Methanol carbonylation on Rh and Ir organometallic complexes with iodide co-catalysts is currently used to produce acetic acid. Catalyst cost and recovery, as well as the toxic and corrosive nature of iodide compounds, has led a search for alternate routes, such as zeolite acid catalysts for methanol or dimethyl ether carbonylation and dispersed metal oxide domains for the oxidation of ethane, ...

Decatungstodivanadogermanic acid (H6GeW10V2O40.22H2O) was used as a green heterogeneous catalyst for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones from one-pot three-component cyclocondensation reaction of a β-ketoester, an aldehyde and urea/thiourea under solvent-free conditions is reported. This method provides an efficient and much improved modification of the original Biginelli reaction...

Decatungstodivanadogermanic acid (H6GeW10V2O40.22H2O) was used as a green heterogeneous catalyst for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones from one-pot three-component cyclocondensation reaction of a β-ketoester, an aldehyde and urea/thiourea under solvent-free conditions is reported. This method provides an efficient and much improved modification of the original Biginelli reaction...

Catalytic reactions often require several types of sites with distinct functions, and the relative abundance of these sites influences the rate and selectivity of desired reactions. Heteropolyacid clusters with Keggin structures, which contain acid and redox functions, 2] have recently emerged as interesting catalysts for organic reactions involving bifunctional pathways. We recently discovered...