Results 71 to 80 of about 971 (170)

SPECIFIC “IONIC LIQUIDS” AS NEW ORGANOCATALYSTS OF BIGINELLI REACTION [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2008
New ionic liquids bearing an imidazolium core with a carboxy group have been prepared in an attempt to design new organocatalysts of Biginelli reaction. Trends in the properties of these compounds are discussed.
Viorica Sargarovschi, Eugenia Styngach, Fliur Macaev   +2 more
doaj  

Skeletal rearrangement in Biginelli reaction for the synthesis of chromenoquinoline fused spirohydantoins and their in silico cytotoxicity study

Scientific Reports
Although Biginelli reaction is known to generate dihydropyrimidinones having wide arrays of phramacological properties, herein we report an unprecedented skeletal rearrangement in Biginelli reaction to synthesize pharmacologically versatile imidazolidine-
Mezhubeinuo, Hemanta Bordoloi, Anurag Pratim Saikia, Ghanashyam Bez   +3 more
doaj   +1 more source

Ethyl (E)-4-(2,4-Dimethoxyphenyl)-6-(2,4-dimethoxystyryl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate

Molbank, 2017
A new compound belonging to the “heterostilbene” derivative, namely ethyl (E)-4-(2,4-dimethoxyphenyl)-6-(2,4-dimethoxystyryl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (2), has been successfully synthesized as an unprecedented side product of the ...
Hery Suwito, Lutfan Zulianto, Kautsar Ul Haq, Erwanto Erwanto, Abdulloh Abdulloh, Alfinda Novi Kristanti, Indriani Indriani   +6 more
doaj   +1 more source

Trifluoroacetic Acid as an Effective Catalyst for Biginelli Reaction: One-Pot, Three-Component Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones (and-Thiones)

E-Journal of Chemistry, 2011
Trifluoroacetic acid (TFA) is introduced as an effective catalyst for promotion of Biginelli reaction. 3,4-Dihydropyrimidin-2(1H)-one (-thione) derivatives (DHPMs) were simply and efficiently prepared using TFA catalyzed one-pot, three-component ...
Mohammad R. Mohammadizadeh, Neda Firoozi
doaj   +1 more source

Biginelli Reaction Synthesis of Novel Multitarget-Directed Ligands with Ca²⁺ Channel Blocking Ability, Cholinesterase Inhibition, Antioxidant Capacity, and Nrf2 Activation. [PDF]

Molecules, 2022
Malek R, Simakov A, Davis A, Maj M, Bernard PJ, Wnorowski A, Martin H, Marco-Contelles J, Chabchoub F, Dallemagne P, Rochais C, Jozwiak K, Ismaili L.   +12 more
europepmc   +1 more source

A four-component modified Biginelli reaction: A novel approach for C-2 functionalized dihydropyrimidines. [PDF]

Turk J Chem, 2021
Narkhede H, Dhake A, Balasubramaniyan V.
europepmc   +1 more source

Methyl 6-Methyl-4-(4-iodophenyl)-1,2,3,4-tetrahydro-2-thioxo-5-pyrimidinecarboxylate

Molbank, 2009
Methyl 6-methyl-4-(4-iodophenyl)-1,2,3,4-tetrahydro-2-thioxo-5-pyrimidinecarboxylate has been synthesized via Biginelli reaction of 4-iodobenzaldehyde, methyl acetoacetate and thiourea, promoted by microwave irradiation in the presence of iodine under ...
Qingjian Liu, Ning Pan, Wenwen Zhang
doaj   +1 more source

A Brønsted acidic ionic liquid anchored to magnetite nanoparticles as a novel recoverable heterogeneous catalyst for the Biginelli reaction. [PDF]

RSC Adv, 2021
Oboudatian HS, Naeimi H, Moradian M.
europepmc   +1 more source

Tungsten-substituted molybdophosphoric acid impregnated with kaolin: effective catalysts for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones via biginelli reaction. [PDF]

RSC Adv, 2021
Aher DS, Khillare KR, Chavan LD, Shankarwar SG.   +3 more
europepmc   +1 more source

Design, synthesis and biological Evaluation of novel chromones having 3,4-dihydropyrimidin-2(1H)-one core at C-8 in combination with triazoles: New α-glucosidase inhibitors and anti-bacterial agents

European Journal of Medicinal Chemistry Reports
The Biginelli reaction synthesizes dihydropyrimidones through a multi-component reaction. A β-ketoester, aldehyde, and urea or thiourea react in the presence of an acid catalyst to form these dihydropyrimidones.
Kumara Swamy Taviti, T.B. Patrudu, Nagalakshmi Jeedimalla, Naresh Kumar Katari, Satyanarayana Yatam, Rambabu Gundla   +5 more
doaj   +1 more source