JOURNAL OF MOLECULAR CATALYSIS VOL. 79 NOS. 1-3, FEBRUARY 15, 1993 Contents Articles Chemical and Metal Complex Catalysis Novel phosphine-palladium complex-catalysed regioselective allylation of a Grignard reagent Y. Takuma and N. Imaki Influence of temperature and phenol on the polymerization of phenylacetylene catalyzed by Mo(CO), H.C.M. Vosloo and J.A.K. Du Plessis Baeyer-Villiger oxidation of ketones by peroxomolybdenum complexes: a revisit S. Campestrini and F. Di Furia UV-Vis and ESR spectroscopic studies of the adsorption of arenes on the heteropoly acid H3sPW.049 M.N. Timofeeva, A.V. Demidov, A.A. Davydov and I.V. Kozhevnikov Thermo- and photocatalytic dehydrogenation of 2-propanol with [RuL(SnCl,);]*~ (L=Cl- or SnClz ) complexes T. Matsubara, Y. Saito, T. Yamakawa and S. Shinoda Ruthenium-catalyzed synthesis of 1-substituted-3-hydroxyperhydroazepines Y.Z. Youn, D.Y. Lee, B.W. Woo, J.G. Shim, S.A. Chae and S.C. Shim Effect of temperature on photoassisted reduction of CO, with preadsorbed ammonia on silica-supported iron K. Ogura, T. Koreishi, J. Yano and K. Mine Stereochemistry in cross-coupling reaction of crotyl alcohol derivatives and arylmagnesium bromides on trans-bis-1S,2S- and trans-bis-1R,2R- (diphenylphosphino )cyclopentanenickel dibromide V.A. Pavlov, E.A. Mistryukov, H. Duddeck, M.G. Vinogradov and G. Snatzke Cocyclotrimerization of hex-1-yne and acetonitrile with CpCoCOD as catalyst J.S. Viljoen and J.A.K. Du Plessis Ruthenium (II)- catalyzed oxidation of alcohols by persulfate M. Bressan, L. Forti, F. Ghelfi and A. Morvillo Theoretical study of regioselectivity in propylene insertion into Ti-methyl bonds of methyltitanium chlorides: analysis by paired interacting orbitals A. Shiga, H. Kawamura-Kuribayashi and T. Sasaki Selective hydrogenation of a,f-unsaturated aldehydes catalyzed by supported aqueous- phase catalysts and supported homogeneous catalysts E. Fache, C. Mercier, N. Pagnier, B. Despeyroux and P. Panster Electrochemical regeneration of nicotinamide cofactor using a polypyrrole rhodium bis- terpyridine modified electrode M. Beley and J.-P. Collin Homogeneous catalyses of mixed-valent octanuclear platinum complexes in photochemical hydrogen production from water K. Sakai, Y. Kizaki, T. Tsubomura and K. Matsumoto Anchored manganese and ruthenium porphyrins as catalysts in the decomposition of cyclohexyl! hydroperoxide C.B. Hansen, G.J. Hoogers and W. Drenth Heterogeneous Catalysis Decomposition and reducibility of rhodium clay catalyst precursors J. Herrero, J. Fernandez-Ferreras, C. Blanco and I. Benito Synthesis of acrolein by vapor phase condensation of formaldehyde and acetaldehyde over oxides loaded zeolites E. Dumitriu, V. Hulea, N. Bilba, G. Carja and A. Azzouz Interaction of carbon monoxide with supported nickel catalysts J. Zielinski Preparation and Fischer-Tropsch reaction of highly-reduced cobalt clusters in cobalt- exchanged zeolite J.S. Chung, H.G. Yun, D.J. Koh and Y.G. Kim Dehydrogenation of ethanol and CO,-H, conversion on new coprecipitated Cu/Cr-Al catalysts N. Kanoun, M.P. Astier and G.M. Pajonk Electronic effect of substituents on the hydrodesulfurization of ring substituted benzenethiols K. Konuma, S. Takase, N. Kameda and K. Itabashi Catalysis by the Rh/B system: Part 2. Highly regioselective vapour phase hydroformylation of propene at atmospheric pressure on Rh/B on silica and silica- alumina M. Lenarda, R. Ganzerla, L. Storaro and R. Zanoni Influence of support and metallic precursor on the hydrogenation of p-chloronitrobenzene over supported platinum catalysts B. Coq, A. Tijani, R. Dutartre and F. Figuéras Effect of cation reducibility on oxidative dehydrogenation of butane on orthovanadates O.S. Owen and H.H. Kung Decomposition of 1-octanol on the spinel system Ga, _,Fe,CuMnO, G.R. Dube and V.S. Darshane Rearrangement reactions of 1,2-alkene oxides over zeolites: improved selectivity in aldehydes by the use of silanated offretites D. Brunel, M. Chamoumi, P. Geneste and P. Moreau Relationship between solvent effects and catalyst activation method in a clay-catalysed Diels-Alder reaction C. Cativiela, J.M. Fraile, J.I. Garcia, J.A. Mayoral, E. Pires and F. Figuéras Elucidation of the mechanism of elimination reactions with deuterium-labelled compounds R. Bauer and K. Thomke Infrared study of the formation of Rh* (CO), over RhCl;/SiO, and its reactivity with NO S.S.C. Chuang and S. Debnath Differing characteristics of Cu and ZnO in dehydrogenation of ethanol: a deuterium exchange study M.-J. Chung, S.-H. Han, K.-Y. Park and S.-K. Ihm Biochemical Catalysis Kinetic characterization of a model for zymogen activation: an experimental design and kinetic data analysis A. Vazquez, R. Varén, J. Tudela and F. Garcia-Canovas Kinetics and mechanism of the heptamolybdate ion-catalyzed C (2) epimerization of D-xylose and D-lyxose , S. Kolari¢é, M. Gelo, M. Sankovié and V. Sunjié Author Index Subject Index The scopes of the Elsevier publications Applied Catalysis and Journal of Molecular Catalysis being complementary, the Editors wish to help the authors submit their papers to the appropri- ate place. The guidelines are as follows. Papers dealing with the following subjects should be directed to Journal of Molecular Catalysis: catalytic mechanism of reactions at the molecular level, in homogeneous, enzymatic and heter- ogeneous reactions; mechanistic studies on model heterogeneous catalysts; preparation of cat- alysts, when dealing with the intervention of organic or organometallic reactions (e.g. insolubil- ized organometallic complexes and enzymes), new reactions in homogeneous and enzymatic catalysis, even if the mechanism is not elucidated. Papers dealing with the topics listed below should be directed to Applied Catalysis: reactions of industrial interest; deactivation; chemical engineering; preparation of heterogeneous cata- lysts, when dealing with solid state chemistry and colloidal chemistry; new heterogeneously catalysed reactions of potential interest for applications. In the case of papers at the borderline, the Editors of Journal of Molecular Catalysis and Applied Catalysis, in the frame of the coordination between the journals, might be led to suggest to the authors to which journal they could preferably submit their paper.