OOIR: Observatory of International Research

Papers

(The H4-Index of Organic Letters is 51. 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 2021-06-01 to 2025-06-01.)

Article	Citations
Versatile Access to Tetrasubstituted 2-Amidoacroleins through Formal Silylformylation of Ynamides	83
Diversity-Oriented Synthesis of ERα Modulators via Mitsunobu Macrocyclization	78
Synthesis of α-Aryl Secondary Amides via Nickel-Catalyzed Reductive Coupling of Redox-Active Esters	78
Visible-Light-Induced Selective α-Fluoroarylation of Secondary N-Alkyl Anilines with Polyfluoroarenes via Direct C–H/C–F Coupling	77
Deciphering the δ-Lactam Formation and lron-Reducing Activity of Spinactins from Saccharopolyspora spinosa	76
Oxoammonium Salt-Mediated Regioselective Vicinal Dioxidation of Alkenes: Relying on Transient and Persistent Nitroxides	75
Dioxygen-Triggered Oxosulfonylation/Sulfonylation of Terminal Olefins toward β-Keto Sulfones/Sulfones	74
Photocatalytic Strecker-Type Reaction for the Synthesis of Primary α-Aminonitriles	71
Visible-Light-Induced Difunctionalization of 3-Butenoic Acid with Bromodifluoromethyl Heteroarylsulfones	69
Relay Annulation of Ammonium Ylides with Oxindole-Derived α,β-Unsaturated Ketimines: Catalytic Construction of Spiro-polycyclic Oxindoles	69
Paired Electrocatalysis-Enabled Cross Coupling of Sulfinamides with Olefins toward the Synthesis of Vinyl Sulfoximines	69
Solvent-Driven Room-Temperature Curtius Rearrangements to Access Nucleotides Bearing Substituted Fused Pyridones	68
Nickel-Catalyzed Deaminative Allenylation of Amino Acid Derivatives: Catalytic Activity Enhanced by an Amide-Type NN₂ Pincer Ligand	68
Nonactivated Aziridine Synthesis by Intermolecular Polarity-Mismatched Carboamination of Unactivated Alkenes with Unactivated Alkyl Halides	68
Spirochrains A–D, Four Caged [5,6,5] Spirocyclic Amides from an Antarctic Fungus Aspergillus ochraceopetaliformis SCSIO 05702 with Anti-RSV Activities	67
Isolation and Bioinspired Total Synthesis of Rugosiformisin A, A Skeleton-Rearranged Abietane-Type Diterpenoid from Isodon rugosiformis	65
Issue Editorial Masthead	65
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Dinickel-Catalyzed Asymmetric Allylic Alkylation of Cyclic Ketones with Allylic Amine Derivatives	60

Issue Publication Information	60
Enantioselective Cobalt-Catalyzed Remote Hydroboration of Alkenylboronates	59
Asymmetric Synthesis of β-Aminoboronates via Copper-Catalyzed Reductive Coupling of Vinyl Boronates with Imines	59
Gold-Catalyzed Regioselective Synthesis of Crowded Cyclopentadienes by Migratory Cycloisomerization of Vinylallenes	58
Exo-Selective and Enantioselective Photoenolization/Diels–Alder Reaction	58
Stereoselective Double Spirocyclization of 2-Benzyl-3-alkynyl Chromone with Nitrone via Gold-Catalyzed Cascade Reactions	56
Free Amine-Directed Redox Neutral Ruthenium(II) Catalysis toward Regioselective Synthesis of Heterobiaryls	56
Base Metal-Controlled Chemodivergent Cyclization of Propargylamines for the Atom-Economic Synthesis of Nitrogen Heterocycles	56
Kinetic Resolution of Sulfinamides via Asymmetric N-Allylic Alkylation	55
Environmentally Friendly Synthesis of Highly Substituted Phenols Using Enallenoates and Grignard Reagents	55
Multiselective Diels–Alder Reaction of α-Arylacroleins Catalyzed by Boron Tribromide-Assisted Chiral Phosphoric Acids	55
Cope-Type Hydroamination of Vinylboronates	55
Tosylazide as N1-Synthon: Iron-Catalyzed Nitrogenative Dimerization of Indoles to p-Bisindolopyrazine Derivatives	54
Total Synthesis of the Phenolic Steroid Myrmenaphthol A	53
Correction to “Access to 6-Deoxy-heptose Constructs by One Carbon Homologation of Hexoses with Malononitrile: Divergent Synthesis of Campylobacter jejuni Strain 81-176 Capsular Trisaccharide Re	53
Sequential One-Pot Transformation to R–CF₂-Embedded 1,5-Diketones Enabled by Nickel: Access to 4-Perfluoroalkylpyridines	53
Photodissociation of the Product from a Transition-Metal Center Allows the Catalytic Cycle to Proceed: The Rhodium(I)-Catalyzed [2+2+1] Carbonylative Cycloaddition of Diynes	53
Total Synthesis of (±)-Furanether A	53
Domino Semipinacol/Iterative Aldol/Iso-Nazarov Cyclization to Triaryl-cyclopentenone: Enantioselective Synthesis of Combretastatin A-4 Analogues	53
DNA-Compatible Diversification of Indole π-Activated Alcohols via a Direct Dehydrative Coupling Strategy	52
Solid-Phase Total Synthesis of Plusbacin A₃	52
Palladium-Catalyzed Chemo- and Regiocontrolled Tandem Cyclization/Cross-Coupling of 2-Benzyl-3-alkynyl Chromones with Aryl Iodides for the Synthesis of 4H-Furo[3,2-c]chromenes and Xantho	52
Collective Syntheses of Corynanthe Alkaloids Based on a Chirality-Tunable Structure Unit	52
Computationally Assisted Analysis of NMR Chemical Shifts as a Tool in Conformational Analysis	52
Manipulating Crystal Packing and Self-Assembly by π-Extended and Isomeric Fused Strategies in Thiophene Ring-Terminated Polycyclic Aromatic Hydrocarbons	52
Synthesis of 1-Substituted Bicyclo[2.1.1]hexan-2-ones via a Sequential SmI₂-Mediated Pinacol Coupling and Acid-Catalyzed Pinacol Rearrangement Reaction	52
Palladium-Catalyzed Domino Conversion of Aryl–Thianthreniums with Anhydrides: Rapidly Building Highly Functionalized Fluorenones	51
Photochemical Organocatalytic Aerobic Cleavage of C═C Bonds Enabled by Charge-Transfer Complex Formation	51