Applications of biological urea-based catalysts in chemical processes

B Atashkar, MA Zolfigol, S Mallakpour - Molecular Catalysis, 2018 - Elsevier
The present critical review outlines the close relationship and mutual interplay between
molecular recognition, active site considerations in enzyme catalysis involving …

Eco-friendly functionalization of magnetic halloysite nanotube with SO3H for synthesis of dihydropyrimidinones

A Maleki, Z Hajizadeh, R Firouzi-Haji - Microporous and Mesoporous …, 2018 - Elsevier
In this work, the preparation of a new magnetic nanocomposite Fe 3 O 4-halloysite-SO 3 H
with nanotube morphology decorated by the spherical nanoparticles is reported …

Pyromellitic acid grafted to cross-linked LDH by dendritic units: An efficient and recyclable heterogeneous catalyst for green synthesis of 2, 3-dihydro quinazoline and …

N Ghanbari, H Ghafuri - Heliyon, 2023 - cell.com
In this work, using layered double hydroxide (LDH) inorganic substrate, melamine as
binding agent and dendrimer G1 and also pyromellitic acid (PMA) organic catalytic agent a …

Sulfamic acid pyromellitic diamide-functionalized MCM-41 as a multifunctional hybrid catalyst for melting-assisted solvent-free synthesis of bioactive 3, 4 …

E Valiey, MG Dekamin, Z Alirezvani - Scientific Reports, 2021 - nature.com
This study introduces a practical approach to fabricate a novel hybrid acidic catalyst, namely
sulfamic acid pyromellitic diamide-functionalized MCM-41 (MCM-41-APS-PMDA-NHSO3H) …

Sulfonated highly ordered mesoporous graphitic carbon nitride as a super active heterogeneous solid acid catalyst for Biginelli reaction

MAD Fard, H Ghafuri, A Rashidizadeh - Microporous and Mesoporous …, 2019 - Elsevier
Abstract Development of new eco-friendly organocatalysis is a fundamental field in the
construction of sustainable future through the pursuit of greener chemical processes. Among …

12‐Tungstosilicic Acid H4[W12SiO40] Over Natural Bentonite as a Heterogeneous Catalyst for the Synthesis of 3,4‐dihydropyrimidin‐2(1H)‐Ones

LV Chopda, PN Dave - ChemistrySelect, 2020 - Wiley Online Library
Regionally available bentonite was modified by using heteropolyacid 12‐tungstosilicic acid
H4 [W12SiO40](TSA). The prepared 10–30% TSA/bent catalysts were characterized by …

1, 3, 5-Tris (2-hydroxyethyl) isocyanurate functionalized graphene oxide: a novel and efficient nanocatalyst for the one-pot synthesis of 3, 4-dihydropyrimidin-2 (1 H) …

MG Dekamin, F Mehdipoor, A Yaghoubi - New Journal of Chemistry, 2017 - pubs.rsc.org
In this research, the preparation, characterization and catalytic application of a novel 1, 3, 5-
tris (2-hydroxyethyl) isocyanurate functionalized graphene oxide (GO–THEIC) nanomaterial …

An efficient and robust heterogeneous mesoporous montmorillonite clay catalyst for the Biginelli type reactions

A Phukan, SJ Borah, P Bordoloi, K Sharma… - Advanced Powder …, 2017 - Elsevier
Three component coupling reactions of aldehyde, β-ketoester (or β-diketone) and urea (or
substituted urea) were carried out by using acid activated montmorillonite clay (AT-Mont.) …

Solvent-Free One-Pot Synthesis of Diverse Dihydropyrimidinones/Tetrahydropyrimidinones Using Biginelli Reaction Catalyzed by Fe3O4@C@OSO3H

SF Taheri Hatkehlouei, B Mirza… - Polycyclic Aromatic …, 2022 - Taylor & Francis
Abstract One-pot synthesis of 3, 4-dihydropyrimidinone/thione and 3, 4, 5, 6-
tetrahydropyrimidinone/thione derivatives was successfully performed in high yields through …

Recent advances in the synthesis of C-5-substituted analogs of 3, 4-dihydropyrimidin-2-ones: a review

SK Rathwa, MS Vasava, MN Bhoi… - Synthetic …, 2018 - Taylor & Francis
Dihydropyrimidin-2-ones act as a versatile scaffold in organic synthesis, which serves as a
significant template for the development of various therapeutic agents and shows a wide …