Fei-Yang Zhao

TL;DR: In this paper, an environmentally friendly procedure was developed for the preparation of secondary or tertiary amines by one-pot reductive amination of carbonyl compounds using sodium borohydride in the presence of a magnetically recoverable sulfonic acid supported on hydroxyapatite-encapsulated-γ-Fe2O3 [γ]-@HAP-SO3H] at room temperature.

TL;DR: Dodecyl benzenesulfonic acid functionalized silica-coated magnetic nanoparticles (γ-Fe2O3@SiO2-DDBSA) were readily prepared and identified as an efficient catalyst for the synthesis of a library of spirooxindole-pyrimidine derivatives by three-component condensation reaction of barbituric acids, isatins and cyclohexane-1,3-diones.

TL;DR: In this article, an efficient approach for one-pot three-component reaction of aromatic amines, α, β-unsaturated aldehydes and β-keto esters using magnetic nanocrystalline Fe3O4 as a catalyst has been described.

TL;DR: In this article, the use of Fe3O4 nanoparticles as magnetically separable catalyst for the three-component, one-pot synthesis of 1,4-dihydropyridines is described.

TL;DR: In this article, a novel and environmentally friendly procedure for the title reaction (85 examples), which uses an easily prepared and reusable catalyst, is developed. But this procedure is not suitable for the case of high temperature.