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ISSN: 2666-5549

Transformation of ambient CO2 in air into cyclic carbonates mediated by a phosphorus-nitrogen PN3-pincer iron complex

The atom-economical reaction of carbon dioxide (CO2) with epoxides possesses the potential to utilize captured CO₂ for synthesizing useful chemicals. Among a wide range of metal complexes employed for...

Selective cleavage of Csp3–N bonds in aliphatic tertiary amines enabled by difluorocarbene to access esters and thioethers

Presented herein is a series of C–X (X ​= ​O, S) couplings for the synthesis of esters and thioethers via difluorocarbene-promoted selective Csp3–N bond cleavage between tertiary amines and carboxylic...

A water-soluble supermolecular cage for artificial light-harvesting nanoreactors

Two discrete octahedral metallo-supramolecular cages were designed and constructed by using truxene-based pyridine L with enPd(NO3)2 or enPt(NO3)2, followed by detailed NMR, MS, UV absorption, and fluorescence...

Chiral bis(imidazoline) NCN pincer iridium(III)-catalyzed enantioselective alkynylation of trifluoropyruvates with terminal alkynes

Readily prepared chiral bis(imidazoline) NCN pincer iridium(III) complexes have been developed as the new and highly stereoselective catalysts for the direct asymmetric addition of terminal alkynes...

Iron-catalyzed carbonylative synthesis of tert-alkyl thioesters

In the context of transition metal-catalyzed carbonylation reactions, iron-catalyzed carbonylative transformation retains considerable value due to its high abundance, affordability, and diverse catalytic...

Palladium-catalyzed halosulfonylation of alkynes with ionic liquid as the green solvent and halide sources

The first palladium-catalyzed halosulfonylation of alkynes with arylsulfonic acid under aerobic conditions was accomplished. This catalytic protocol provides a straightforward and effective synthetic...

Synthesis of nucleoside drugs for the treatment of HBV infection: An updated review

Hepatitis B virus (HBV) is a significant global health concern, characterized by its potential to cause acute and chronic liver diseases. Despite the availability of effective vaccines and treatments,...

Direct C(sp3)-H functionalization with thiosulfonates via photoredox catalysis

While C(sp3)-S bonds exist in many biologically active compounds, the direct catalytic C(sp3)-H thiolation remains elusive. Herein, we report a convenient and green C(sp3)-H thiolation approach mediated...

Chemo- and site-selective aerobic oxidation of methylbenzenes to aromatic aldehydes enabled by an Fe(III) photocatalyst

We have developed a chemo- and site-selective aerobic oxidation of methylbenzenes to aromatic aldehydes. It offers several advantages, including the use of an environmentally friendly catalyst (5 ​mol%...

Radical dehydroxylative C-glycosylation of 1-hydroxycarbohydrates enabled by photoredox catalysis

C-Glycosides, known for their superior in vivo stability compared to their O- and N-glycoside counterparts, have been widely explored as drug candidates and utilized in biological research. Traditional...

Synthesis of bridged bicyclic thiazine-2-thione and thiazole-2-thiones through DBU-promoted regioselective annulation of quinone monoacetals under mild conditions

The first regioselective [4 ​+ ​2] annulation reactions of quinone monoacetals with isothiocyanates and Na2S have been accomplished. This convenient and novel protocol involves the synthesis of valuable...

Recent progress in selective liquid-phase hydrogenation of furfural on heterogeneous Ni-containing catalysts

Lignocellulose biomass, without any doubts, is one of the most promising, and, therefore, one of the most studied sources for the production of biofuels, valuable chemicals and “green” solvents. Furfural...

Electrochemical selective deuterium labelling of N-heteroarenes

Hydrogen-deuterium exchange (HIE) reaction is the most direct way to achieve the deuterium labeling as there is no need for extra pre-functionalization. Herein, we report an electrochemical selective...

Transaminase catalyzed asymmetric synthesis of active pharmaceutical ingredients

Chiral amine molecules constitute vital components of pharmaceutical ingredients. Recent years have witnessed a growing focus on the efficient synthesis of chiral amines. Transaminases, as catalysts,...

Synthesis of naphtho[1,2-b]furan-2-carbaldehydes and naphtho[2,1-b]furan-2-carbaldehydes via electrocatalytic 3,3-rearrangement/cyclization of propargylic aryl ethers under mild conditions

An electrocatalytic 3,3-rearrangement/cyclization approach has been developed for the transformation of aryl-substituted propargylic aryl ethers to naphtho[1,2-b]furan-2-carbaldehyde and naphtho[2,1-b]furan-2-carbaldehyde...

Visible-light-driven multicomponent reactions: concurrent pyridylation and alkylation of styrenes

Given the prevalence of pyridines in pharmaceuticals, methods for regioselectively introducing functional groups to the pyridine ring offer a categorical yet sustainable challenge strategy for expanding...

Electrochemical amino- or methoxymethylation of weak nucleophiles with methoxamine hydrochloride

The in-situ generation of iminium ions from amines and aldehyde compounds, followed by nucleophilic attack (Mannich reaction), represents a powerful strategy for the formation of Mannich bases. However,...

A study on the synthesis of racemic Baloxavir Marboxil

A novel four-step procedure for the synthesis of fragment A is described, starting with a cheaper starting material 2,3-difluorotoluene. Compared with the previous methods, this is a relatively reasonable...

From amines to complex lactams: a unified photocatalysis strategy for γ-amino acids and bridged bicyclic scaffolds via amino radicals

A procedure for the synthesis of bridged bicyclic lactams has been developed via an unprecedented cascade of C‒C and C‒N bond formations, utilizing readily available amines. The intermolecular cyclization...

Shape-controlled palladium nanoparticles on polyaniline nanohelices with chirality continuum for tuneable photothermal response and enantioselective catalysis

The integration of chiral catalysts with circularly polarized light (CPL) for enantioselective catalysis is an emerging research direction. Herein, a series of cubic and icosahedral Pd nanoparticles...

Nickel-catalyzed construction of C(sp3)-C(sp3) bonds with alkyl halides and diazo compounds for accessing all-carbon quaternary centers

Transition-metal catalyzed formation of C–C bonds has emerged as an effective strategy for constructing all-carbon quaternary centers, which represent a persistent synthetic challenge in organic synthesis....

Skeletal editing of pyridine for ring transformations

The pyridine ring, functioning as a vital framework in numerous bioactive molecules, has recently witnessed significant advancements in precise skeletal editing, which has brought about a revolutionary...

Catalysis-free green synthesis of thiophenes and thioketones by one-pot method based on the resource utilization of SO2 in flue gas

Thiophenes and thioketones possess significant synthetic value due to their extensive pharmacological activities. However, the sulfur sources used in traditional methods for synthesizing these compounds...

TBADT/nickel co-catalyzed three-component radical acylarylation of alkenes with aldehydes and aryl iodides

Here we report a photo/nickel co-catalyzed three-component acylarylation of alkenes using aldehydes and aryl iodides. Tetrabutylammonium decatungstate (TBADT) serves as a hydrogen-atom-transfer (HAT)...

Practical access to axially chiral triazole phosphine oxides via enantioselective CuAAC reaction

The construction and application of axially biaryl N,P-ligands is of great importance in asymmetric catalysis. Herein, an enantioselective copper-catalyzed azide-alkyne cycloaddition (CuAAC) of prochiral...

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