In the chemistry world, the year 1891 was considered as milestone year for the discovery of
new type of heterocyclic compounds by Pietro Biginelli. The Biginelli protocol provides 3, 4 …

The synthesis of dihydropyridines, valuable molecules with diverse therapeutic properties,
using eco-friendly heterogeneous catalysts as a green alternative received significant …

1, 4-Dihydropyridine (1, 4-DHP), a privileged heterocyclic scaffold, has been extensively
utilized in various biological and therapeutic applications. In this review article, we …

Regionally available bentonite was modified by using heteropolyacid 12‐tungstosilicic acid
H4 [W12SiO40](TSA). The prepared 10–30% TSA/bent catalysts were characterized by …

In this work a new core–shell nanocatalyst, Fe3O4@ SiO2/Schiff base of Ni (II),(Fe3O4@
SiO2/SB (Ni)), was synthesized and characterized. The Schiff base immobilized on …

Saponin, as a green and available phytochemical, was immobilized on the surface of
magnetite nanoparticles then doped with Cu ions (Fe3O4@ Sap/Cu (II)) and used as an …

Abstract In this study, NiO, CuO, and Co 2 O 3 NPs with noteworthy antibacterial activity
have been efficiently synthesized by a thermal decomposition of polysalicylaldehyde Schiff …

Abstract Heteropolyacid 12-tungstophosphoric acid H 3 [PW 12 O 40](TPA) immobilized
over natural bentonite (bent) using the impregnation method. Prepared catalyst were well …

The aim of the present research was to develop a one-pot, three-component method for the
synthesis of some 3, 4-dihydro pyrimidine-2-(1H)-one (DHPM) derivatives using aldehydes …

Dydropyridines are important pyridine-based organic scaffolds which have vast
pharmaceutical and synthetic applications. The Hantzsch dihydropyridine synthesis is the …