具有不同钳位配体的钯氟苯基配合物Pd(Ar)[2,6-(t Bu 2 PCH 2)2 C 6 H 3 ](13),Pd(Ar)[2,6-(t Bu 2 PO)2 C 6 H 3 ](14),Pd(Ar)[{2,5-(t Bu 2 PCH 2)2 C 5 H 2 } Fe(C 5 H 5)](15)和Pd(Ar)[{ 2,5-(t Bu 2 PCH 2)2 C 5 H 2 } Ru(C 5 H 5)](16)是通过LiAr(Ar = C 6 H 4 F-4)与相应的三氟乙酸钯钯夹杂物9-12反应合成的。通过X射线晶体学方法确定14和16的分子结构。配合物13–16和{Pd(Ar)[{2,5-(t Bu 2 PCH 2)2 C 5 H 2 } Fe(C 5 H 5)]} PF 6(17)用多核NMR光谱和循环伏安法研究。基于19 F NMR化学位移和1 J(13 C– 19 F)耦合常数,以及Pd
The Sensitive Balance between Five-Coordinate Carbene and Six-Coordinate Carbyne Ruthenium Complexes Formed from Ruthenium Vinylidene Precursors
作者:Pablo González-Herrero、Birgit Weberndörfer、Kerstin Ilg、Justin Wolf、Helmut Werner
DOI:10.1021/om010422x
日期:2001.8.1
carbene complexes [Ru(κ2-O2CR1)C(CH2Ph)OC(O)R2}(PiPr3)2]BArf [R1 = R2 = CHF2 (7a), CF3 (7b); R1 = CF3, R2 = H (7c)] were obtained on protonation of the precursors [Ru(κ1-O2CR1)(κ2-O2CR2)(CCHPh)(PiPr3)2] (4a−c) with [H(OEt2)2]BArf. Both 7a and 7b undergo a fluxional process in solution resulting in a κ1/κ2 interconversion of the carboxylato groups. The crystal and molecularstructures of 2b, 5e, and 6a
二氯(亚乙烯基)钌化合物[RuCl 2(C CHR)L 2 ](R = Ph或t Bu和L = PCy 3或P i Pr 3)(1a - d)与[H(OEt 2)2 ] BAR ˚F(巴˚F - = [B C 6 H ^ 3(CF 3)2 -3,5} 4 ] - )导致质子的在C攻击β亚乙烯基配体的碳原子,并以几乎定量的产率得到相应的阳离子,五配位碳氮鎓络合物[RuCl 2(⋮CCH 2 R)L 2 ] BAr f(2a - d)。所述羧酸根衍生物将[RuCl(κ的质子化2 -O 2 CR)(Ç CHPh配合)(P我镨3)2 ] [R = H(图3a),CH 3(图3b),或PH(3F)]与[ H(OET 2)2 ] BAR ˚F导致形成五配位环状卡宾配合物[RuCl C(CH 2 Ph)OC(O)R}(P i Pr 3)2 ] BAr f [R = H(6a),CH 3(6b) ,
Ru(O<sub>2</sub>CCF<sub>3</sub>)<sub>2</sub>(PPh<sub>3</sub>)<sub>2</sub> and ruthenium phosphine complexes bearing fluoroacetate ligands: synthesis, characterization and catalytic activity
作者:Daniela A. Hey、Pauline J. Fischer、Walter Baratta、Fritz E. Kühn
DOI:10.1039/c9dt00334g
日期:——
starting from RuCl2(PPh3)3 or Ru2Cl(O2CCF3)3(PPh3)4(μ-H2O) and TlO2CCF3, correcting the reported preparation in which Ru2Cl(O2CCF3)3(PPh3)4(μ-H2O) was obtained. Ru(O2CCF3)2(PPh3)2 easily reacts with CO, affording Ru(O2CCF3)2(CO)2(PPh3)2. The protonation of Ru(OAc)2(dppb) with trifluoroacetic acid in the presence of bidentate O and N donor ligands affords the complexes Ru(O2CCF3)2(dppb)(LL) (LL = ethyleneglycol
Thallium(III) oxide as an oxidative reagent in organic chemistry
作者:I. F. Gun’kin
DOI:10.1134/s1070363210030138
日期:2010.3
Oxidative properties of thallium(III) oxide in various organic reactions were studied. Oxidative bromination of organic compounds in Tl2O3-KBr-trifluoroacetic acid system was carried out. New synthetic method for preparation of diphenylthallium salts from phenylhydrazine and thallium(III) oxide was developed.
研究了氧化organic(III)在各种有机反应中的氧化性能。在Tl 2 O 3 -KBr-三氟乙酸体系中进行有机化合物的氧化溴化。提出了由苯肼和氧化preparation制备二苯基th盐的新方法。
Synthesis, Protonation, and Reduction of Ruthenium–Peroxo Complexes with Pendent Nitrogen Bases
作者:Tristan A. Tronic、Werner Kaminsky、Michael K. Coggins、James M. Mayer
DOI:10.1021/ic3013987
日期:2012.10.15
pentamethylcyclopentadienyl ruthenium(II) complexes have been synthesized with cyclic (RPCH2NR′CH2)2 ligands, with the goal of using these [CpR′′Ru(PR2NR′2)]+ complexes for catalytic O2 reduction to H2O (R = t-butyl, phenyl; R′ = benzyl, phenyl; R″ = methyl, H). In each compound, the Ru is coordinated to the two phosphines, positioning the amines of the ligand in the secondcoordinationsphere where they may act
Reactions of thallium(I) carboxylates and iodine with alkenes
作者:Richard C. Cambie、Rodney C. Hayward、John L. Roberts、Peter S. Rutledge
DOI:10.1039/p19740001858
日期:——
Treatment of an alkene with a thallium(I) carboxylate and iodine gives the corresponding vic-iodocarboxylate in high yield. The reactions are regiospecific and in conjunction with solvolysis of the products, offer an alternative to the Prévost reaction. Differences in the behaviour of thallium(I) carboxylates and silver carboxylates towards alkenes in the presence of iodine are discussed.