Solvent-free mechanochemical multicomponent preparation of 4H-pyrans catalyzed by Cu2(NH2-BDC)2(DABCO) metal-organic framework [PDF]
Heliyon, 2023 4H-pyrans have been prepared through a mechanochemical multicomponent reaction (MCR) of different aldehydes, malononitrile, and various 1,3-dicarbonyl compounds, catalyzed by an amine-functionalized metal-organic framework (MOF) Cu2(NH2-BDC)2(DABCO) as a
Zahra Akhlaghi +4 more
doaj +3 more sources
Ternary Hydrotalcites in the Multicomponent Synthesis of 4H-Pyrans [PDF]
Catalysts, 2020 Lamellar double hydroxides (LDH) with double divalent cations were synthesized by the co-precipitation method and studied in the multicomponent synthesis of 4H-pyrans.
JOSÉ J Martinez +2 more
exaly +7 more sources
Intercepted-Knoevenagel condensation for the synthesis of unsymmetrical fused-tricyclic 4H-pyrans. [PDF]
Tetrahedron, 2019 4H-Pyrans (4H-Pys) and 1,4-dihydropyridines (1,4-DHPs) are important classes of heterocyclic scaffolds in medicinal chemistry. Herein, an indium(III)-catalyzed one-pot domino reaction for the synthesis of highly functionalized 4H-Pys, and a model of 1,4 ...
Shearer C +6 more
europepmc +5 more sources
Ultrasound-assisted multicomponent synthesis of 4H-pyrans in water and DNA binding studies. [PDF]
Sci Rep, 2020 A simple approach to synthesize new highly substituted 4H-pyran derivatives is described. Efficient Et3N acts as a readily accessible catalyst of this process performed in pure water and with only a 20 mol% of catalyst loading.
Auria-Luna F +4 more
europepmc +2 more sources
Silver nanoparticles-decorated Preyssler functionalized cellulose biocomposite as a novel and efficient catalyst for the synthesis of 2-amino-4H-pyrans and spirochromenes. [PDF]
Sci Rep, 2020 Silver nanoparticles-decorated Preyssler functionalized cellulose biocomposite (PC/AgNPs) was prepared and fully characterized by FTIR, UV–vis, SEM, and TEM techniques.
Saneinezhad S +4 more
europepmc +2 more sources
Synthesis of Fe3O4@SiO2@Pr-NH2@DAP as a magnetic recyclable nano-catalyst for efficient synthesis of pyranothiazolopyrimidines and 4H-pyrans under solvent-free condition [PDF]
Scientific Reports, 2023 In this research, we describe the synthesis of silica-coated nano-Fe3O4 particles, which were successfully modified by diaminopyrimidine, and their physicochemical properties were characterized using FT-IR, XRD, TEM, FE-SEM, EDX, EDX-mapping, and TGA ...
Maryam Danehchin, Abbas Ali Esmaeili
doaj +2 more sources
L-glutamine-functionalized magnetic polystyrene for highly efficient synthesis of 2-amino-4H-pyrans [PDF]
Discover NanoIn this study, we reported the synthesis and characterization of a novel magnetic polystyrene nanocatalyst functionalized with L-glutamine (L-Glu-MPS) and evaluation of its catalytic performance in a multicomponent organic reaction for the preparation of
Fatemeh Zahra Hajian +5 more
doaj +2 more sources
Ceria-Vanadia/Silica-Catalyzed Cascade for C-C and C-O Bond Activation: Green One-Pot Synthesis of 2-Amino-3-cyano-4H-pyrans. [PDF]
ChemistryOpen, 2016 We designed a ceria–vanadia/silica (Ce–V/SiO2) heterogeneous catalyst and used it for the green and efficient synthesis of 2‐amino‐3‐cyano‐4H‐pyran derivatives.
Maddila SN +3 more
europepmc +2 more sources
Iranian journal of pharmaceutical research : IJPR, 2018 The focus of our study is the synthesis and biological activity evaluation of a series of 4H-Pyran compounds and schiff bases fused 4H-Pyran derivatives which are known to possess a wide variety of biological activities.
Seyedeh Mahbobeh Mahdavi +5 more
semanticscholar +3 more sources
Zn complexed on hybrid manganese doped cobalt ferrite nanoparticles covered by silica as a catalyst in the synthesis of 2-amino-4H-pyran and N- arylquinoline derivatives [PDF]
HeliyonIn the present work, Zn complexed on hybrid manganese doped cobalt ferrite nanoparticles covered by silica were synthesized. These MNPs were characterized using different techniques including Fourier-transform infrared spectroscopy (FT-IR), X-ray ...
Najmieh Ahadi +2 more
doaj +2 more sources