M. Lakshmi Kantam

TL;DR: Gold nanoparticles deposited on nanocrystalline magnesium oxide is a very efficient catalyst for the reduction of nitro-arenes in aqueous medium at room temperature as discussed by the authors, and the reaction kinetics of reduction of 4-nitrophenol to 4-aminophenol has been studied by UV-visible spectrophotometry, and its apparent rate constant has been determined and compared with those of other supported gold catalysts.

TL;DR: Nanocrystalline copper(II) oxide efficiently catalyzed the conjugate addition of aliphatic amines to α,β-unsaturated compounds to produce β-amino compounds with excellent yields under mild reaction conditions.

TL;DR: NiO in association with aluminum oxide has been identified by temperature-programmed reduction as the active species in the Ni-Al hydrotalcite catalyst that oxidizes α-ketols as well as benzylic and allylic alcohols to their corresponding carbonyl compounds in oxygen in quantitative yields under mild reaction conditions as mentioned in this paper.

TL;DR: Nanocrystalline ZnO is an effective heterogeneous catalyst for the [2+3]-cycloaddition of sodium azide with nitriles to afford 5-substituted 1H-tetrazoles in good yields.

TL;DR: Aldol and Knoevenagel condensations were performed with suitably activated Mg-Al hydrotalcite as catalyst in quantitative yields in the liquid phase under mild reaction conditions at a faster rate for the first time.