Influence of Ru precursor, support and solvent in the hydrogenation of citral over ruthenium catalysts
作者： G. Neri , L. Mercadante , A. Donato , A. M. Visco , S. Galvagno
DOI: 10.1007/BF00807117
关键词: Double bond 、 Citronellal 、 Ruthenium 、 Citral 、 Chemistry 、 Noyori asymmetric hydrogenation 、 Solvent effects 、 Catalysis 、 Organic chemistry 、 Cyclohexane
摘要: A series of ruthenium supported catalysts were prepared and investigated in the liquid-phase hydrogenation citral. The mechanism reaction was found to be dependent on Ru precursor, support solvent used. On sample from RuCl3 acetals citronellal formed with subsequent isolated C=C double bond. samples obtained precursors which do not contain chloride ions, main product. Hydrogenation bond negligible. Using cyclohexane as solvent, a large amount isopulegol also obtained. results citral have been correlated presence acid sites incompletely reduced favour cyclization formation citronellal. basis reported results, scheme for over is proposed.
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sci-hub.se 参考文章(9)
PN. RYLANDER, Catalytic hydrogenation in organic syntheses ,(2012)
William H. Jones, Catalysis in organic syntheses Academic Press. ,(1980)
S. Galvagno, C. Milone, A. Donato, G. Neri, R. Pietropaolo, Hydrogenation of citral over Ru-Sn/C Catalysis Letters. ,vol. 17, pp. 55- 61 ,(1993) , 10.1007/BF00763927
B. Coq, P.S. Kumbhar, C. Moreau, P. Moreau, M.G. Warawdekar, Liquid phase hydrogenation of cinnamaldehyde over supported ruthenium catalysts: Influence of particle size, bimetallics and nature of support Journal of Molecular Catalysis. ,vol. 85, pp. 215- 228 ,(1993) , 10.1016/0304-5102(93)80103-2
Bernard Coq, Eleanor Crabb, Mayukh Warawdekar, Geoffrey C. Bond, Joop C. Slaa, Signorino Galvagno, Lucina Mercadante, Joaquin Garcia Ruiz, Maria Conception Sanchez Sierra, Catalytic and structural properties of ruthenium bimetallic catalysts: Preparation and characterization Journal of Molecular Catalysis. ,vol. 92, pp. 107- 121 ,(1994) , 10.1016/0304-5102(94)85006-2
A.A. Wismeijer, A.P.G. Kieboom, H. Van Bekkum, Selective hydrogenation of citronellal to citronellol over Ru/TiO2 as compared to Ru/SiO2 Applied Catalysis. ,vol. 25, pp. 181- 189 ,(1986) , 10.1016/S0166-9834(00)81235-X
S. Galvagno, C. Milone, A. Donate, G. Neri, R. Pietropaolo, Influence of metal particle size in the hydrogenation of citral over Ru/C Catalysis Letters. ,vol. 18, pp. 349- 355 ,(1993) , 10.1007/BF00765281
M VANNICE, Metal-support effects on the intramolecular selectivity of crotonaldehyde hydrogenation over platinum Journal of Catalysis. ,vol. 115, pp. 65- 78 ,(1989) , 10.1016/0021-9517(89)90007-9
А. М. Пак, С. Р. Конуспаев, Д. В. Сокольский, Л. Д. Розманова, О механизме гидрирования цитраля в цитронеллол на металлах 8 группы Reaction Kinetics and Catalysis Letters. ,vol. 18, pp. 311- 316 ,(1981) , 10.1007/BF02065613