Results 51 to 60 of about 1,311 (206)

Synthesis and Antioxidant Activity of Novel Biginelli Adducts with Phenolic Fragments

Applied Sciences
In this work, eco-friendly ceric ammonium nitrate (CAN) and ferric chloride hexahydrate catalysts in ethanol/acetonitrile systems were used to efficiently synthesize novel dihydropyrimidinone (-thione) derivatives via the Biginelli reaction. The obtained
Olga V. Snastina, Erik R. Sabitov, Viktoria A. Kuricheva, Vladimir N. Koshelev   +3 more
doaj   +1 more source

An Efficient Synthesis of 5-Alkoxycarbonyl-4-aryl-3,4-dihydropyrimidin-2(1H)-ones Catalyzed by KSF Montmorillonite

Molecules, 2000
A mild and efficient catalytic method for synthesis of 5-alkoxycarbonyl-4-aryl-3,4- dihydropyrimidin-2(1H)-ones using KSF montmorillonite as catalyst is described.
Ziyi Zhang, Xianten Chen, Jinchang Ding, Haixia Lin   +3 more
doaj   +1 more source

A green approach for the multicomponent synthesis of polyhydroquinolines and 6-unsubstituted dihydropyrimidinones using novel highly proficient acidic ionic liquid [CEMIM][MSA] as a reusable catalyst

Catalysis Communications, 2022
Carboxylic acid functionalized imidazolium based novel acidic ionic liquid [CEMIM][MSA] was synthesized using economically feasible raw materials under very mild condition.
Priyanka Patil, Suresh Kadam, Dayanand Patil, Paresh More   +3 more
doaj   +1 more source

Biological Activity and Efficient Synthesis of 3, 4- Dihydropyrimidin-2-(1H)-one/thione Derivatives [PDF]

, 2023
The present study aimed to use a method for the synthesis of some 3, 4- dihydropyrimidin-2-(1H) - ones/thiones. The study tried to answer the question whether this reaction can be performed without solvent and with new catalyst or not.
Hatamjafari, Farhad
core   +1 more source

Synthesis of pyrimidines, aromatic and heteroaromatic acids as Biginelli reaction catalysts [PDF]

, 2015
Aromatic as well as heteroaromatic acids were found to beexcellent catalysts for the Biginelli three component synthesisof dihydropyrimidinones. Benzoic acid, substituted benzoic acids, five- and six- membered heterocyclic acids can be used for this ...
Adnan, Muhammad, Ain Khan, Misbahul, Ain, Quratul, Amina, Humaira, Kanwal, Fareeha, Lin, Whei-Oh, Naeem Khan, Muhammad, Nazeer, Areesha, Perveen, Saima, Uzzaman, Ashar   +9 more
core  

EFFICIENT SODIUM SELENATE-CATALYZED SYNTHESIS OF 3,4-DIHYDRO-2(1H)-PYRIMIDINONES AND –THIONES UNDER SOLVENT-FREE CONDITIONS [PDF]

, 2009
Sodium selenate efficiently catalyzes the three-component Biginelli reaction of an aldehyde, a,β-keto ester and urea or thiourea under solvent-free conditions to afford the corresponding 3,4-dihydropyrimidin-2(1H)-ones or –thiones in excellent ...
Baghernejad, Bita, Heidari, Maryam, Hekmatshoar, Rahim, M. Heravi, Majid   +3 more
core   +2 more sources

STARCH SULFURIC ACID: AN ALTERNATIVE, ECO-FRIENDLY CATALYST FOR BIGINELLI REACTION [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2013
The one-pot multicomponent synthesis of 3,4-dihydropyrimidinone derivatives using starch sulfuric acid as an environmentally friendly biopolymer-based solid acid catalyst from aldehydes, β-keto esters and urea/ thiourea without solvent is described ...
Ramin Rezaei, Sara Malek, Mohammad Reza Sheikhi, Mohammad Kazem Mohammadi   +3 more
doaj  

Advances in the discovery of DHPMs as Eg5 inhibitors for the management of breast cancer and glioblastoma: A review

Results in Chemistry, 2023
Breast cancer and gliobalstoma are the most aggressive types of diseases causing serious health issues. Potent anticancer molecules are facing serious side effects which arouse the need for newer molecules with significant clinical efficacy and safety ...
Dhirajkumar Nikam, Anurekha Jain
doaj   +1 more source

Синтез и свойства хроматографических сорбентов с привитыми слоями ацетилацетоната никеля [PDF]

, 2013
Синтезированы хелатсодержащие хроматографические сорбенты с привитыми слоями ацетилацетоната никеля с помощью последовательной сборки на поверхности носителя через стадию хлорирования силикагеля.
Пахнутова, Евгения Андреевна, Слижов, Юрий Геннадьевич   +1 more
core  

Valorization of Different Wastes and Their Use for the Design of Multifunctional Eco-catalysts [PDF]

, 2017
The desire to protect the environment for future generations has led to the reutilization of all recoverable and recyclable wastes. Consequently, different residues from various sources were collected to make mixed compounds to be used as catalyst ...
Colombo Migliorero, María Belén, Igal, Katerine, Palermo, Valeria, Quaranta, Nancy, Romanelli, Gustavo Pablo, Sathicq, Ángel Gabriel, Vázquez, Patricia Graciela   +6 more
core   +1 more source