OOIR: Observatory of International Research

Papers

(The H4-Index of Organic Chemistry Frontiers is 48. 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 2020-11-01 to 2024-11-01.)

Article	Citations
Recent advances in multi-component reactions and their mechanistic insights: a triennium review	217
Stereoselective synthesis and applications of spirocyclic oxindoles	210
Recent advances in organocatalytic asymmetric multicomponent cascade reactions for enantioselective synthesis of spirooxindoles	149
Recent advance in the C–F bond functionalization of trifluoromethyl-containing compounds	136
Recent advances in cascade radical cyclization of radical acceptors for the synthesis of carbo- and heterocycles	128
Recent advances in transition metal-catalyzed olefinic C–H functionalization	125
Recent advances in sustainable synthesis of N-heterocycles following acceptorless dehydrogenative coupling protocol using alcohols	115
Palladium catalyzed C–C and C–N bond forming reactions: an update on the synthesis of pharmaceuticals from 2015–2020	113
Recent developments in the difunctionalization of alkenes with C–N bond formation	107
Photochemical and electrochemical strategies in C–F bond activation and functionalization	92
Hole-mediated photoredox catalysis: tris(p-substituted)biarylaminium radical cations as tunable, precomplexing and potent photooxidants	92
Advances in organocatalytic asymmetric reactions of vinylindoles: powerful access to enantioenriched indole derivatives	90
Nitriles as radical acceptors in radical cascade reactions	85
Visible light-mediated applications of methylene blue in organic synthesis	79
Recent advances on transition-metal-catalysed asymmetric reductive amination	79
Recent advances in hydride transfer-involved C(sp³)–H activation reactions	79
Fluorination and fluoroalkylation of alkenes/alkynes to construct fluoro-containing heterocycles	75
Recent advances in electrochemically driven radical fluorination and fluoroalkylation	74
Recent advances in visible-light photocatalytic deuteration reactions	72
Recent advances in annulation reactions based on zwitterionic π-allyl palladium and propargyl palladium complexes	71
Catalytic asymmetric synthesis of monofluoroalkenes and gem-difluoroalkenes: advances and perspectives	70
Recent advances in the electrochemical generation of 1,3-dicarbonyl radicals from C–H bonds	70
Green strategies for transition metal-catalyzed C–H activation in molecular syntheses	68
Benzannulation strategies for the synthesis of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines	67
State-of-the-art palladium-catalyzed alkoxycarbonylations	63

Visible light photocatalysis in the synthesis of pharmaceutically relevant heterocyclic scaffolds	63
Recent progress in the total synthesis of pyrrole-containing natural products (2011–2020)	60
Unravelling nitrene chemistry from acyclic precursors: recent advances and challenges	60
Chemoselective hydroborative reduction of nitro motifs using a transition-metal-free catalyst	60
Rh^III-Catalyzed formal [5 + 1] cyclization of 2-pyrrolyl/indolylanilines using vinylene carbonate as a C1 synthon	58
The Ugi three-component reaction and its variants	57
Cycloaddition of CO₂ to epoxides by highly nucleophilic 4-aminopyridines: establishing a relationship between carbon basicity and catalytic performance by experimental and DFT investigation	56
Recent advances in the synthesis and reactivity of quinoxaline	56
Generation of azolium dienolates as versatile nucleophilic synthonsvia N-heterocyclic carbene catalysis	56
Recent advances in the asymmetric transformations of achiral cyclohexadienones	55
Recent advances in the functionalization of saturated cyclic amines	55
Recent advances in the direct transformation of propargylic alcohols to allenes	54
Recent advances of Ritter reaction and its synthetic applications	53
Visible-light-induced metal-free cascade cyclization of N-arylpropiolamides to 3-phosphorylated, trifluoromethylated and thiocyanated azaspiro[4.5]trienones	53
Recent advances in transition-metal-free trifluoromethylation with Togni's reagents	53
Recent developments on 1,2-difunctionalization and hydrofunctionalization of unactivated alkenes and alkynes involving C–S bond formation	53
State of knowledge in photoredox-catalysed direct difluoromethylation	52
Recent advances in quinazolinones as an emerging molecular platform for luminescent materials and bioimaging	52
Recent advances in photo- and electro-enabled radical silylation	52
The oxa-Michael reaction in the synthesis of 5- and 6-membered oxygen-containing heterocycles	50
Photo-induced transition-metal and external photosensitizer-free organic reactions	49
Recent advances in transition metal-catalyzed heteroannulative difunctionalization of alkenes via C–H activation for the synthesis of heterocycles	48
Structural characterisation of natural products by means of quantum chemical calculations of NMR parameters: new insights	48