The Chemistry of Aldehydes and Ketones in the Synthesis of Heterocycles-Historical Reactions with a New and Green Perspective

F Martins da Silva, JJ Junior… - Current Organic …, 2024 - benthamdirect.com
The reactivity of aldehydes and ketones carries great potential for multicomponent
heterocyclizations. These reactions are convergent and highly versatile in the development …

Thiophene and its analogs as prospective antioxidant agents: A retrospective study

R Mishra, N Kumar, N Sachan - Mini Reviews in Medicinal …, 2022 - ingentaconnect.com
The field of Free Radical Chemistry has gained considerable interest in the current scenario.
The formation of free radicals is attributable to different physiochemical factors, radiation …

Cytotoxic effects, carbonic anhydrase isoenzymes, α-glycosidase and acetylcholinesterase inhibitory properties, and molecular docking studies of heteroatom …

HU Celebioglu, Y Erden, F Hamurcu… - Journal of …, 2021 - Taylor & Francis
Today, interest in studies on the search for new drugs to be used in diseases such as
cancer, cardiovascular diseases, neurodegenerative diseases and diabetes, as well as …

2-Aminothiophenes as building blocks in heterocyclic synthesis: synthesis and antimicrobial evaluation of a new class of pyrido [1, 2-a] thieno [3, 2-e] pyrimidine …

H Behbehani, HM Ibrahim, S Makhseed… - European journal of …, 2012 - Elsevier
Multisubstituted 2-aminothiophenes 1a–c can be readily cyanoacylated via reaction with
cyanoacetic acid in presence of acetic anhydride under a microwave irradiation to form the …

[HTML][HTML] Synthesis and reducing power assay of methyl semicarbazone derivatives

M Singhal, A Paul, HP Singh - Journal of Saudi Chemical Society, 2014 - Elsevier
In the present study we have designed a new pharmacophore 'Chalconesemicarbazone'by
pharmacophore hybridization approach of drug design. A series of novel …

Design, synthesis, characterization, quantum-chemical calculations and anti-inflammatory activity of novel series of thiophene derivatives

MH Helal, MA Salem, MA Gouda, NS Ahmed… - … Acta Part A: Molecular …, 2015 - Elsevier
Abstract Interaction of 1-(4-morpholinophenyl) ethanone 1 with either malononitrile or ethyl
cyanoacetate 2 afforded Knoevenagel–Cope product 3. In subsequent treatment of 3 with …

DBU-mediated [4+ 1] annulations of donor–acceptor cyclopropanes with carbon disulfide or thiourea for synthesis of 2-aminothiophene-3-carboxylates

Z Su, S Qian, S Xue, C Wang - Organic & Biomolecular Chemistry, 2017 - pubs.rsc.org
DBU-mediated [4+ 1] annulations of donor–acceptor cyclopropanes with carbon disulfide or
thiourea to form 2-aminothiophene-3-carboxylate derivatives have been discovered. This …

Synthesis and biological evaluation of potent antifungal agents

A Geronikaki, M Fesatidou, V Kartsev… - Current topics in …, 2013 - ingentaconnect.com
The last two decades are characterized by major increases in the incidence of systemic
fungal infections caused by the yeast Candida albicans, particularly in immunocompromised …

[PDF][PDF] Evaluation of reducing power assay of chalcone semicarbazones

M Singhal, A Paul, HP Singh, SK Dubey… - J. Chem. Pharm …, 2011 - researchgate.net
In present study, a series of chalconesemicarbazones was synthesized, characterized and
evaluated for their reducing power assay. Most of the compounds were found to be potent …

Activation of Elemental Sulfur by Electrogenerated Cyanomethyl Anion: Synthesis of Substituted 2‐Aminothiophenes by the Gewald Reaction

M Feroci, I Chiarotto, L Rossi… - Advanced Synthesis & …, 2008 - Wiley Online Library
The activation of elemental sulfur (S8) has been achieved by means of electrogenerated
cyanomethyl anion [easily obtained by galvanostatic reduction from acetonitrile …