Recent progress in the multicomponent synthesis of pyran derivatives by sustainable catalysts under green conditions

S Maddila, N Kerru, SB Jonnalagadda - Molecules, 2022 - mdpi.com
Pyrans are one of the most significant skeletons of oxygen-containing heterocyclic
molecules, which exhibit a broad spectrum of medicinal applications and are constituents of …

Engaging isatins in multicomponent reactions (MCRs)–easy access to structural diversity

P Brandão, CS Marques, EP Carreiro… - The Chemical …, 2021 - Wiley Online Library
Multicomponent reactions (MCRs) are a valuable tool in diversity‐oriented synthesis. Its
application to privileged structures is gaining relevance in the fields of organic and …

Chitosan-EDTA-Cellulose network as a green, recyclable and multifunctional biopolymeric organocatalyst for the one-pot synthesis of 2-amino-4H-pyran derivatives

N Rostami, MG Dekamin, E Valiey… - Scientific Reports, 2022 - nature.com
In this research, cellulose grafted to chitosan by EDTA (Cs-EDTA-Cell) bio-based material is
reported and characterized by a series of various methods and techniques such as FTIR …

Application of novel Fe3O4/Zn-metal organic framework magnetic nanostructures as an antimicrobial agent and magnetic nanocatalyst in the synthesis of …

BS Bashar, HA Kareem, YM Hasan, N Ahmad… - Frontiers in …, 2022 - frontiersin.org
Using the microwave-assisted method, novel Fe3O4/Zn-metal organic framework magnetic
nanostructures were synthesized. The crystallinity, thermal stability, adsorption/desorption …

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe2O4@starch as a magnetically recyclable bionanocatalyst

M Kamalzare, M Bayat, A Maleki - Royal Society Open …, 2020 - royalsocietypublishing.org
The development of simple, practical and inexpensive catalysis systems using natural
materials is one of the main goals of pharmaceutical chemistry as well as green chemistry …

Eosin Y-catalyzed one-pot synthesis of spiro [4H-pyran-oxindole] under visible light irradiation

MN Chen, JQ Di, JM Li, LP Mo, ZH Zhang - Tetrahedron, 2020 - Elsevier
An efficient and simple synthetic approach has been developed for the preparation of
biologically interesting spiro [oxindole-3, 4'-(4′ H-pyran)] derivatives via visible light …

Ultrasonic‐assisted preparation of Co3O4 and Eu‐doped Co3O4 nanocatalysts and their application for solvent‐free synthesis of 2‐amino‐4H‐benzochromenes …

L Kafi‐Ahmadi, A Poursattar Marjani… - Applied …, 2021 - Wiley Online Library
Co3O4 and Eu‐doped Co3O4 nanocatalysts were synthesized through an ultrasonic‐
assisted solvothermal method and were characterized with X‐ray diffraction (XRD), Fourier …

Immobilization of trypsin onto polyamidoamine dendrimer functionalized iron oxide nanoparticles and its catalytic behavior towards spirooxindole-pyran derivatives in …

S Peiman, R Baharfar, B Maleki - Materials Today Communications, 2021 - Elsevier
A novel biocatalyst of trypsin (Fe 3 O 4@ SiO 2@ D-NHCS-Tr) was prepared based on
PAMAM dendrimer immobilized on the surface of magnetic nanoparticles. Then, the catalyst …

Supported palladium oxide nanoparticles in Al-SBA-15 as an efficient and reusable catalyst for the synthesis of pyranopyrazole and benzylpyrazolyl coumarin …

MM Heravi, R Malakooti, K Kafshdarzadeh… - Research on Chemical …, 2022 - Springer
An eco-friendly method for diversity-oriented synthesis of substituted dihydropyrano [2, 3-c]
pyrazole and benzylpyrazolyl coumarin derivatives has been achieved via one-pot and …

Design, one-pot green synthesis and antimicrobial evaluation of novel imidazopyridine bearing pyran bis-heterocycles

A Thakur, G Pereira, C Patel, V Chauhan… - Journal of Molecular …, 2020 - Elsevier
Herein, we report design, one pot synthesis and antibacterial evaluation of novel
imidazopyridine bearing pyran bis-heterocycles. The compounds were synthesized in an …