OOIR: Observatory of International Research

Papers

(The TQCC of Arkivoc is 1. 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 2022-05-01 to 2026-05-01.)

Article	Citations
Cyclohexylamine – an efficient organocatalyst for the synthesis of 2-amino-4H-chromene derivatives by multicomponent reactions of salicylaldehydes, active methylene compounds and nitroalkanes	38
Synthesis of a novel series of 1,2-dihydroquinoline-8-glyoxylamide derivatives	12
A convenient synthetic approach to 11H-indolo[3,2-c]quinoline framework via Friedlander condensation and Cadogan cyclization	9
Synthesis, characterization and antimicrobial activity of new 1,2,4-triazole and pyridine derivatives bearing methyl 4-aminosalicylate moiety as a substructure	8
Efficient aqueous Suzuki coupling at room temperature via micellar catalysis with unconventional surfactants	7
Green asymmetric synthesis of binol via oxidative cross-coupling in the presence of L-cysteine@Fe3O4 nanoparticles	7
Generation of benzyne from aryl benziodoxaborole triflate under aqueous conditions and its reactions with alkyl aryl sulfides	7
Total synthesis of natural products containing the tetralone subunit	7
Design, synthesis and antimicrobial evaluation of novel 1-phenyl/hetaryl-4-arylazo-3,5-bistrifluoromethyl-1H-pyrazole derivatives	6
Synthesis of some novel coumarin-pyrimidine hybrid compounds from 8- and 6-acetyl-7-hydroxy-4-methylcoumarin	6
Synthesis of substituted 1,3-oxazino[5,4,3-ij]quinolin-1,3-diones by the oxidation of various pyrrolo[3,2,1-ij]quinoline-1,2-diones with m-chloroperbenzoic acid	5
Copper-catalyzed silylation of activated alkenes by photoinduced ligand-to-metal charge transfer	5
Pseudo-enantiomeric coupling reagents for predictable incorporation into the peptide chain D and/or L amino acid residue of racemic substrates	5
Synthesis and photophysics of platinum capped phenylene ethynylene oligomers	5
Recent developments in the synthetic strategies, reactions and biological importance of thieno[2,3-c]pyrazoles	4
Scalable synthesis of 3-O functionalized deoxyribonolactones from biorenewable levoglucosenone	4
Exploring NHCs as organocatalysts: a modern synthetic tool	4
Synthesis and electrochemical properties of tetramethyl ammonium salts of [(PhO)Ni(CF3)3]2- and [(7-azaindole)Ni(CF3)3]2-	4
Synthesis and structure of N-acetyliminosulfane-stabilized carbone C(SPh2NC(O)Me)2	4
Evaluation, synthesis and structural properties of stable bisbenzimidazolium tetrafluoroborates derived from unstable benzotetraazafulvalenes	4
Visible light-induced metal-free synthesis of quinoxalines using Rose Bengal as a photocatalyst	3
Concise total syntheses of lysergene, lysergine, isolysergine and festuclavine	3
Diversity-oriented synthesis of benzo[b]thiophenes fused to medium-sized N-heterocycles via Friedel–Crafts cyclization processes	3
Terpenoid metabolites of the Australian nudibranch Goniobranchus coi (Risbec, 1956)	3
Recent progress in hypervalent iodine chemistry	3

Light induced cyclization of tryptamine-naphthoquinone hybrids	3
Metal-based catalysts containing a phosphonate moiety – from synthesis to applications in organic chemistry	3
Synthesis, solid-state structure, and electrochemical properties of thienodipyrimidine-2,4,5,7-tetra(thi)ones	3
Novel combinatorial approach to the synthesis of dihydropyridine (quinoline) based merocyanine dyes	3
Selective aliphatic thiol conjugation to α-benzylidene succinimides: a versatile route to advanced succinimide functionalization	3
1H-Benzo[de]cinnolines: an interesting class of heterocycles	3
Recent advances in the synthesis of fused and bridge oxacycles via Prins cyclization	3
Synthesis and optimization of stapled DOCK peptides with improved drug-like properties	3
Gold-catalyzed reactions using N-propargyl β-enaminones	3
Synthesis of 2-fluorobenzoic acids by nucleophilic fluorination of 1-arylbenziodoxolones	3
Novel conversions of a multifunctional, bio-sourced lactone carboxylic acid	3
Potassium phosphate catalyzed synthesis of substituted o-propargylsalicylaldehydes	3
Synthesis of C2-symmetric carbohydrate-based macrocycles by introduction of methylene/p-xylene linkers	3
Barbituric and thiobarbituric acid derived chromophores as anticancer agents	3
2-Oxo-2-(arylamino)ethyl 4-formylbenzoates: Aldehyde precursors for the synthesis of new 2-amino-3-cyano-1,4-dihydropyrans	3
Unveiling the impact of a CF2 motif in the isothiourea catalyst skeleton: Evaluating C(3)-F2-HBTM and its catalytic activity	3
Microwave thermal effects in chemistry	3
Carboxylic acid as a traceless directing group for palladium-catalyzed proaromatic C(alkenyl)–H arylation	3
The Diels-Alder reaction of 1,4-quinones in hexafluoroisopropanol	2
The expanding landscape of metal–amino acid complexes in modern bioinspired catalysis	2
Synthesis and anticancer studies of novel benzimidazole/benzoxazole-pyrazine derivatives	2
Perfluorinated pinacol promotes efficient amidination of 2-aminophenylboronic acid	2
Gold-NHC-N-naphthamide complexes	2
Pivalic anhydride mediated esterification of phenols with carboxylic acids through sodium thiosulfate catalysis	2
Synthesis of some novel 1-aryl-1H-1,2,3-triazole-4-carboxamides and ethyl 1-aryl-5-(1,2,3-triazol-1-yl)-1H-pyrazole-4-carboxylates	2
Recent developments in the chemistry of iodine(III) compounds with nucleophiles	2
Recent progress in synthesis of 3-functionalized azetidines	2
Recent advances in (di-)hydroxyproline synthesis	2
A practical and mild Peterson olefination protocol mediated by CuCl2٠2H2O	2
Efficient microwave synthesis and anti-cancer evaluation of new substituted 2,4-diazaspiro[5.5]undecane-1,5,9-trione (or 1,3,5,9-tetraone) derivatives	2
Regioselective photochemical [2+2]-cycloadditions of chromenones to substituted alkynes	2
One-pot three-component synthesis of 6-aryl-3-(arylamino)-5H-thiazolo[3',2':1,2]pyrimido[4,5-b]quinolines utilizing 4-amino-6-oxo-pyrimidin-tethered N-aryl-2-mercaptoacetamides as precursors	2
An efficient and mild method for the synthesis of tetrazolo-fused-pyridine derivatives	2
Women Chemists Worldwide 2025-2026	2
Spiro[bicyclo[3.2.0]heptane-2,2'-[1,3]dioxolan]-6-one - a versatile intermediate for the synthesis of cyclopentane-derived natural products	2
Synthesis of C4-substituted 1,2,3,4-tetrahydroisoquinolin-6-ols as potential estrogen receptor modulators	2
Survey reactions of gabapentin with trifluoroacetimidoyl chlorides or trialkyl phosphites	2
The synthesis of symmetrical peripheral and non-peripheral octa-substituted metal-free phthalocyanines: simpler, better, faster, cheaper	2
3-(2-Nitrobenzyl)quinoxalin-2-ones, and pyrido- and 1,2,5-oxadiazolo-fused 2-(2-nitrobenzyl)pyrazin-3-ones in the synthesis of bi-, bis- and condensed heterocyclic systems	2
N-Difluoromethylpyrazoles: in-demand and now available fluorinated building blocks	2
A tribute to Professor Saverio Florio	2
2-Phenylsulfanylhydroquinone dimer mono-quinone derivative as a new fluorescence dye responding to reductive conditions	2
Recent developments in the synthesis of substituted benzo[b]thiophenes	2
A ring-closing metathesis-oxidation approach for the synthesis of seven-membered ring analogues of purpurogallin	2
A short review on selena and tellurasteroids	2
Multi-component reactions for the synthesis of current spiro-quinoxaline pyrrolizidine carboxylates via [3+2] cycloaddition reactions	2
Solvent-controlled diastereodivergent cascade synthesis of trisubstituted tetrahydrothiophenes utilizing polystyrene-supported amine	2
The cycloaddition chemistry of 3-oxidopyraziniums. Dimerisation of 1-(4-methoxybenzyl)-5,6-dimethyl-3-oxidopyrazinium	2
The xanthate radical addition route to sulfur heterocycles	2
Protecting group-free synthesis of the fungicide Mandipropamid	2

Oxidative cleavage of alkynes: a review of the methods invented so far and their application possibilities in green organic synthesis	2
Copper- and nickel- catalyzed C–P coupling reactions between P(O)–H compounds and alkyl radicals generated from alkylsilyl peroxides	2
Iodine(III)-mediated oxidative halogenation and catalytic nitration using simple aluminum salts. The full account	2
A tribute to Professor Ahmed Kamal	1
Advances in amidation chemistry – a short overview	1
Copper(II)-catalyzed oxidation of N-substituted isoindolinones to the corresponding phthalimides	1
A tribute to Professor Eder João Lenardão	1
Complex-assisted PtZn alloy formation for propane dehydrogenation	1
Approaches to the synthesis of indolo[2,3-a]quinolizidine-2,6-dione	1
Halonium metathesis reactions	1
Palladium-catalyzed synthesis of indenoindoles via C-H activation and tandem synthesis of indenoisoquinolines via Suzuki-Miyaura coupling and annulation	1
Pyridazino[4,5-b]indoles II. Reactions and biological importance	1
Green-inspired synthetic drives for organophosphorus compounds under solvent-free conditions	1
Celebrating women in process research at MSD	1
3-Aminopropylazetidines: facile synthesis and application for medicinal chemical purposes	1
Synthesis of high purity pyridine-phenolic ligands for metal ion optical sensors	1
A comparative study of biradicaloids as ligands in iron tetracarbonyl complexes	1
New phosphoramidites of RNA cleaving trisbenzimidazole catalysts: improved compatibility with oligonucleotide solid phase synthesis	1
Serendipitous synthesis of 2,3-dihydroquinazolin-4(1H)-ones in ZnCl2/urea deep eutectic solvent	1
4-, 5-, 6-, and 7-Hydroxybenzofuran: a unified strategy for a two-step synthesis of versatile benzofuranic building blocks	1
Recent advances and prospects in palladium-catalyzed Hiyama coupling reaction	1
Synthesis and exploratory biological evaluation of 3-[(N-4-benzyloxyphenyl)iminoethyl]- and 3-(1-hydrazonoethyl)-4-hydroxycoumarins	1
Synthesis of (5,6 & 6,6)-oxa-oxa annulated sugars as glycosidase inhibitors from 2-formyl galactal using iodocyclization as a key step	1
Hydrogenation of cinnamaldehyde over palladium nanoparticles supported on functionalized N-doped solid carbon spheres	1
Green synthesis of 1,4-benzoxazin-3-one using a choline chloride based deep eutectic solvent	1
Pd-catalyzed one-pot approach for installation of 9-aminoacridines via Buchwald-Hartwig amination and cycloaromatization	1
Pyrethroid insecticides Chapter IVb. Selected transformations of chrysanthemic acid and its lower esters to Pyrethroid. Use of the Wittig and related reactions	1
Stereoselective one-pot five-component synthesis of polysubstituted 1,4,5,6-tetrahydropyridines with two and three stereocenters	1
1H-isochromene-1-ones and isoquinoline-1(2H)-ones with carbonyl group in position 3: Features of synthetic approaches and transformation	1
Unusual reactivity of 2-amino-1H-indole-3-carboxylate esters	1
A tribute to Professor Graham Hutchings	1
An efficient total synthesis of vilanterol: an inhaled drug	1
Synthetic strategies of tricyclic fused quinoxaline ring systems: furoquinoxalines	1
A simple and efficient approach for the synthesis of functionalized naphtho[2,1-b]furan via an one-pot, three-component reaction between Meldrum's acid, arylglyoxals, and β-naphthol	1
Progress in metal-catalysed trifluormethylation reactions using hypervalent iodine reagents	1
Electrospray ionisation mass spectrometric studies of N-substituted 10-(aminosulfonyl)bornyl acrylate derivatives	1
Cu(OTf)2-triggered benzotriazole ring cleavage (BtRC) approach for the synthesis of 2-aryl/alkyl benzoxazoles from N-acylbenzotriazoles	1
Synthetic developments and functionalization approaches for bicyclo[1.1.1]pentanes via [1.1.1]propellane	1
In search of cocrystals and tricrystals of natural products. A sustainable approach	1
Novel bis([triazolo[3,4-b]thiadiazoles and bis([triazolo[3,4-b][thiadiazines) with antioxidant activity	1
Synthesis of new benzenesulfonylthiourea-containing compounds	1
Trimethylsilyl azide-promoted acid-amine coupling: A facile one-pot route to amides from carboxylic acids and amines	1
Trisodium citrate dihydrate catalyzed synthesis of fully and diversely functionalized novel piperidinone derivatives	1
Design, synthesis and characterization of azo group-containing flavonoid derivatives	1
Aromatic N-arylations catalyzed by heterometallic (CuII-BaII) metal−organic framework under heterogeneous base-free conditions in ethanol	1
Synthetic strategies for the functionalization of upper or lower rim of supramolecular calix[4]arene platform	1
Synthesis, cytotoxicity and molecular docking study of novel acid amine coupling derivatives	1
Tert-butyl hydroperoxide decomposition as a descriptor for liquid-phase hydrocarbon oxidation over transition metal oxide-based catalysts: a screening study	1
New bisthioalkyl substituted thieno[3,2-d]pyrimidines: synthesis and antitumor activity	1
Exploring sterically-demanding triarylphosphine ligands to enhance activation of challenging C-Cl bonds in palladium catalysis	1
An ultrasound assisted synthesis of spirooxindolo-1,2,4-oxadiazoles via [3+2] cycloaddition reaction and their anti-cancer activity	1
Synthesis of [28-13C]-24-methylenecholesterol using 1-tert-butyl-1H-tetrazol-5-yl [13C]-methyl sulfone to methylenate an isopropyl ketone intermediate	1
Synthesis of tetrazole- and imidazole-based compounds: prophetic molecules made real for biological studies	1
Stereoselective glycosylation strategies: readily available donors and synthetic applications	1
Catalytic alkynylations through the activation of C-N bonds	1
Review on asymmetric cycloaddition reactions at phosphorus (III) atom	1
Exceptional reactivity of the bridgehead amine on bicyclo[1.1.1]pentane	1
Advances in sustainable synthesis: the role of green solvents and biocatalysts	1
Preparation, structure, and reactivity of ortho-hydroxy-substituted aryliodonium salts, precursors to ortho-iodo-substituted diaryl ethers	1
Total synthesis of prenylated acylphloroglucinols: faberiones A, B, and E	1
Studying the formation and the final structure of AuPt bimetallic systems by cyclic voltammetry	1
Ammonium chloride mediated synthesis of 2-aryl-phthalazinone from O-formyl benzoic acid and in silico applications	1
Enone epoxidation using an isoindolinone hydroperoxide reagent inspired by a serendipitous oxazolidinone autooxidation	1
Synthesis and structural elucidation of 2,3-dimethylnaphthazarin ester derivatives	1
New efficient synthesis of bis-1,2,4-oxadiazole derivatives via subsequent Staudinger/aza-Wittig reaction	1
Generation and reversible cyclisation of furfurylic radicals	1
Steroidal lactams: a review	1
Photochemistry and structural complexity	1
Silver-catalyzed benzannulation, part 2: Total synthesis of (1R,4S,11S)-8,19-dihydroxyserrulat-14-ene and (1R,4S,11S)-8-hydroxyserrulat-14-en-19-oic acid	1
Three-component reaction of triphenylphosphine, dialkyl acetylenedicarboxylates, and 2-nitrocyclohexanone	1
Facile access to synthetically challenging arylnaphthalenes via photoenolization/Diels–Alder/aromatization one-pot sequence	1
Synthesis and biological activity of potential antiviral compounds through 1,3-dipolar cycloadditions; Part 1: general aspects and reactions of azides	1
Sterically controlled rhenium-catalyzed hydroxyl transposition	1
Synthesis of some novel coumarin-pyrazoline hybrid compounds from 6- and 8-acetyl-7-hydroxy-4-methylcoumarin	1
Advancing green chemistry: a surfactant-enabled approach for nitro reduction in aqueous medium	1
Synthesis of amino acid derived 2-methylene morpholines and 3,4-dihydro-2H-1,4-oxazines via ag (I) promoted intra-molecular cyclization of alkynols	1
Preyssler catalyst: a heterogeneous polyacidic catalyst for the efficient synthesis of diverse bioactive heterocyclic scaffolds	1
Synthesis of myrcene - isoprene copolymer	1
Identification of local benzenoid aromaticity and global aromaticity of polycyclic aromatic hydrocarbons (PAHs) via the corresponding ring current effects in 1H NMR spectroscopy	1