO2H)-5}(PPh 3)2] (10), respectively. Complexes 3 and 3′ react with amines and NaClO4·H2O or Tl(CF3SO3) to give, depending of the reaction conditions, cyclopalladated derivatives [Pd{C6H3(CH=NR)-2-(CH=NR)-5}(N-N)]+ or [Pd-{C6H3(CH=NR)-2-(CHO)-5}(tmeda)]+. The mercurial 1 reacts with hydroxylamine to give the mercuriated oxime [HgCl{C6H3(CH=NOH)2-2,5}] (14), which reacts with (Me4N)2[Pd2-Cl6] to give the cyclopalladated complex [Pd{C6H3(CH=NOH)-2-(CH=NOH)-5}(μ-Cl]2 (15). From 15 some derivatives have been prepared. Complex 3 reacts with NH2OMe to give [Pd{C6H3(CH=NOMe)-2-(CH=NOMe)-5}(tmeda)]ClO 4(19). Theimine C6H4(CH=NTo)2-1,4(To = C6H4Me-4) reacts with palladium(II) acetate to give the dipalladated imine [Pd{C6H 2-(CH=NTo)-2-{Pd(μ-OAc)}-4-(CH=NTo)-5}(μ-OAc)]n (20). Hydrolysis of 20 in the presence of potassium bromide and bpy results in the formation of [C6H2{PdBr(bpy)}2-1,4-(CHO)2-2,5] (21), from which [C6H2{Pd(PPh3)(bpy)}2-1,4-(CHO) 2-2,5](CF3SO3)2 (22) can be prepared. The structures of 9·Me2CO·1.5MeOH, 10·2CH2Cl2 and [Pd{C6H3(CH=NR)-2-(CHO)-5}(tmeda)]CF3SO 3 (R = C6H4NH2-4) (12c′) have been determined by X-ray crystallography.
