Showing papers in "Journal of Molecular Catalysis in 1982"

TL;DR: In this paper, preliminary results on cobalt-containing heterogeneous catalysts for the selective synthesis of C1-C6 alcohols from carbon monoxide and hydrogen are presented.

TL;DR: In this article, ahodium/phosphine-catalyzed hydroformylation was studied using 1,1′-bis(diphenylphosphino)ferrocene and several derivatives containing substituents on the phenyl groups (p -Cl, m -F, and p -CF 3 ).

TL;DR: In this article, the main thrust of a review is to develop several useful criteria for identifying homogeneously catalyzed reactions as being cluster-catalyzed, including catalytic concentration studies where the turnover frequency increases with increasing catalyst concentration are indicative of cluster catalysis.

TL;DR: In this paper, a brief description of the commercial Sasol process is given, two types of reactors using two different iron-based catalysts are used, the one producing predominantly gasoline and the other waxes.

TL;DR: The conversion of methanol to hydrocarbons with zeolite ZSM-5 as catalyst provides a novel route to gasoline as well as to olefins and aromatics as chemical raw materials as discussed by the authors.

TL;DR: In this article, the formation of hydrocarbons in the reactions of CO + H2 and CO2+H2 was studied over rhodium catalysts supported on Nb2O2, ZrO 2, Al2O3, SiO2 and MgO.

TL;DR: In this article, the reactions between methanol and carbon monoxide or synthesis gas in the presence of cobalt, rhodium and iridium catalysts are reviewed with reference to the pathways at the metal center.

TL;DR: In this paper, the Fischer-Tropsch reaction has been used to synthesize catalysts for silica aerogel-supported iron oxide (Fe2O3), which exhibits a catalytic activity about 300 times higher than the activity of the conventional fused iron reduced catalyst, and does not deactivate by carburization or by deposition of inactive carbon.

TL;DR: In this article, it was shown that the amount of reversible species given by H 2, CO and the mixture H 2 + CO (formyl species) is dependent on the ZnO activation temperature T act, 2 variation similar to that observed for linear CO 2 species.

TL;DR: W(CCMe3)-(NPr12)3 is as effective a catalyst as WCMe3-(OCMe3)3 as discussed by the authors, and it has been used successfully to metathesize EtCCCH2NMe2 and to cross-methesize Me3SiOCH2CCCH 2OSiMe3 with 3-hexyne.

TL;DR: In this article, a systematic study has been carried out in order to relate metathesis activity and structure of alumina-supported molybdenum and tungsten oxides.

TL;DR: In this paper, the authors compared the hydrogenation of CO2 and CO on different Cu/Zn contact masses in flow and static reactors and found that CO2 is consistently reduced to methanol at lower temperatures.

TL;DR: The Diels-Alder reaction product of cyclopentadiene and maleic anhydride (CPD-MA) exists in both endo and exo -isomeric forms as mentioned in this paper.

TL;DR: The first example of a catalyst for the heterogeneous metathesis of functionalized olefins is Re 2 O 7 /Al 2 O 3, promoted by a small amount of an alkyltin compound as mentioned in this paper.

TL;DR: In this article, a homogeneous metathesis of disbustituted alkynes is performed catalytically on new O 2 Mo(acac) 2 AlEt 3 PhOH combinations.

TL;DR: A wide variety of specialty chemicals are now available from technology based on the olefin metathesis reaction, which allows the conversion of simple, relatively inexpensive olefins into specialty, high-purity olefs which are useful intermediates in the fragrance, agricultural, and many other specialty chemical industries as mentioned in this paper.

TL;DR: The trinuclear cluster anion [HRu 3 (CO) 11 ] − was found to catalyze hydroformylation, hydrogenation, silacarbonylation and hydrosilylation reactions.

TL;DR: In this article, Ru(PPh3)3Cl2 reacts with primary amines to give the complexes Ru(PPH3)2(chel)Cl2, (V) - (VIII).

TL;DR: In this article, Calderon's catalyst was used as a probe of the ability of about 150 unsaturated compounds to participate in the olefin metathesis reaction, and significantly decreased molecular weight of the polymers was considered positive evidence of metathetic activity.

TL;DR: In this article, the role of the added α,ω-bis(diphenylphosphino)alkane is to suppress the formation of a metastable acyl rhodium complex in which a six-membered ring is formed by coordination of the oxygen atom in a carbonyl or hydroxy group of the substrate.

TL;DR: The cobalt(II) TSPC can be rapidly regenerated by exposure of the reduced form to air or treatment with an aqueous solution of an iron(III) salt as mentioned in this paper.

TL;DR: Ru3(CO)12 was supported on NaY, SiO2, and Al2O3 by a vapor impregnation technique and the IR spectra of the supported carbonyl were determined and found to depend greatly on the support as mentioned in this paper.

TL;DR: In this paper, it was shown that O 2 is adsorbed in the O −1 2 superoxide form and that diluted MgOCoO solid solutions are interesting examples of heterogeneous oxygen carriers and activators.

TL;DR: In this article, a ternary complex of copper, enamine, and molecular oxygen was proposed for enamine oxygenation, and it was shown that copper(II) acts as a one-electron oxidizing agent toward enamines.

TL;DR: In the presence of catalyseur contenant la diphosphine chirale (+)- trans-bis(methylenephosphino)-1,2-cyclobutane 4, le neral est hydrogene en (+)-citronellal as mentioned in this paper.

TL;DR: In this article, it is suggested that formation constant (K t ) values of the peroxometal species and kinetic behaviour in catalytic oxidation permit distinction between these two significantly different modes of binding of peroxide to the metal, and that an entirely different situation arises in the interaction of alkyl hydroperoxides or hydrogen peroxide with the metal center.

TL;DR: In this paper, an immobilized macromolecular copper catalyst was prepared by radical graft copolymerization of styrene and 4-vinylpyridine on nonporous silica spheres and by subsequent complex formation of copper(II) chloride with these grafted macromolescular pyridine ligands.