نتایج جستجو برای: hydrogenation of benzene
تعداد نتایج: 21166979 فیلتر نتایج به سال:
Asymmetric hydrogenation ranks to the most intensively researched way of preparation of enantiomerically pure compounds which are demanded e.g. in pharmaceutical industry, cosmetics or agriculture. In the field of asymmetric transfer hydrogenations (ATH) of C=N and C=O double bonds Noyori’s ruthenium (II) complexes represent significant breakthrough. This catalytic system consists of three inte...
A fundamental kinetic model for the hydrogenation of toluene over platinum has been constructed, based on detailed first-principles density functional theory calculations for the hydrogenation of benzene over Pt(111). A Langmuir–Hinshelwood–Hougen–Watson (LHHW) kinetic model was derived based on an ab initio reaction path analysis [M. Saeys, M.-F. Reyniers, M. Neurock, G.B. Marin, J. Phys. Chem...
The quest for renewable and cleaner energy sources to meet the rapid population and economic growth is more urgent than ever before. Being the most abundant carbon source in the atmosphere of Earth, CO2 can be used as an inexpensive C1 building block in the synthesis of aromatic fuels for internal combustion engines. We designed a process capable of synthesizing benzene, toluene, xylenes and me...
hydrogenation of oils might be considered as the largest reaction in the edible oil industry. the reaction consists of the addition of hydrogen at the double bounds of fatty acids. although for some reasons this might be considered a desirable reaction but for some others it might create problems in the food and nutrition chain circle due to the formation of saturated and trans fatty acids. soy...
[formula: see text] A new chiral phosphine, (R,R)-1,2-bis[(R)-4,5-dihydro-3H-dinaphtho[2,1- c:1',2'-e]phosphepino]benzene [abbreviated as (R,R)-binaphane] was prepared on the basis of a practical route from a readily accessible enantiomerically pure binaphthanol. This ligand possesses both binaphthyl chirality and phospholane functionality. Excellent enantioselectivities (95-99.6% ee) have been...
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