OOIR: Observatory of International Research

Papers

(The TQCC of Helvetica Chimica Acta is 3. 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 2021-09-01 to 2025-09-01.)

Article	Citations
	152
	28
	27
	26
	25
Radical C4−H Arylation of 1,4‐Dihydropyridines with Cyanoarenes	18
Conrad A. P. Goodwin	16
Synthesis of Stereochemically Flexible Cyclic Biphenylbisphosphinite Ligands: Control of the Dynamics and Selectivity	16
Electric Dipole Polarizability Calculation for Periodic and Non‐Periodic Systems using Atomic‐Orbitals‐based Linear Response Theory	15
	14
Antibacterial, Antifungal and Molecular Docking Studies of N1‐Substituted 5‐Alkylsulfonyl Benzimidazole Derivatives	14
High trans‐2‐Decalones by Photoredox Catalyzed β‐Isomerization	14
Rhodium‐Catalyzed Tandem Addition–Cyclization of 1,5‐Enynes with Organoboronic Acids for the Synthesis of Alkylidene‐Cyclobutanes	13
New Selective Inhibitors of α‐Glucosidase for the Treatment of Type 2 Diabetes Mellitus	13
Endometriosis, the Silent Disease: Molecular Targets, Active Principles, and Drug Delivery Systems	12
New Phases in the Sc−Mn−Si and Sc−Mn−Al−Si Systems Through Molten Indium Flux Synthesis	12
Sascha Hoogendoorn	11
Fit‐for‐Purpose Synthesis of CDK2 Inhibitor GNE‐140	11
Tailoring the Hybridization Density of DNA Biosensors through Tunable Surface Functionalization	11
Total Synthesis of Salviachinensine A Using a Matteson Homologation Approach	11
Structure and Magnetic Properties of a Series of Uranium Bis‐Siloxide Complexes	10
Electronic Structures of Late versus Early Transition Metal Imido Complexes from ¹⁵N‐NMR Signatures	10
How Native Are Peptides After Activation by Collisions or Photons? A Gas‐Phase FRET Study	9
Bottom‐Up Synthesis, Dispersion and Properties of Rectangular‐Shaped Graphene Quantum Dots	9
Cover Picture: (Helv. Chim. Acta 4/2025)	9

Preparation and Characterization of N,N′‐Dialkyl‐1,3‐propanedialdiminium Chlorides, N,N′‐Dialkyl‐1,3‐propanedialdimines, and Lithium N,N′‐Dialkyl‐1,3‐propaned	8
Synthesis of the Multidrug Reversal Agent Ko143 and Its Parent Natural Product Fumitremorgin C	8
Conglomerate Aggregation of 7,12,17‐Trioxa[11]helicene into Homochiral Two‐Dimensional Crystals on the Cu(100) Surface	8
Solid‐State Confinement Effects in Selective exo‐H/D Exchange in the Rhodium σ‐Norbornane Complex [(Cy₂PCH₂CH₂PCy₂)Rh(η²:η²‐C	8
Cover Picture: (Helv. Chim. Acta 4/2022)	8
Does the Central Nitrogen Atom Make a Difference? A Comparison of Non‐Coordinating Pyridine and Benzene Spacers in Multitopic Ligands	7
Synthesis and Olfactory Properties of Lower‐Ring Homologues of the Linear Alicyclic Musk Romandolide	7
	7
Sustainable Twist – Towards Highly Atom Efficient Grignard Processes	7
Photoinduced Energy Transfer via an Atropisomeric Molecular Bridge	7
Playing with Protic Additives to Improve the Outcome of Rhodium‐Catalyzed Hydroarylation of Fullerene C₆₀ with Arylboronic Acids	7
Introduction for the Special Collection of Papers in the Honor of the President of the 57^th Bürgenstock Conference, Erick M. Carreira	6
Abstract Conformer Space	6
	6
Divergent Synthesis of Trifluoromethyl Ketones via Photoredox Activation of Halotrifluoroacetones	6
Synthesis and Properties of Cross‐Shaped Polycyclic Aromatic Hydrocarbons	6
	6
Visible‐Light Mediated Photooxidative Phosphorylation of Benzylamines: A Novel and Mild Pathway Towards α‐Aminophosphorus Compounds	5
Keteniminium Induced Dienone‐Phenol Rearrangement and Intramolecular 6‐endo‐dig Cyclization Cascade of Yne‐Dienone	5
A Special Issue Dedicated to Professor Andrea Vasella	5
A Special Issue Dedicated to Professor E. Peter Kündig	5
Improvements in the Synthesis of the Third‐Generation EGFR Inhibitor Osimertinib	5
An Unusual Fullerene–Carbene Adduct: Thermal Motion, Disorder, or Both?**	5
X‐Ray Crystallographic Studies of Quasi‐Racemates for Absolute Configuration Determinations	5
Catalytic C−H Activation via Four‐Membered Metallacycle Intermediate	5
Enantio‐ and Diastereoselective (Ipc)₂BOTf‐Mediated Aldol Reactions of Morpholine Carboxamides	5
The Relation between Nature and Stability of H₂‐Dissociating Sites and Propene Selectivity in Silica‐Supported (Ga,Al)₂O₃ Mixed Oxide Propane Dehydrogenation Catalysts	5
	5
Conversion of Isoxazoles to Functionalized Pyrrole and Isoquinoline Derivatives via ROCC Mechanism	5
Synthesizing Strained Azatriseptane Frameworks	5
A Telescopic, Scalable and Industrially Feasible Method for the Synthesis of Antidepressant Drug, Moclobemide	5
The Preparation and Resolution of Novel Axially Chiral Pyrazine‐Containing P,N Ligands for Asymmetric Catalysis and Their Application in Palladium‐Catalysed Allylic Substitution	5
Borotropy: The Mechanism of Boron Transfer Between Adjacent N‐Atoms of Pyrazol‐1‐yl Rings	5
Stability of Shielded Pentacenes under Ambient Conditions	5
Paramagnetic Oxygen as Contrast Agent for a Potential PDT Treatment MRI Monitoring	5
A Crystal Structure of an Oligoproline Hexamer with a Zig‐zag Arrangement	5
Synthesis and Reversible H₂ Activation by Coordinatively Unsaturated Rhodium NHC Complexes	5
Cover Picture: (Helv. Chim. Acta 9/2022)	4
Scalable Preparation of 1‐Aminoethyl Oxindoles From Simple Benzaldehydes	4
Simple Method for Transforming Liquid Silicone Oils Into High‐Quality Solid Silicone Resins	4
A Scalable and Chromatography‐Free Synthesis of N,N‐Bis(9,9‐dimethyl‐9H‐fluoren‐2‐yl)‐3′,3′,4′,7′‐tetramethyl‐2′,3′‐dihydrospiro[fluorene‐9,1′‐indene]‐2‐amine, a new Hole Transpor	4
Novel Synthetic Approach towards Amino‐Substituted Polycyclic Aromatic Hydrocarbons through Electrocyclization of Keteniminium Salts	4
Cover Picture: (Helv. Chim. Acta 1/2022)	4
Reversible Grafting in Surface Organometallic Chemistry with a Late Transition‐Metal Amidinate Precursor	4
Solution, Crystal and in Silico Structures of the Organometallic Vitamin B₁₂‐Derivative Acetylcobalamin and of its Novel Rhodium‐Analogue Acetylrhodibalamin	4
Sydnone‐Cyanines as Clickable Probes for Fluorescent Labelling	4
Martina Letizia Contente	4
	4
Spirocyclic Amide Acetal Synthesis by [CpRu]‐Catalyzed Condensations of α‐Diazo‐β‐Ketoesters with γ‐Lactams	4
9‐epi‐Artemisinin – How a Single Stereo Center Affects Chemical Reactivity under Reductive Conditions	3

Blacklight‐Induced Hydroxylation of Arylboronic Acids Leading to Hydroxyarenes Using Molecular Oxygen and Tetrabutylammonium Borohydride	3
Ross Milton	3
Synthesis of (Di)thiahelicenes and Dithiophenohelicenes by [2+2+2] Cycloisomerization of Alkynes	3
Transitions in Solvate Crystals of a Tetraaryladamantane	3
Ni‐Catalyzed Regioselective Cyclotrimerization of Internal Esteryl Alkynes towards Polysubstituted Benzene Rings	3
Structural Flexibility of Metal Chelate Complexes and Its Relation to Supramolecular Chemistry	3
	3
Cover Picture: (Helv. Chim. Acta 11/2021)	3
Gram‐Scale Synthesis, Isolation and Characterisation of Sodium Organometallics:nBuNa and NaTMP	3
Atomic Tailoring of Ubiquitin Side Chains Influences E2‐Mediated Ubiquitin Chain Formation	3
Cover Picture: (Helv. Chim. Acta 5/2025)	3
A Special Issue Dedicated to Professor Michael Grätzel	3
Cover Picture: (Helv. Chim. Acta 7/2024)	3
Cover Picture: (Helv. Chim. Acta 7/2022)	3
Photoinduced Electron Transfer in Clicked Ferrocene‐BODIPY‐Fullerene Conjugates	3
Elastomers Based on Polynorbornene with Polar Polysiloxane Brushes for Soft Transducer Applications	3
Cover Picture: (Helv. Chim. Acta 2/2022)	3
Synthesis of N‐Substituted Pyrrole‐2,5‐dicarboxylic Acids from Pyrroles	3
Light‐Driven Alkyne gem‐Hydrogenation: An Intramolecular Approach to Hoveyda–Grubbs Catalysts	3
Advances in the Synthesis of Heterocycles with Two and Three Heteroatoms using Hydrazonoyl Halides	3
Synthesis of α‐Fluoroketones from Carboxylic Acids via Decarboxylation of Fluorinated Malonates	3
Dynemicin A Derivatives as Potential Cancer Chemotherapeutics by Mutasynthesis	3
Total Synthesis of Tagitinins, Goyazensolide and Related Furanoheliangolides and their Covalent Interaction with Importin‐5 (IPO5)	3
Circularly Polarized Luminescence of [6]Helicenes through Excited‐State Intramolecular Proton Transfer	3
A Covalent Binding Mode of a Pyrazole‐Based CD38 Inhibitor	3
A Targeted Approach for the Metabolome Analysis of E. coli Biofilms	3
Cover Picture: (Helv. Chim. Acta 12/2021)	3
Ring Construction by 1,1‐Carboboration; Making Anthracene Derivatives from a Tetra(alkynyl)benzene	3
Cover Picture: (Helv. Chim. Acta 7/2023)	3
Pnictogen‐Bonding Catalysts, Compared to Tetrel‐Bonding Catalysts: More Than Just Weak Lewis Acids	3
Ionic Liquid Crystalline Calixarene with Photo‐Switchable Proton Conduction	3
Structural Insights into Electrophiles and Electrophilic Metabolites Sensing and Signaling: The Missing Information	3
The Role of Hydrazine in Colorimetric Probes Based on Ferrocene Derivative	3
Access to Enantioenriched 1,n‐Diols by Cu‐Catalyzed Enantioselective Protoboration and Hydroboration of Alkenyl Ethers	3
Hydroalkylation of 1,1‐Diarylalkenes Mediated by Magnesium Hydride in Ethereal Solvents	3
Stereoselective Synthesis and Biological Profile of All Stereoisomers of Lactam Analogues of Strigolactones GR24 and GR18	3
Halocyclopropenium‐Halide Halogen‐Bonded Ion Pairs and Their Hydrogen‐Bonded Halide Solvates	3