Showing papers in "Journal of Organometallic Chemistry in 1983"

TL;DR: In this article, it was shown that carbon-hydrogen bonds may act as ligands to transition metal centers forming covalent CH⇀M systems in which the H group donates two electrons to the metal.

TL;DR: In this paper, the 13C and 119Sn NMR spectra of four and five-coordinate triphenyltin(IV) compounds have been examined and the chemical shifts δ(119Sn) and the coupling constants 1J(119sn-13C) depend markedly on the coordination number of the tin atom and on the geometry of the coordination sphere.

TL;DR: In this article, the steric and electronic properties of these phosphite ligands and their ability to stabilize unsaturated rhodium species were attributed to their stericity and electron-withdrawing properties.

TL;DR: In this paper, the authors describe routes to functionalized organosilanes and the useful behavior of such silanes, with emphasis placed on the organic moiety, and provide coverage of organo-icon chemistry.

TL;DR: In this article, the palladium-catalyzed cross-coupling of organic halides with organometallic compounds of tin, mercury and copper is discussed, and it is shownn that the “ligandless” palladium complexes RPdXL 2 (L = solvent), in which solvent molecules act as weak donating ligands, are the most active catalysts for reactions of organotin compounds.

TL;DR: In this paper, the synthesis of over sixty known and new derivatives of Ru3(CO)12 and H4Ru4nLn by substitution reactions initiated by sodium diphenylketyl is described.

TL;DR: In this article, the reaction between aldehydes and allylic or benzylic halides in the presence of samarium diiodide was studied and the reactivities of various nitrogen functional groups (imine, oxime, nitro, azo, cyano) towards SmI2 were also examined.

TL;DR: In this paper, the 13 C and 119 Sn NMR of CDCl 3 solutions of aliphatic and aromatic triphenyltin(IV) carboxylates of type Ph 3 SnOCOR (Ph = phenyl; R = H, Ch 3, C 2 H 5, C(CH 3 ) 3, CF 3, CH 2 Cl, CHCl 2, CCl 3, CH 2 Br and CHBr 2 ) were recorded.

TL;DR: Fe3Te2(CO)9 is shown to be a useful precursor to a variety of heterometallic carbonyl clusters in reactions which appear to proceed via the intermediacy of Fe2(Te2)(CO)6.

TL;DR: An inexpensive three-step synthesis for large-scale preparation of 1,2,3,4,5-pentamethylcyclopentadiene is reported in this paper, where an improvement of Burger's route involving 2,3.4,6-tetrahydro-2, 3, 4, 6 -tetramethyl-γ-pyrone and 2,4.5,tetramerethyl-cyclopent-2-enone raised the overall yield to about 34% of the desired compound.

TL;DR: In this paper, the nickel-induced coupling of CO 2 with ethylene or with mono- or di-substituted alkenes has been investigated and the regioselectivity of this reaction has been determined.

TL;DR: The palladium-catalysed arylation of alkenes with aryl bromides or iodides was shown to proceed in high yields at very low palladium concentration when carried out in a suitable strongly polar solvent with a carboxylate anion as base.

TL;DR: In this article, it was shown that 1,3-bis(diphenylphosphinomethyl)benzene (PCHP) readily undergoes a cyclometallation reaction with nickel(II), palladium(II, and platinum(II) species giving products of the type [MX(PCP)].

TL;DR: In this article, the X-ray crystal structure of MoO(O2)Cl(Pic)(HMPT) revealed a bipyramidal pentagonal surounding with a rather short OO distance (1.41 A).

TL;DR: In this article, the selective synthesis of the δ-lactone 2-ethyl-2,4-heptadien-4-olide by the palladium-catalyzed reaction of carbon dioxide and butadiene is described.

TL;DR: In this article, a discussion is given of the formation of complexes of the reaction of 1,4-di-t-butyl-1, 4-diaza-1-3-butadiene t-Bu-NCC-N-T-Bu (t-bu-DAB) or of t-NCH-2-C 5 H 4 N (tBu-Pyca) with Et 2 Zn or Et 3 Al.

TL;DR: In this paper, it was shown that diphenylacetylene and phenylisocyanate are intermediates in the nickel-catalysed 2-pyridone synthesis.

TL;DR: In this paper, Titanocene and zirconocene derivatives with an interannular tetramethylethylene bridge can be made by reductive coupling of 6,6-dimethylfulvene with sodium amalgam, sodium anthracenide, or magnesium metal/CCl4 as reducing agents and subsequent reaction of the anionic tetramethyldicyclopentadienylethane product with TiCl3 or ZrCl4 in THF.

TL;DR: In the absence of solvent, the redistribution of 2 1 and 1 2 molar mixtures of Ph 3 Sb and SbX 3, where X = Cl or Br, is rapid giving quantitative yields of Ph 2 Sb X and PhSbX 2, respectively as mentioned in this paper.

TL;DR: In this paper, five new solvated organolanthanide complexes containing Ln-C σ-bonds were synthesized by the reaction of appropriate aryllithium derivatives with (η5-C5H5)2LnCl or (∆5-CH3C5h4)2lnCl in low temperature (−78°C).

TL;DR: In this paper, a catalytic reduction-oxidation cycle involving a Ni or Co complex bearing an organotellurium moiety (RTe; R  alkenyl, aryl, and alkyl) is proposed for the reaction.

TL;DR: In this article, the synthesis of various aromatic boron compounds with nitrogen-containing substituents in the ortho-position, including a chiral boroxin prepared from (S)-N,N dimethyl-1-phenylethylamine, was discussed.

TL;DR: Trimethylsilyl N N-dimethyl carbamate can be used for silylation of alcohols,phenols, and carboxylic acids as discussed by the authors.

TL;DR: Methyl propionate may be obtained by the homogeneous ruthenium catalysed interaction of ethylene and methyl formate as discussed by the authors, which probably involves an initial fragmentation of the formate to free or ligand CO.

TL;DR: In this paper, the behavior of the [Ru2(CO)4(CH3COO)2]n/tributylphosphine/acetic acid system has been investigated as a function of reaction conditions and molar ratios of reactants.

TL;DR: In this article, the crystal and molecular structures of dimeric cyclopalladated acetato(OAc)-bridged complexes of a 2-arylpyridine (1 ) and a 2, 6-diary pyridine ligand have been determined by X-ray diffraction.

TL;DR: The structure of 3-ptrifluormethylphenyl-4-methoxy-2-p-tolyl-1-naphthol is determined by X-ray spectroscopy as mentioned in this paper.

TL;DR: In this paper, two ruthenium complexes, HRu3(CO)11− and Ru( CO)3I3−, are shown to be essential for optimum activity during catalysis.

TL;DR: In this article, the P7(SiMe3)-3-n(SnMe3)n with (n = 1, 2 or 3) depending on the molar ratio.