5743-97-5Relevant articles and documents
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Prokopetz
, (1940)
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The solvent determines the product in the hydrogenation of aromatic ketones using unligated RhCl3as catalyst precursor
Bartling, Stephan,Chakrabortty, Soumyadeep,De Vries, Johannes G.,Kamer, Paul C. J.,Lund, Henrik,Müller, Bernd H.,Rockstroh, Nils
, p. 7608 - 7616 (2021/12/13)
Alkyl cyclohexanes were synthesized in high selectivity via a combined hydrogenation/hydrodeoxygenation of aromatic ketones using ligand-free RhCl3 as pre-catalyst in trifluoroethanol as solvent. The true catalyst consists of rhodium nanoparticles (Rh NPs), generated in situ during the reaction. A range of conjugated as well as non-conjugated aromatic ketones were directly hydrodeoxygenated to the corresponding saturated cyclohexane derivatives at relatively mild conditions. The solvent was found to be the determining factor to switch the selectivity of the ketone hydrogenation. Cyclohexyl alkyl-alcohols were the products using water as a solvent.
Mesoporous zeolite-supported metal sulfide catalysts with high activities in the deep hydrogenation of phenanthrene
Fu, Wenqian,Zhang, Lei,Wu, Dongfang,Xiang, Mei,Zhuo, Qian,Huang, Kai,Tao, Zhongdong,Tang, Tiandi
, p. 423 - 433 (2015/09/02)
Developing highly active hydrogenation catalysts for deep aromatics saturation is of great importance in the production of ultraclean diesel fuel at a low cost. Toward this goal, we synthesized a mesoporous zeolite ZSM-5 (MZSM-5) that was cost-effective and available on a large scale, and used it as a support for the preparation of highly efficient metal sulfide catalysts (NiMoS/MZSM-5 and CoMoS/MZSM-5) for the deep hydrogenation of phenanthrene. The intrinsic activity of the NiMoS/MZSM-5 catalyst (7.4 × 10-4 mol kg-1 s-1) was much higher than that of the alumina-supported NiMo catalyst (NiMoS/γ-Al2O3, 4.8 × 10-4 mol kg-1 s-1), and the selectivity of the deep hydrogenation products over NiMoS/MZSM-5 (20.9%) was higher than for NiMoS/γ-Al2O3 (15.2%). Compared with γ-Al2O3, the relatively weak metal-support interaction could facilitate the formation of polymolybdates on MZSM-5. After sulfidation, the more multistacked MoS2 active phases were formed on the MZSM-5, enhancing the hydrogenation activity of the NiMoS/MZSM-5 catalyst.
Vapor pressure and liquid heat capacity of perhydroacenaphthylene and perhydrophenanthrene
Rohac, Vladislav,Censky, Miroslav,Zala, Diana,Ruzicka, Vlastimil,Ruzicka, Kvetoslav,Sporka, Karel,Aim, Karel
, p. 1205 - 1210 (2007/10/03)
Saturated vapor pressures and liquid heat capacities have been measured for liquid perhydroacenaphthylene and perhydrophenanthrene by comparative ebulliometry over an approximate pressure range from (8 to 100) kPa and by heat conduction calorimetry over a temperature range from about (305 to 335) K. The obtained results for vapor pressures and for heat capacities have been represented within experimental uncertainties by the Antoine and the Cox equations and by an empirical polynomial equation, respectively, and compared with the data available in the literature.
