3-methyl-1-sulfonic acid imidazolium tetrachloroferrate {[Msim]FeCl4} as an efficient sulfur catalyst was prepared and applied, as an efficient catalyst, for the cross-aldol condensation reaction between cycloalkanones and arylaldehydes to give α,αʹ- bis(arylidene)cycloalkanones in high yields and short reaction times at 75 °C under solvent-free conditions. 3-methyl-1-sulfonic acid imidazolium...

Sulfonic aromatic compounds are widely used in the textile industry for the synthesis of azo dyes. The presence of the sulfonic group endows these compounds with high water-solubility and resistance to biological treatment. The present work analysed the efficacy of oxidation with ozone in the treatment of waters containing naphthalene-1-sulfonic acid, naphthalene-1,5-disulfonic acid and naphtha...

Ruthenium Nanoparticles In article number 2206806 by Alexis Bordet, Walter Leitner, and co-workers, the aqueous phase hydrogenation of CO2 to formate using Ru nanoparticles immobilized on supported ionic liquid phases ([email protected]) is reported. A synergistic enhancement catalyst activity productivity observed for sulfonic acid-functionalized [email protected](SO3H-X) materials, rationaliz...

Sulfonic acid-functionalized mesostructured silicas have been evaluated in the solvent-free aldol dimerization of biomass-derived levulinic acid into bio-jet fuel precursors. These compounds produce branched alkanes a subsequent hydrodeoxygenation process, with suitable properties for being renewable alternative to conventional fossil aviation fuels. The combination activity and selectivity tow...