Recent developments in the synthesis of polysubstituted pyridines via multicomponent reactions using nanocatalysts

FM Arlan, AP Marjani, R Javahershenas… - New Journal of …, 2021 - pubs.rsc.org
The synthesis of heterocyclic compounds containing a bioactive core including the pyridine
molecular framework with diverse pharmaceutical and biological activities is noteworthy …

[HTML][HTML] A review on multi-component green synthesis of N-containing heterocycles using mixed oxides as heterogeneous catalysts

SVHS Bhaskaruni, S Maddila, KK Gangu… - Arabian Journal of …, 2020 - Elsevier
The use of mixed oxides is a well-appreciated approach in the fields of material science and
synthesis, due to remarkable tunable surface properties such as acidic and basic …

DABA MNPs: A new and efficient magnetic bifunctional nanocatalyst for the green synthesis of biologically active pyrano [2, 3-c] pyrazole and benzylpyrazolyl …

S Karami, MG Dekamin, E Valiey… - New Journal of Chemistry, 2020 - pubs.rsc.org
In this work, a new core–shell magnetic silica nanocatalyst functionalized with 3, 4-
diaminobenzoic acid (Fe3O4@ SiO2@ PTS-DABA) was successfully prepared and …

Supported Metal Catalysts for the Synthesis of N-Heterocycles

LA Aronica, G Albano - Catalysts, 2022 - mdpi.com
Nitrogen-containing heterocycles are important scaffolds for a large number of compounds
with biological, pharmaceutical, industrial and optoelectronic applications. A wide range of …

Ligand Free One-Pot Synthesis of Pyrano[2,3-c]pyrazoles in Water Extract of Banana Peel (WEB): A Green Chemistry Approach

KD Dwivedi, B Borah, LR Chowhan - Frontiers in Chemistry, 2020 - frontiersin.org
Here, we have developed a novel, simple, efficient, and green protocol for one-pot synthesis
of pyrano [2, 3-c] pyrazole using arylidene malononitrile and pyrazolone in Water Extract of …

Green one-pot synthesis and in vitro antibacterial screening of pyrano[2,3-c]pyrazoles, 4H-chromenes and pyrazolo[1,5-a]pyrimidines using biocatalyzed pepsin

NH Metwally, TH Koraa, SMH Sanad - Synthetic Communications, 2022 - Taylor & Francis
In recent years, there has been a lot of interest in the modern organic synthesis using
enzymes as biocatalysts. A multicomponent reaction of 4-formylphenyl benzoates …

MnO2 on hydroxyapatite: A green heterogeneous catalyst and synthesis of pyran-carboxamide derivatives

SN Maddila, S Maddila, SVHS Bhaskaruni… - Inorganic Chemistry …, 2020 - Elsevier
Three different loadings of MnO 2 on hydroxyapatite (MnO 2/Hap) were synthesized and the
hydroxyapatite supported MnO 2 materials were characterized by several analytical …

A facile, efficient, and sustainable chitosan/CaHAp catalyst and one-pot synthesis of novel 2, 6-diamino-pyran-3, 5-dicarbonitriles

S Maddila, KK Gangu, SN Maddila… - Molecular diversity, 2017 - Springer
A simple and versatile one-pot three-component synthetic protocol is devised for
heterocycles, viz. 2, 6-diamino-4-substituted-4H-pyran-3, 5-dicarbonitrile derivatives, in short …

An Effective One-Pot Access to 2-Amino-4H-benzo[b]pyrans and 1,4-Dihydropyridines via γ-Cyclodextrin-Catalyzed Multi-Component Tandem Reactions in Deep …

X **ong, C Yi, X Liao, S Lai - Catalysis Letters, 2019 - Springer
A simple, highly efficient and green route for the synthesis of 2-amino-4 H-benzo [b] pyrans
and 1, 4-dihydropyridines has been developed by using γ-cyclodextrin (γ-CD) as catalyst in …

An eco-friendly approach for synthesis of novel substituted 4H-chromenes in aqueous ethanol under ultra-sonication with 94% atom economy

SN Maddila, S Maddila, M Khumalo… - Journal of Molecular …, 2019 - Elsevier
An operational approach for synthesis of eleven substituted 4H-chromene derivatives by
one-pot, three-component reaction of aromatic aldehyde, methyl cyanoacetate and cyclic …