Fe Doped Ga2O3 Nanomaterial Catalysed Green and Efficient One Pot Three Component Synthesis of Tetrahydrobenzo[b]pyran

Abstract

The present work reports the hydrothermal synthesis of Fe doped gallium oxide nanoparticles and its characterization by IR, XRD, SEM, and EDX techniques. The characterization of Fe doped gallium oxide nanomaterial reveals the 18.58 nm particle size with monoclinic phase. The catalytic activity of nanomaterial was efficiently assessed for one-pot domino Knoevenagel and Michael's addition of different aldehydes, dimedone, and malononitriles to give tetrahydrobenzo [b] pyran derivatives. The remarkable features associated with this green protocol are good to excellent product yields (60-94%), non-chromatographic purification of product, shorter reaction time, and easy work up. The reusability and non-toxic nature of this nanomaterial catalyst escalate the importance of this work.

Aluminized polyborate catalyzed efficient solvent-free synthesis of 1,8-dioxo-decahydroacridines via hantzsch condensation

“…Therefore there is still a need to develop a more efficient environmentally benign methods for the synthesis of 1,8-dioxodecahydroacridine derivatives. With this view and in continuation to our work in the development of new methods for synthesis of important heterocyclic compounds, [34][35][36] herein we report aluminized polyborate as mild solid acid catalyst for the green and efficient synthesis of 1,8-dioxo-decahydroacridines with good product yield under solvent free conditions.…”

One-Pot, Green Synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by ZnFe2O4 Nanoparticles an Efficient Nanocatalyst

“…In continuation to our ongoing research work [50][51][52], we use ZnFe 2 O 4 nanoparticles for the synthesis of 1H-pyrazolo [1,2-b] phthalazine-5,10-dione derivatives through a cyclocondensation reaction of aromatic aldehyde, malononitrile, phthalhydrazide under solvent free and re ux condition.…”