Equation (I) shows that triphenylphosphine is an inhibitor for the hydrogenation reaction. Infrared measurements indicate that PPh 3 does not retard the hydrogen-deuterium exchange between the catalyst and the gas phase. The conclusion is that PPh 3 inhibits the addition of cyclohexene by displacing ...
The reaction of the benzoyl acetate derivative, an aromatic ketone, gave almost racemic product. This problem was circumvented by using a cationic iridium complex in acetic acid under lower pressure of H2 at room temperature (r.t.) (equation 29).72 Table 17. Stereoselective hydrogenation of α...
Then, we evaluated the reusability of Mn-6 as well as Lys in FA dehydrogenation (Fig.3b). After each run, a new batch of FA was reloaded into the reaction mixture (first to fifth runs: 5.0 mmol FA and sixth to tenth runs: 20.0 mmol FA). Following this procedure, Mn-6 cataly...
The method of initial reaction rate constants gives rate constant and reaction order in the hydrogenation reaction of NBR latex calculated from the hydrogenation kinetic data. Based on these kinetic values, the kinetic equation of hydrogenation of NBR latex in this catalytic system at the temperature...
(Chemical Equation Presented) Much faster, more enantioselective, and more-productive catalysis was attained in the asymmetric transfer hydrogenation of aromatic ketones with the Noyori-Ikariya Ru-Ts-dpen catalyst in water under slightly basic conditions (see scheme). At low pH values, the reaction ...
Investigation of the Influence of Process Conditions on the Catalytic Performance of Co–Ce/SiO2 Catalyst for CO Hydrogenation Reaction using RSM MethodInvestigation of the Influence of Process Conditions on the Catalytic Performance of Co–Ce/SiO2 Catalyst for CO Hydrogenation Reaction using RSM Method...
We further show that, out of 33 TMD monolayers, 2H-TiS2 has impressive catalytic ability comparable to Pt in hydrogen evolution reaction in a wide range of hydrogen coverages. Our findings would shed the light on the multi-functional applications of TMDs. Extensive attention has been drawn to...
Discover Chemical Engineering Research Optimal reaction pathways of carbon dioxide hydrogenation using P‑graph attainable region technique (PART) Viggy Wee Gee Tan1 · Yiann Sitoh1 · Dominic Chwan Yee Foo1 · John Frederick D. Tapia2 · Raymond R. Tan2...
The enabling feature of an ePMR is that a thin palladium membrane is simultaneously used as (1) a cathode to electrocatalytically reduce protons to reactive hydrogen, (2) a hydrogen-selective membrane to transport reactive hydrogen to the reaction site, and (3) a chemical hydrogenation catalyst....
The amount of water in the structure of the catalyst and the solvents were effective on the efficiency of the hydrogenation reaction and increase the yield. Therefore, increasing the water, as compared to ethanol, led to an increase in both the activity and selectivity of p-chloronitrobenzene ...