Themed collection 2025 Organic Chemistry Frontiers Review-type Articles

Advancements and perspectives toward radical Truce–Smiles-type rearrangement
The Truce–Smiles rearrangement is a powerful method for functionalizing aromatic compounds, enabling the synthesis of various (hetero)aromatic groups. This work summarizes recent advancements in this area.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00360A
Visible light-mediated halofunctionalization of alkenes for the synthesis of vicinally functionalized organohalides
This review summarizes recent achievements in photosynthesis of vicinally functionalized organohalides through the halofunctionalization of alkenes.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00439J
Recent advances in repurposing natural enzymes for new-to-nature asymmetric photobiotransformations
Photobiocatalysis combines the advantages of photocatalytic and enzymatic processes, enabling diverse non-natural asymmetric transformations. We highlight recent advances in asymmetric photobiocatalysis categorized by light-enzyme coupling modes.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00470E
Photo and earth-abundant metal dual catalysis in organic synthesis
This review summarizes the latest research progress on photocatalytic reactions involving typical Sc, Ti, V, Cr, Mn, Fe, Co, Ni, and Cu metal catalysts, mainly focusing on the role of metals and light in the reaction process.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00102A
Recent advances in organocatalytic asymmetric multicomponent reactions
Organocatalysis has emerged as a powerful synthetic platform for classical asymmetric multicomponent reactions, demonstrating remarkable versatility in constructing diverse molecular architectures with precise stereochemical induction.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00347D
Photochemical generation of heteroatom (N, Si, B) or carbon radicals leveraging preinstalled carboxylic acids
This review provides an overview of recent advancements in generating N, Si, B, and C radicals through the decarboxylation of preinstalled carboxyl substrates under visible light catalysis.
Org. Chem. Front., 2025,12, 2838-2859
https://doi.org/10.1039/D5QO00036J
Polyfluorinated reagents for peptide stapling
Fluorinated reagents have emerged as a valuable tool in peptide chemistry. This review summarizes recent advances in polyfluorinated reagents for peptide stapling, exploring their design principles, reaction mechanisms, and biological applications.
Org. Chem. Front., 2025,12, 2777-2789
https://doi.org/10.1039/D5QO00112A

AI molecular catalysis: where are we now?
Artificial intelligence (AI) is transforming molecular catalysis by addressing long-standing challenges in retrosynthetic design, catalyst design, reaction development, and autonomous experimentation.
Org. Chem. Front., 2025,12, 2759-2776
https://doi.org/10.1039/D4QO02363C
Advances in the synthesis of indolizines and their π-expanded analogues: update 2016–2024
Developments in the synthesis of indolizines during the last decade are reviewed, with special emphasis given to strategies relying on pyrrole derivatives and on π-expanded systems.
Org. Chem. Front., 2025,12, 2860-2907
https://doi.org/10.1039/D4QO02082K
UV/visible light-promoted external photocatalyst-free transformations: A Decade's Journey of N-heterocycles and their functionalisation
We have provided a comprehensive analysis of the construction of N-containing heterocyclic compounds and their functionalization without the use of external photocatalysts, under UV/visible-light exposure in different conditions.
Org. Chem. Front., 2025,12, 2790-2837
https://doi.org/10.1039/D4QO02202E
Steroidal sapogenin-derived chirons: underdeveloped building blocks with methyl-branched chiral centers
This review summarizes the application of steroidal sapogenin-derived lactones with methyl-branched chiral centers in the synthesis of insect pheromones, pharmaceuticals and complex natural products.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00090D
Recent developments in organic synthesis for constructing carbon frameworks using transposition strategies
Transposition of molecular fragments enabling strategic bond disconnection within carbon frameworks.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00163C
Three-component, stereoselective C–N bond forming alkene difunctionalization
This review discusses emerging strategies in three-component, stereoselective C–N bond-forming alkene difunctionalization, emphasizing mechanistic innovations and their impact on synthetic organic chemistry.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00160A

EDA complex photochemistry as a strategy for C–S bond formation
Recent advances in the photochemistry of EDA complexes: a practical and modern strategy for efficient carbon–sulfur bond formation in organic synthesis.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00258C
Recent advances in the diverse transformations of trifluoromethyl alkenes
In this paper, the diverse transformations of α-trifluoromethyl olefins, mainly including difunctionalization of α-trifluoromethyl olefins, defluorination functionalization to gem-difluoroalkenes, and other types, are described.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00306G
Achievements in photocatalytic Povarov-type reactions: a key step in green diversification of the quinoline chemical space
The advances in the Povarov reactions under visible-light conditions are highlighted, offering helpful guidance for selecting suitable synthetic protocols.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00099H

Update for oxidopyridinium cycloadditions and their synthetic applications: advances after Katritzky's pioneering studies
Katritzky's pioneering studies revealed the multifaceted cycloaddition reactivities of oxidopyridinium betaines. In this review, the follow-up research into oxidopyridinium cycloadditions and their applications are discussed.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00115C
Single-atom editing for the construction of boron-containing heterocycles
This review provides a detailed examination of methods for synthesizing boron compounds, focusing on the insertion of new atoms into boron heterocyclics, or inserting boron atoms into other heterocyclic frameworks.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00210A
Recent advances in hydrofunctionalisation of cyclopropenes via carbon–heteroatom bond formation
This review highlights recent advances in the hydrofunctionalisation of cyclopropenes through the formation of carbon–heteroatom bonds for the synthesis of polysubstituted cyclopropanes.
Org. Chem. Front., 2025,12, 2525-2551
https://doi.org/10.1039/D4QO02441A
Recent advances on electrocyclic reactions in complex natural product synthesis: an update
The recent advances on the application of electrocyclic reactions in the total synthesis of notable natural products are summarized.
Org. Chem. Front., 2025,12, 2415-2438
https://doi.org/10.1039/D4QO02276A
Organic reactions catalyzed by the Brønsted acid B(C6F5)3·H2O
This article reviews the organic reactions catalyzed by the Brønsted acid B(C6F5)3·H2O and their mechanisms, along with an outlook on its future catalytic prospects.
Org. Chem. Front., 2025,12, 2481-2498
https://doi.org/10.1039/D4QO02395A

Advances in synthetic strategies for two-dimensional conjugated polymers
This review covers synthetic approaches towards crystalline 2D conjugated polymers linked by imines, pyrazines, vinylenes, C–C, or imidazoles. It explores the interplay between structures and properties, highlighting their prospects in electronics.
Org. Chem. Front., 2025,12, 2457-2480
https://doi.org/10.1039/D4QO02211D
Recent progress in electrochemical rearrangement reactions
Electrochemical-mediated rearrangement has emerged as one of the most important research fields in organic chemistry. This review systematically summarizes the diverse transformations and applications of electrochemistry in rearrangement reactions.
Org. Chem. Front., 2025,12, 2499-2524
https://doi.org/10.1039/D4QO02437K
Total synthesis of cyclopropane-containing natural products: recent progress (2016–2024)
This review outlines recent progress in the total synthesis of cyclopropane-containing natural products, with a particular focus on the application of novel synthetic methodologies and tactics for assembling naturally occurring three-membered rings.
Org. Chem. Front., 2025,12, 2439-2456
https://doi.org/10.1039/D4QO02316A

Recent developments in alkene oxo-functionalization reactions governed by photoredox methods
This review summarizes the latest literature on photoredox alkene difunctionalization reactions, focusing on oxoalkylation and oxoarylation reactions, as well as CO/C–N, C
O/C–P, and C
O/C–O/S bond-forming procedures.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00236B
Cooperative iridium and organocatalysis: a new frontier in asymmetric chemistry
Cooperative iridium-organocatalysis has emerged as a valuable tool for producing biologically active chiral molecules from easily accessible starting materials by activating inert coupling partners in separate catalytic cycles.
Org. Chem. Front., 2025,12, 2025-2051
https://doi.org/10.1039/D4QO02430C
Recent advances in catalytic asymmetric reactions of Morita–Baylis–Hillman adducts
Morita–Baylis–Hillman adducts have become an efficient synthon for the construction of C–C or C–heteroatom bonds, and have been widely used in the asymmetric synthesis of various new optically pure compounds.
Org. Chem. Front., 2025,12, 2076-2130
https://doi.org/10.1039/D4QO02212B
Progress in the catalytic enantioselective construction of difluoroalkylated stereogenic centers
This review focuses on the progress in catalytic asymmetric difluoroalkylation to construction of difluoroalkylated stereogenic centers. Synthetic methods, active intermediates involved and asymmetric strategies applied were summarized.
Org. Chem. Front., 2025,12, 2052-2075
https://doi.org/10.1039/D4QO02309A
Asymmetric synthesis of chiral sp3-geminated borylstannyl, borylsilyl, and diboryl compounds
Chiral sp3-geminated bimetallic reagents based on B, Si, and Sn have drawn much attention due to their unique structure and reaction mode. This review summarizes the synthesis of nonracemic gem-borylstannyl, gem-borylsilyl, and gem-diboryl compounds.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00026B

Mechanophoric hydrogels: when mechanical stress produces useful responses
Mechanophoric hydrogels undergo visible color changes or alterations in optical properties in response to mechanical stimuli.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D4QO02060J
Recent advances in the synthesis of nitrogen heterocycles via Rh(III)-catalyzed chelation-assisted C–H activation/annulation with diazo compounds
The advancements in the synthesis of nitrogen-containing heterocycles via Rh(III)-catalyzed chelation-assisted tandem C–H activation/carbene insertion/annulation with diazo compounds as carbene precursors have been summarized.
Org. Chem. Front., 2025, Advance Article
https://doi.org/10.1039/D5QO00111K
Recent advances in enantioselective construction of C–N bonds involving radical intermediates
This review offers a comprehensive overview of recent advancements in the asymmetric construction of C–N bonds involving radical intermediates.
Org. Chem. Front., 2025,12, 1671-1694
https://doi.org/10.1039/D4QO02268H

Remodelling molecular frameworks via atom-level surgery: recent advances in skeletal editing of (hetero)cycles
Skeletal editing enables atom-level modifications to molecular skeletons. This review highlights advances in single-atom insertions, deletions, and transmutations in (hetero)cyclic systems, offering a comprehensive view on cutting-edge strategies.
Org. Chem. Front., 2025,12, 1633-1670
https://doi.org/10.1039/D4QO02157F
Nitrogen-containing polycyclic aromatic hydrocarbons (PAHs) with bowl-shaped structures: synthesis, architecture, and applications
This highlight discusses the synthesis strategies and topological features of nitrogen-containing bowl-shaped polycyclic aromatic hydrocarbons.
Org. Chem. Front., 2025,12, 1340-1354
https://doi.org/10.1039/D4QO01934B
About this collection
Critical reviews, highlights and chemistry frontiers articles published in Organic Chemistry Frontiers during 2025 are collated as below for the benefit of readers.