HPA-dendrimer functionalized magnetic nanoparticles (Fe3O4@D-NH2-HPA) as a novel inorganic-organic hybrid and recyclable catalyst for the one-pot synthesis of highly substituted pyran derivatives
This paper reports the preparation, characterization and catalytic application of a novel, magnetically separable catalyst consisting of tungstic acid supported on silica coated magnetic nanoparticles.
Al-SBA-15-TPI/H6P2W18O62 is introduced as an effective catalyst for the one-pot synthesis of indazolo-phthalazine-triones. The catalyst could be easily separated without noticeable reduction in activity.
ZnO nanoparticles as a worthwhile and recyclable catalyst have been used for the one-pot synthesis of 1,8-dioxo-decahydroacridines and 1,8-dioxooctahydro-xanthenes via multi-component reactions under solvent-free conditions. The presented method is mild, environmentally friendly, inexpensive and highly effective to give the products in good to excellent yields.
Synthesis, characterization and utilization of the l-proline N-sulfonic acid-functionalized magnetic nanoparticles as a novel magnetically reusable acid catalyst for the synthesis of 3,4-dihydropyrimidine-2-[1H]thione derivatives is reported.
A Ag@TiO2 nanocomposite/water as a novel catalytic system is used for the synthesis of benzoxazole derivatives. A shorter reaction time along with high product yield, catalyst stability and recyclability are the merits of this novel protocol.
ZnO Nanoparticles: A Highly Effective and Readily Recyclable Catalyst for the One-Pot Synthesis of 1,8-dioxo-decahydroacridine and 1,8-dioxooctahydro-xanthene Derivatives