OOIR: Observatory of International Research

Papers

(The TQCC of Letters in Organic Chemistry is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-05-01 to 2024-05-01.)

Article	Citations
Zeolite Catalyzed Friedel-Crafts Reactions: A Review	11
Design, Synthesis and Anticancer Evaluation of Acetamides Comprising 1,2,3-triazole, 1,3,4-thiadiazole and Isothiazolo[4,3-b]pyridine Rings	10
Ultrasound-Assisted One-Pot Synthesis of Tetrahydropyrimidne Derivatives through Biginelli Condensation: A Catalyst Free Green Chemistry Approach	10
Investigation of Adsorption of Sulfanilamide Drug on Surfaces of the B12N12 and Al12N12 Fullerenes: A DFT Study	10
1,2,4-triazoles Clubbed Pyrimidine Compounds with Synthesis, Antimicrobial, Antituberculosis, Antimalarial, and Anti-protozoal Studies	9
Recent Development in the Chemistry of Bicyclic 6+5 Systems, Part II: Chemistry of Triazolopyrimidine Derivatives	8
Phytochemical Study: Molecular Docking of Eugenol Derivatives as Antioxidant and Antimicrobial Agents	8
An Efficient One-Pot, Multicomponent Synthesis of 1, 3-Thiazolidin-4- Ones Using L-Proline as Catalyst in Water	7
Zn(OAc)2•2H2O-Catalyzed Betti Base Synthesis under Solvent-free Conditions	7
Synthesis and Biological Properties of Coumarin Analogue: A Brief Review	7
Synthesis and Characterization of Pine-cone Derived Carbon-based Solid Acid: a Green and Recoverable Catalyst for the Synthesis of Pyrano_ pyrazole, Amino-benzochromene, Amidoalkyl Naphthol and Thiazo	7
Theoretical Study of Adsorption of Solriamfetol Drug on Surface of the B12N12 Fullerene: A DFT/TD-DFT Approach	7
Halloysite Nanotubes Functionalized Sulfonic Acid: Synthesis, Spectroscopic Characterization, Computational Studies and Application for the Synthesis of 1,4-Dihydropyridines	7
Vilsmeier-Haack Cyclisation as a Facile Synthetic Route to Thieno [2,3- b] Quinolines (Part I)	7
Various Techniques for Molecular and Rapid Detection of Infectious and Epidemic Diseases	7
A Simple and Efficient Protocol for the Synthesis of 3,4-Disubstituted Isoxazol-5(4H)-Ones Catalyzed by Succinic Acid Using Water as Green Reaction Medium	7
Recent Advancements in Biological Activities of Oxadiazole and their Derivatives: A Review	7
Lewis Acid-Catalyzed Synthesis of Alkoxymethylhalides for Multipurpose Mixed Acetals; Scope and Limitations	6
LED Light Sources in Organic Synthesis: An Entry to a Novel Approach	6
Synthesis, Antiproliferative Activity and Molecular Docking of New Thiazole/Benzothiazole Fused Pyranopyrimidine Derivatives	6
Efficient Synthesis of 4-Arylmethylene-3-methylisoxazol-5(4H)-one Derivatives Catalyzed by Malic Acid	6
Overview of Coumarins and its Derivatives: Synthesis and Biological Activity	6
Synthesis, Antibacterial and Antioxidant Activities of Some New Nsubstituted Azachalcone, Schiff base and Pyrazole Derivatives	6
Sulfated Tin Oxide: A Convenient Heterogeneous Catalyst for the Synthesis of 4-Arylmethylidene-3-Substituted-Isoxazol-5(4H)-Ones	6
Heck Cross-Coupling Reactions in Ionic Liquid mediated Pd Nanocatalysts	6

Arylhydrazono/Aryldiazenyl Pyrazoles: Green One-Pot Solvent-Free Synthesis and Anticancer Evaluation	5
Microwave-Assisted Synthesis of Thiazole/Benzothiazole Fused Pyranopyrimidine Derivatives and Evaluation of their Biological Activity	5
Novel Derivatives Based on Zerumbone Scaffold as Potential Anticancer Inhibitors	5
Active γ –Alumina -Supported Ru Nanoparticles for CO2 Hydrogenation Reaction	5
Magnetically Recyclable Silica-Coated Magnetite-Molybdate Nanocatalyst and its Applications in N-Formylation Reactions Under Solvent-Free Conditions	5
Study of Photocatalytic Degradation, Kinetics and Microbial Activities of Copper (II) Soya Urea Complex in Non-Aqueous Media	5
A Review on Synthetic Approaches of Phenanthridine	5
DFT Study on the Interaction of Lenalidomide Anticancer Drug on the Surface of B12N12 Nanocluster	5
Iodine-Mediated Multi-Component Reactions: Readily Access to Tetrazoles and Guanidines	4
Novel One-pot Synthesis of Pyranocarbazole Derivatives via an Isocyanidebased Three-component Reaction	4
Vilsmeier-Haack Cyclisation as A Facile Synthetic Route to Thieno [2,3- b] quinolines (Part I)	4
Chiral Mn(III) Salen Complex Immobilized on CuFe2O4@SiO2-NH2 NPs: A Cheap and Efficient Catalyst for N-arylation of Aryl Halides and Phenylboronic Acid Under Mild Conditions	4
Pro-Phe Derivatives as Organocatalysts in Asymmetric Aldol Reaction	4
Miscellaneous Passerini Reaction for α-Acyloxy Carboxamide: Synthesis and Process Optimization Study	4
Lipids and Free Fatty Acids of Red Sea Avrainvillea amadelpha, Holothuria atra, and Sarcocornia fruticosa Inhibit Marine Bacterial Biofilms	4
Microwave Irradiated Synthesis of Pyrimidine Containing, Thiazolidin-4- ones: Antimicrobial, Anti-Tuberculosis, Antimalarial and Anti-Protozoa Evaluation	4
Synthesis of (E)-1,2-Bis[4-[di(1H-pyrrol-2-yl)methyl]phenyl]ethene as a New Bis(dipyrromethane) Building Block	4
Trihaloisocyanuric Acids: Useful Reagents for Conversion of Benzaldehydes into Benzylidene Dihalides under Appel Conditions	4
Bioactivity of Marine Natural Product Xyloketals	4
Fe Doped Ga2O3 Nanomaterial Catalysed Green and Efficient One Pot Three Component Synthesis of Tetrahydrobenzo[b]pyran	4
Synthesis, Evaluation of Biological Activity, Docking and Molecular Dynamic Studies of Pyrimidine Derivatives	4
Design, Synthesis and Evaluation of Hybrid 2-Heteroaryl Benzimidazole- Chalcone Derivatives as Anticancer Agents	4
Urea as an Ammonia Surrogate in the Hantzsch’s Synthesis of Polyhydroquinolines / 1,4-dihydropyridines under Green Reaction Conditions	4
1-Ethyl-3-Methylimidazolium Cyanoborohydride Catalyzed Solvent Free Microwave Assisted One Pot Multicomponent Synthesis of Tetrahydrobenzo[ b]Pyran Derivatives	3
Wonderful Natural Drugs with Surprising Nutritional Values, Rheum Species, Gifts of the Nature	3
Synthesis and Antimicrobial Evaluation of Benzimidazolyl Pyrimido [4, 5- b] Quinolinones	3
Computational and Experimental Investigations of 7-(4-nitrophenyl)benzo [6,7]chromeno[3,2-e]pyrido[1,2-a]pyrimidin-6(7h)-one	3
Synthesis of Chalcone Derivatives by Phthalhydrazide-Functionalized TiO2-Coated Nano-Fe3O4 as a New Heterogeneous Catalyst	3
Halogen Bond-Catalyzed Friedel-Crafts Alkylation of Indole with Ketones and Aldehydes for the Synthesis of Symmetrical 3,3’-diindolylmethanes Using Simple Halogen Donor Catalyst	3
2,5-Disubstituted-4-Thiazolidinones: Synthesis, Anti-Inflammatory, Free Radical Scavenging Potentials and Structural Insights through Molecular Docking	3
N-Heterocycles as Privileged Scaffolds in FDA Approved Different NMEs of 2021: A Review	3
Solvent-Free Three Component Synthesis of N-alkylated Derivatives of N-Acylhydrazones from Hydrazides, Aldehydes and α,β-unsaturated Esters	3
BCl3 Catalyzed, Solvent Free Protocol for the Synthesis of Dihydropyrano[ 3,2-b] Chromenediones	3
Ruthenium Metal: Uplifting Regioselective C-H Activation	3
Ionic Liquids: Designer Solvents for Cleaner Technologies	3
Sulfonated Ethylenediamine Functionalized Magnetic Nanoparticles as a Highly Efficient Heterogeneous Nanocatalyst for the Green Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones	3
Characterization of Bioactive Compounds from the Red Sea Tunicate- Derived Fungus Penicillium commune DY004	3
Two Schiff-base Complexes of Copper and Zirconium Oxide Fabricated on Magnetic Nanoparticles as Practical and Recyclable Catalysts in C-C Coupling Reaction	3
Strategic One-pot Synthesis of Glycosyl Annulated Phosphorylated/ Thiophosphorylated 1,2,3-Triazole Derivatives Using CuFe2O4 Nanoparticles as Heterogeneous Catalyst, their DFT and Molecular Docking S	3
Adsorption Properties and Quantum Molecular Descriptors of the Anticancer Drug Cytophosphane on the Armchair Single-Walled Carbon Nanotubes: A DFT Study	3
One-Pot Solvent- and Catalyst-Free Synthesis of Some New Heteroarylaminonaphthoquinones from Lawsone	3
K2CO3/TBAB, a Composite of Inorganic and Organic Salts, a Novel and Powerful Media for Regioselective Michael Addition of Dihydropyrimidinones to Acrylic Esters Under and Without Solvent Conditions	3
Recent Advances in Transition Metal Mediated Synthetic Approaches to Quinoline Derivatives	3
Stereospecific Synthesis of (4E,10Z)- 4,10-Tetradecadienyl Acetate, the Major Sex Pheromone of Apple Leaf Miner Moth, Phyllonorycter ringoniella	3
Geometry Optimization, UV/Vis, NBO, HOMO and LUMO, Excited State and Antioxidant Evaluation of Pyrimidine Derivatives	3
Synthesis and Biological Evaluation of Thymol Functionalized Oxadiazole thiol, Triazole thione and β-lactam Derivatives	3
Phenolic Contents and Antioxidant Activity of Helicteres Hirsuta Extracts	3
Synthesis of Pyrazole-Carboxamides and Pyrazole-Carboxylic Acids Derivatives: Simple Methods to Access Powerful Building Blocks	3
Simplified Procedure for Application of DBE, the Rule of 13 & Nitrogen Rule in Structure Elucidation of Organic Compounds	3
Asymmetric Reactions in Water Catalyzed by L-Proline Tethered on Thermoresponsive Ionic Copolymers	3

A Computational Study of the Conformational Behavior of 2,5-Dimethyl- 1,4-dithiane-2,5-diol and Analogous S and Se: DFT and NBO Study	3
Therapeutic Effect, Chemical Composition, Ethnobotanical Profile of Eucalyptus globulus: A Review	3
Synthesis of Spiro[cycloalkane-pyridazinones] with High Fsp³ Character Part 2*	3
Acemannan from Aloe vera Extract: A Catalyst-Free, Approach for the Access of Imidazole-Fused Nitrogen-Bridgehead Heterocycles	2
Conventional and Microwave-Assisted Synthesis of Novel 1,2,4-Triazole Derivatives Containing Tryptamine Skeleton and Evaluation of Antimicrobial Activity	2
Conformational Stability, FMO, NMR, MEP and NBO Analysis of 2,5-Di-methyl-2,5-bis(methylthio)-1,4-dithiane and Dimethoxy compounds by DFT Approach	2
One-Pot, Regioselective Synthesis of Homopropargyl Alcohols using Propargyl Bromide and Carbonyl Compound by the Mg-mediated Reaction under Solvent-free Conditions	2
A Convenient Protocol for the Oxidation of Benzyl and Secondary Alcohols to Carbonyl Compounds by Trichoroisocyanuric Acid	2
Novel 1,2,3-Triazole-functionalized pyrido[3',2':4,5]furo[3,2-d]pyrimidin- 4(3H)-one Derivatives: Synthesis, Anticancer Activity, CoMFA and CoMSIA Studies	2
Visible Light Mediated, Catalyst Free, One-Pot Convenient Synthesis of Dihydropyridines	2
[EMIm][BH3CN] Ionic Liquid as an Efficient Catalyst for the Microwave- Assisted One-Pot Synthesis of Triaryl Imidazole Derivatives	2
Preface	2
Triethanolammonium Acetate ([TEAH][OAc]) as a Recyclable Promoter and Medium for Green and Four-component Synthesis of Polyfunctionalized Pyrrole Derivatives	2
A New Precursor for the Radiosynthesis of 6-O-(2-[¹⁸F]Fluoroethyl)-6-Odesmethyl- diprenorphine ([¹⁸F]FE-DPN) by Nucleophilic Radiofluorination	2
Recent Updates on Synthetic Strategies and Biological Potential of 1,3,4- oxadiazole: Review	2
One New Steroidal Saponin from the Leaves of Cordyline fruticosa (L.) A. Chev.	2
In-silico Approach for Evaluation of Antimalarial Potential of Costunolide Synthase Enzyme and Sesquiterpene Lactones from Cichorium intybus	2
Green Synthesis of 2-thioxothiazolidin-4-one Derivatives in Deep Eutectic Solvents via Knoevenagel Condensation	2
An Efficient Rapid Synthesis of Benzoxazoles and Benzothiazoles Using PMA.SiO2 at Room Temperature under Heterogeneous Conditions	2
Chemical Constituents and Antibacterial Activity of Cissus aralioides	2
An Effective Assembling of Novel Derivatives Containing Both Benzo[d]thiazole and Benzo[d]oxazole Rings	2
Improvements in the Acylation of 3-Methylindole Using Amberlyst-15	2
Nano-SnCl4/SiO2 as a Catalyst for One-Pot Synthesis of Substituted 1H-Pyrazoles as Antifungal and Cytotoxic Agents	2
Efficient and Regioselective Ring-opening of Epoxides with Carboxylic Acid Catalyzed by Graphite Oxide	2
Synthesis and Biological Activity of Aldehyde Derivatives of Isopimaric Acid	2
Thiazolidine-2, 4-Diones as Non-Hepatotoxic Tri-action Drug Candidates: Design, Synthesis, Characterization, Biological Evaluation and Docking Studies	2
Aerobic Oxidation of Aldehydes to Carboxylic Acids Catalyzed by Recyclable Ag/C3N4 Catalyst	2
Chromene, Quinoline Hybrids as Potential Anti-Cancer Agents: A Novel and Distinct Approach for the Synthesis of Quinoline Derivatives	2
Green Synthesis of Acylhydrazides Involving a Heterocyclic Moiety using Terminal Dihaloalkanes in Organic Salt Media under Solvent-Free Conditions	2
A Review on the Syntheses and Applications of the 5H-chromeno[2,3- b]pyridines	2
Synthesis and Reactivity of Dihalofuranones	2
Application of Amine-based Ru Compounds in the Olefin Metathesis of Methyl Eugenol: A Comparison with Grubbs Catalysts	2
Synthesis, Characterization, and Antimicrobial Evaluation of New Furan-2-Carboxamide Derivatives	2
Synthesis of 5-amino-1-aryl-3-methyl-1H-pyrazole-4-carbonitriles, Antifungal Activity and In Silico Analysis	2
Metal-Free Synthesis of Pyrimidinone Derivatives via Biginelli Reaction Using Aqueous NaICl2	2
Simple, Stepwise and Alternative Syntheses of Indolyl Triazoles via Huisgen,s 1, 3-dipolar Cycloaddition Reaction	2
Solid State Kinetics and Antimicrobial Studies for Copper (II) Sesame and Copper (II) Groundnut Complexes with Substituted Benzothiazole Ligand	2
Construction the A-B Bicyclic Ring Structure of Stemocurtisine	2
Synthesis of New C2-Symmetric Chiral Benzimidazole Derivatives Having Norbornene/Dibenzobarrelene Skeletons	2
A Combined Experimental and Theoretical DFT (B3LYP and CAMB3LYP) Study on Spectral Features (FT-IR, NMR, and UV-Visible), First-order Hyperpolarizability, NBO and HOMO-LUMO Analysis of 4-(dimethylamin	2
A Convenient Stereoselective Method for Synthesis of β-Lactams Under Microwave Irradiation with [BmIm] OH as a Reusable Ionic Liquid	2
Substituted Imidazole-Pyrazole Clubbed Scaffolds: Microwave Assisted Synthesis and Examined Their In-vitro Antimicrobial and Antituberculosis Effects	2
Design, Synthesis, Antioxidant, Anti-inflammatory Activity and Molecular Docking Studies of Novel 3,4,5-Trisubstituted-1,2,4-Triazole Derivatives Bearing Benzimidazole Moiety	2
A Review on the Synthetic Approach of Marinopyrroles: A Natural Antitumor Agent from the Ocean	2
Solvent-free, Silica Catalyzed Intriguing Conversion of 3- Hydrazonobutan-2-one Oxime into Biacetyl Bis-hydrazone Schiff Bases	2
Microwave-Induced Expeditious Synthesis of Biologically Active Substituted Imidazoles using CuO-TiO2-GO Nanocomposite as a Recyclable Catalyst	2
Multi-component Preparation of Pyrazolo[3,4-d]thiazolo[3,2-a]pyrimidines Using Solvent-free and HSBM Techniques	2
Decomposition Kinetics of 1,1-Dihydroperoxycyclohexane in Some Organic Solvents	2
Design, Synthesis, Anticancer Activity and Molecular Docking Studies of 2,5-Disubstituted-1,3,4-Oxadiazoles Containing Benzimidazole Moiety	2
In Silico Screening of Some Anti-Cancer Drugs Against the Main Protease of COVID-19 Using Molecular Docking	2
Ru Nanoparticle Intercalated Montmorillonite Clay Catalytic System for the Reduction of Aliphatic/Aromatic Nitro Compounds	2
Squaramide-Catalyzed Enantioselective Michael Addition of Pyrazol-3- ones to ortho-Quinone Methides	2
Spectroscopic and Computational Studies on a Dansyl Based Luminescent Probe: Detection of Water Contaminant in Hygroscopic Deuterated Solvents	2
Synthesis of C3-Quaternary 2H-Pyrrolines by [3+2] Cycloaddition of Isocyanoacetates and 1,1-Disubstituted Alkenes	2
Microwave-assisted, Copper-free Sonogashira Coupling Between Aryl Halides and Terminal Alkynes Using Recyclable Ionic Liquid and Catalyst	2
Preparation, Characterization, and Application of Ru-Silica-Ionic Liquid System for CO2 Hydrogenation Reaction	2
Tylenol® and Aspirin® as Green Promoters for Ipso-Hydroxylation of Arylboronic Acids	2
Chemical Compositions and Anti-cancer Activities of the Volatile Oils of Leaves and Rhizomes of Three Polianthes Species	2
Design, Synthesis, Characterization and In Silico Molecular Docking Studies and In Vivo Anti-inflammatory Activity of Pyrazoline Clubbed Thiazolinone Derivatives	2
Green and Efficient Synthesis of Fluorescent Bis(pyrazolyl)methanes in Choline Chloride/Urea Deep Eutectic Solvent	2
Distinguishment of Weak Interactions of Hydrogen Atoms Bound to Carbon Atoms: X-Ray Crystal Structural and Hirshfeld Surface Analyses of 2- Hydroxy-7-methoxy-3-(2,4,6-trimethylbenzoyl)naphthalene with	2
Magnesium Sulphate-Catalyzed Green and Efficient Synthesis of Some New Derivatives of 1-Amido Alkyl Naphthols under Solvent-Free Conditions	2