OOIR: Observatory of International Research

Papers

(The H4-Index of Organic Chemistry Frontiers is 42. 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 2020-04-01 to 2024-04-01.)

Article	Citations
Stereoselective synthesis and applications of spirocyclic oxindoles	165
Recent advances in multi-component reactions and their mechanistic insights: a triennium review	165
Recent advances in organocatalytic asymmetric multicomponent cascade reactions for enantioselective synthesis of spirooxindoles	126
Recent advance in the C–F bond functionalization of trifluoromethyl-containing compounds	121
Recent advances in transition metal-catalyzed olefinic C–H functionalization	116
Palladium catalyzed C–C and C–N bond forming reactions: an update on the synthesis of pharmaceuticals from 2015–2020	99
Recent advances in cascade radical cyclization of radical acceptors for the synthesis of carbo- and heterocycles	98
Recent advances in sustainable synthesis of N-heterocycles following acceptorless dehydrogenative coupling protocol using alcohols	92
Recent developments in the difunctionalization of alkenes with C–N bond formation	86
Advances in organocatalytic asymmetric reactions of vinylindoles: powerful access to enantioenriched indole derivatives	82
Hole-mediated photoredox catalysis: tris(p-substituted)biarylaminium radical cations as tunable, precomplexing and potent photooxidants	75
Photochemical and electrochemical strategies in C–F bond activation and functionalization	74
Nitriles as radical acceptors in radical cascade reactions	71
Recent advances in electrochemically driven radical fluorination and fluoroalkylation	69
Fluorination and fluoroalkylation of alkenes/alkynes to construct fluoro-containing heterocycles	67
Recent advances on transition-metal-catalysed asymmetric reductive amination	66
Recent advances in hydride transfer-involved C(sp³)–H activation reactions	66
Visible light-mediated applications of methylene blue in organic synthesis	64
Recent advances in annulation reactions based on zwitterionic π-allyl palladium and propargyl palladium complexes	63
Catalytic asymmetric synthesis of monofluoroalkenes and gem-difluoroalkenes: advances and perspectives	63
Green strategies for transition metal-catalyzed C–H activation in molecular syntheses	60
Recent advances in visible-light photocatalytic deuteration reactions	58
Chemoselective hydroborative reduction of nitro motifs using a transition-metal-free catalyst	54
Rh^III-Catalyzed formal [5 + 1] cyclization of 2-pyrrolyl/indolylanilines using vinylene carbonate as a C1 synthon	54
Recent advances in the electrochemical generation of 1,3-dicarbonyl radicals from C–H bonds	54

State-of-the-art palladium-catalyzed alkoxycarbonylations	53
Generation of azolium dienolates as versatile nucleophilic synthonsvia N-heterocyclic carbene catalysis	52
Benzannulation strategies for the synthesis of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines	52
Unravelling nitrene chemistry from acyclic precursors: recent advances and challenges	52
Cycloaddition of CO₂ to epoxides by highly nucleophilic 4-aminopyridines: establishing a relationship between carbon basicity and catalytic performance by experimental and DFT investigation	50
Visible-light-induced metal-free cascade cyclization of N-arylpropiolamides to 3-phosphorylated, trifluoromethylated and thiocyanated azaspiro[4.5]trienones	50
The Ugi three-component reaction and its variants	48
Recent progress in the total synthesis of pyrrole-containing natural products (2011–2020)	47
Visible light photocatalysis in the synthesis of pharmaceutically relevant heterocyclic scaffolds	47
Recent advances in the synthesis and reactivity of quinoxaline	46
Recent advances in the functionalization of saturated cyclic amines	46
Recent advances in the asymmetric transformations of achiral cyclohexadienones	45
Recent advances in photo- and electro-enabled radical silylation	45
Recent advances in transition-metal-free trifluoromethylation with Togni's reagents	45
The oxa-Michael reaction in the synthesis of 5- and 6-membered oxygen-containing heterocycles	44
Structural characterisation of natural products by means of quantum chemical calculations of NMR parameters: new insights	44
Recent advances of Ritter reaction and its synthetic applications	43