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Palladium-catalyzed alkoxycarbonylation of allyl bromide to unsaturated esters in supercritical carbon dioxide (sc-CO2) was performed and compared with alkoxycarbonylation in organic solvents in this paper. Effects of the catalytic precursor, triphenyl phosphine ligand, base, pressure, and reaction temperature on the reaction yield and selectivity were mainly discussed. The results showed that sc-CO...
A continuous process for low-temperature methanol synthesis from CO/CO 2 /H 2 based on the promoting effect of alcohol solvent has been developed. 2-butanol, acting as a promoter, with the aid of Cu/ZnO solid catalyst, realized the high efficient synthesis of methanol with one-pass methanol yield of 47.0% and methanol selectivity of 98.9% at temperature as low as 443 K and 50 bar,...
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