Ultrasound Assisted One-pot Synthesis of Dihydropyrimidinones Using Holmium Chloride As Catalyst [PDF]
Journal of Sciences, Islamic Republic of Iran, 2015 A simple and green chemical procedure was reported for the synthesis of dihydropyrimidinones from various aldehydes, ethyl acetoacetate and urea or thiourea using holmium chloride as catalyst.
S. Kakaei, H. Sid Kalal, H. Hoveidi
doaj
Molecules, 2016 An efficient one-pot synthesis of 1,2,3-triazole derivatives of dihydropyrimidinones has been developed using two multicomponent reactions. The aldehyde-1,2,3-triazoles were obtained in good yields from in situ-generated organic azides and O ...
Rodrigo González-Olvera +5 more
doaj +1 more source
Multicomponent Reactions for the Preparation of Fluorous Taged Pyrimidines and Thiopyrimidines and their Derivatisation to Obtain Biaryl-Substituted Heterocycles [PDF]
, 2011 This thesis presents a work in the field of multicomponent reactions (MCRs), one-step condensation between a fluorous tagged aldehyde, β-keto ester and urea derivatives. This process in literature is known as Biginelli Reaction .
Piqani, Bruno
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Solvent free one pot synthesis of novel naphtho[1,8-gh] quinazoline-7,10-dione derivatives with CuCl2 [PDF]
, 2018 The Biginelli-type reaction of phenalen-1,3-dione with urea, and benzaldehyde derivatives in the presence of CuCl2 as a catalyst for the synthesis of naphtho[1,8-gh]quinazoline-7,10-diones in solvent free condition are reviewed.
K. Mohammadi, M.
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Microwave induced synthesis of some fused thiazoloquinazoline derivatives under solvent free conditions using LiBr as a catalyst [PDF]
Two rapid and efficient methods for the preparation off used thiazoloquinazoline derivatives by the reaction of chalcones with hydroxylamine, urea and hydrazine hydrate under solvent free condition and microwave exposure are reported.
Ameta, Chetna +4 more
core
Pivalic acid assisted Biginelli reaction for synthesis of dihydropyrimidinones and dihydrothiopyrimidinones [PDF]
, 2021 Herein is provided an alternate, simple, multigram scale, efficient route for Biginelli reaction for synthesis of dihydropyrimidinones using urea, ethylacetatoacetate, and benzaldehyde with pivalic ...
Anveka, Tushar S +8 more
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Molecules, 2009 A simple, efficient procedure for the one-pot Biginelli condensation reaction of aldehydes, β-ketoesters and urea or thiourea employing copper(II) sulfamate as a novel catalyst is described.
Ji-De Wang, Chen-Jiang Liu
doaj +1 more source
Simple and Efficient One Pot Solvent Free Synthesis of 3,4-Dihydropyrimidin-2(1H)-Ones and Thiones by using Ionic Liquid at Reflux Condition [PDF]
, 2015 A simple and efficient method for the one-pot Biginelli condensation reaction of aldehydes, ????-dicarbonyl compounds, and urea or thiourea is developed by using ionic liquid catalyst at reflux under solvent free condition.
SushilkumarDhanmane, MuralidharShingare
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Nanostructure Polyaniline (PANI) Decorated TiO2 Nanocomposite as Efficient Heterogeneous Catalyst [PDF]
The paper describes the synthesis of conducting polyaniline-TiO2 (PANI-TiO2) nanocomposite by chemical oxidative polymerization method using aniline as a monomer. TiO2 nanoparticles were synthesized by sol gel method using TiCl4 and ethanol.
Chabukswar, Vasant V. +6 more
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Synthesis And Bioactivity of Dihydropyrimidinone (DHPM) Derivatives
European Chemical BulletinDihydropyrimidinones (DHPMs) is an main type of heterocyclic compounds whih shows biological activities. This review/article focuses on the synthetic strategies employed for the construction of DHPM frameworks and highlights their bioactivity profiles across various pharmacological targets.
Ganesh L. Kirdat +3 more
openaire +3 more sources