SCI时时刷

search
+
HfCl4-Phosphoric Acid Catalytic Reduction of in Situ Generated Carbocations with Hydrosilane: Facile Approaches to 2,4-Dihydrocyclopent[b]indoles
A binary-acid complex HfCl4/diphenyl phosphate PA could promote in situ generation of stabilized carbocation from γ-indoly...
Recent advancements in Ni/photoredox dual catalysis for the Csp3-Csp3 cross-coupling reactions
For the construction of Csp3-Csp3 bonds, the cross-coupling reactions in Ni/photoredox dual catalysis have recently achiev...
Facile synthesis of α-sulfonyl ketoximes from alkenes using sodium sulfinate and NaNO₂ in water
A novel synthesis method for α-sulfonyl ketoximes from alkenes, sodium sulfinate, and NaNO₂ in water has been introduced. ...
Rh-Catalyzed Asymmetric Allylation of tert-Butanesulfinamide
Chiral allylic tert-butanesulfinamides were developed as bidentate sulfur-olefin ligands for rhodium. Synthesis of such li...
Rational design of naphthoquinone-based antibacterial agents through iridium-catalyzed enantioselective β-allenylation of 2-hydroxynaphthoquinones
In the backdrop of established biological properties of 2-hydroxynaphthoquinone (lawsone) and related compounds, the ratio...
Remote C(sp3)−H heteroarylation of N-fluoroarylsulfonamides via a silyl radical process under visible light irradiation
An efficient method for heteroarylation of unactivated, aliphatic C(sp3)−H bonds has been developed using a novel, visible...
Nickel-Catalyzed Reductive Cross-Coupling of Monofluoroalkyl Triflates with Aryl Halides for Monofluoroalkylated Arenes
Here, we report a nickel-catalyzed reductive C(sp3)−C(sp2) cross-coupling of monofluoroalkyl triflates with aryl halides, ...
Photoinduced Regioselective Trifluoroalkylation of Ketene Dithioacetals with CF3SO2Na
Fluoroorganic chemistry continues to fascinate various areas of the pharmaceuticals, agrochemicals, and materials. The inc...
Iron-catalyzed cascade cyclization of diaryldiyn-3-ones with P(O)H compounds: a rapid method for accessing 10-phosphorylated benzo[b]fluorenones
A new inexpensive iron-catalyzed phosphination of diaryldiyn-3-ones under mild condition for the synthesis of 10-phosphory...
Two pyrene-based cagearene constitutional isomers: synthesis, separation, and host–guest chemistry
Herein we successfully synthesize two pyrene-based cagearene constitutional isomers and achieve their separation based on ...
Unprecedented Nor-seco-polycyclic Polyprenylated Acylphloroglucinols Counteract Myocardial Cell Injury via Activation of the Akt/mTOR Signaling Pathway
Hypermonols A–E (1–5), the highly modified nor-seco-polycyclic polyprenylated acylphloroglucinols, with an unprecedentedly...
Dinuclear Zinc Catalysis of a Kinetic Resolution Strategy of Distinguishing One Pair of Diastereoisomers From Multiple Stereoisomers
A new kinetic resolution strategy of distinguishing four stereoisomers is realized. The dinuclear zinc catalysts based on ...
Site-selective editing of carbohydrate scaffolds to access rare sugars enabled by photoinduced radical process
Rare sugars represent an important family of carbohydrates by serving as crucial intermediates in enzymatic pathyways asso...
X-ray Characterization of core-modified N-confused fused porphyrinogen and genesis of () (anti)Aromatic N-confused fused porphyrinoids
Rational synthesis, spectroscopic and solid-state structural isolation of an unprecedented core modified N-confused fused ...
Recent advances in post Ugi-4CR dearomatizations for constructing spiro heterocycles
The Ugi reaction has obtained broad interest due to mild reaction conditions and high variability. The versatile Ugi adduc...
Electrooxidative iridium-catalyzed sp2 C−H activation-annulation leading to cationic π-extended heteroaromatics
This study demonstrates an electrochemically driven, Ir(III)-catalyzed method for pyridine-, azo-, and purine-directed ole...
Photoredox/Cu dual catalyzed 1,4-cyanosulfonylation enabled by remote cyano migration
A photoredox/Cu dual catalyzed 1,4-cyanosulfonylation of NHPI esters with readily available sodium arylsulfinates has been...
A Ligand-assisted Manganese-enabled Direct C-H Difluoromethylation of Arenes
The incorporation of a difluoromethyl group within an aromatic ring is highly desirable. However, studies based on direct ...
Asymmetric Synthesis of 1H-pyrazolo[3,4-b]pyridine Analogues Catalyzed by Chiral-at-Metal Rh(III) Complexes
An efficient asymmetric Friedel-Craft-type alkylation /Cyclization of 5-aminopyrazoles with α,β-unsaturated 2-acyl imidazo...
Photoredox-Enabled Ring-Opening of Cyclobutanes via the Formation of a Carbon Radical
The high strain energy of cyclobutanes has been utilized for the selective ring-opening, enabling the synthesis of valuabl...
Total Synthesis of (‒)-Deglycocadambine
The first total synthesis of monoterpene indole alkaloid (–)-deglycocadambine is achieved in 12 steps with (+)-genipin as ...
Copper-Catalyzed Allenynylative C–P Couplings of Diynylic Acetates with Hydrophosphoryl Compounds Leading to Phosphorylated Allenynes
A highly efficient copper-catalyzed coupling reaction of diynylic acetates with hydrophosphoryl compounds is developed bas...
Base-promoted ring-opening/recyclization of naphthoquinones to access benzo[5,6][1,4]thiazino[4,3-b]isoquinoline-7,12-diones at room temperature
A base promoted nitrogen atom insertion into naphthoquinone rings to construct N-heterocycles has been described. This app...
Beyond conventional Brønsted acid catalysis: Leveraging the impact of charged moiety on the phenol toward the construction of julolidine units
In the advent of organocatalysis, the choice of chemical functionality and its mode of interaction with the substrate is v...
Photoinduced difunctionalization of unactivated olefins enabled by ligand-to-iron charge transfer and functional group migration strategies
The difunctionalization of olefins via radical-mediated functional group migration (FGM) strategy can simultaneously const...
Synthesis of Fluoro-Benzoxazepines via I(III)/BF3·Et2O-Enabled 1,2-Aryl Migration/Fluorination Cascade
A metal-free oxidative fluorination reaction of o-alkenyl aryl ureas to construct benzoxazepine skeleton was accomplished ...
Catalytic Asymmetric Formal (2 + 3) Cycloaddition Involving Methyl-Substituted 2-Indolylmethanols
A catalytic asymmetric formal (2 + 3) cycloaddition of methyl-substituted 2-indolylmethanols with 3-substituted-2-indolylm...
Metal-free C−H borylation of heterocycles by merging photoredox and hydrogen atom transfer catalysis
Reported herein is a method that merges organophotoredox and hydrogen atom transfer catalysis to enable the C−H borylation...
Dirhodium-Catalyzed One-Step Cascade Intermolecular 1,4-Diamination via Cyclopropanation
This work presents a novel dirhodium-catalyzed method for the conversion of aromatic hydrocarbons to 1,4-diamines using N-...
Pyridine-based tricarboxamides: complementary monomers for supramolecular copolymerization with C3-symmetric oligophenylenetricarboxamides
The supramolecular copolymerization of triangular-shaped oligophenylenetricarboxamides 1 with the electronically and geome...
阅读更多
format_indent_increase