Manabu Abe
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View article: Photochemical and Thermal Concerted 1,3-Sigmatropic Rearrangements of a π-Extended Methylenecyclopropane
Photochemical and Thermal Concerted 1,3-Sigmatropic Rearrangements of a π-Extended Methylenecyclopropane Open
The reversible interconversion between methylenecyclopropane (MCP) and trimethylenemethane (TMM) has been extensively studied, yet precise control over their spin states remains challenging. Here, we designed and synthesized a propeller-sh…
View article: Front Cover: A Diverse Array of Catalytic Photoredox Reactions Based on Aluminum(III)‐Salen Complexes: Understanding the Enhancement of Catalytic Activity via Amine Association
Front Cover: A Diverse Array of Catalytic Photoredox Reactions Based on Aluminum(III)‐Salen Complexes: Understanding the Enhancement of Catalytic Activity via Amine Association Open
View article: Nitrogen‐Centered Radical‐Directed C(sp <sup>3</sup> )−H Amination and Aminoalkylation Using (Diarylmethylene)amino Benziodoxolones
Nitrogen‐Centered Radical‐Directed C(sp <sup>3</sup> )−H Amination and Aminoalkylation Using (Diarylmethylene)amino Benziodoxolones Open
Intermolecular C(sp 3 )−H functionalization via nitrogen‐centered radical‐directed 1,5‐hydrogen atom transfer (HAT) is a powerful strategy for rapidly constructing functionalized molecules. Despite the obvious potential, applying this appr…
View article: Photochemical and Thermal Concerted 1,3-Sigmatropic Rearrangements of a π-Extended Methylenecyclopropane
Photochemical and Thermal Concerted 1,3-Sigmatropic Rearrangements of a π-Extended Methylenecyclopropane Open
The reversible interconversion between methylenecyclopropane (MCP) and trimethylenemethane (TMM) has been extensively studied, yet precise control over their spin states remains challenging. Here, we designed and synthesized a propeller-sh…
View article: Photoallylation Mechanism of Dicyanobenzenes with Allyltrimethylsilane in Solution Investigated by Cold UV and IR Spectroscopy in the Gas Phase
Photoallylation Mechanism of Dicyanobenzenes with Allyltrimethylsilane in Solution Investigated by Cold UV and IR Spectroscopy in the Gas Phase Open
The photoallylation of three structural isomers of dicyanobenzene (DCB), 1,4‐DCB, 1,3‐DCB, and 1,2‐DCB, was investigated. Reactivity dependence on the relative position of the cyano groups is acknowledged; 1,3‐DCB exhibits lower reactivity…
View article: A Diverse Array of Catalytic Photoredox Reactions Based on Aluminum(III)‐Salen Complexes: Understanding the Enhancement of Catalytic Activity via Amine Association
A Diverse Array of Catalytic Photoredox Reactions Based on Aluminum(III)‐Salen Complexes: Understanding the Enhancement of Catalytic Activity via Amine Association Open
Since aluminum is an earth‐abundant and environmentally benign main‐group metal, the development of aluminum‐complex‐based photoredox catalysts remains a significant issue. Herein, we report aluminum(III)‐salen complexes (Al‐salens) as ver…
View article: Synthesis and Physical Properties of [ <i>n</i> ]Cycloparaphenylene Ketone ( <i>n</i> = 6, 7, 8, and 10)
Synthesis and Physical Properties of [ <i>n</i> ]Cycloparaphenylene Ketone ( <i>n</i> = 6, 7, 8, and 10) Open
[ n ]Cycloparaphenylene ketone 4 , [ n ]CPP‐CO, in which a carbonyl group is inserted into [ n ]CPP framework, with n = 6, 7, 8, and 10, was synthesized by a coupling reaction between a CPP precursor and a ketone unit, followed by reductiv…
View article: Carbenes Embedded in Cyclic Paraphenylenes: Detection, Ground State Spin-multiplicity, and Möbius Topology
Carbenes Embedded in Cyclic Paraphenylenes: Detection, Ground State Spin-multiplicity, and Möbius Topology Open
Carbenes, which are divalent carbon species, have attracted significant research interest due to their ability to form two new bonds, as well as their potential applications as ligands in catalysis and in the development of magnetic materi…
View article: Design, Synthesis, and Biological Evaluation of BODIPY-Caged Resiquimod as a Dual-Acting Phototherapeutic
Design, Synthesis, and Biological Evaluation of BODIPY-Caged Resiquimod as a Dual-Acting Phototherapeutic Open
Resiquimod, an imidazoquinoline scaffold, exhibits potent immunotherapeutic activity but is associated with off-target effects, limiting its clinical utility. To address this limitation, we developed a novel BODIPY-caged resiquimod that is…
View article: Photochemical Transformations of Glycosyl Bromides in the Presence of Amines
Photochemical Transformations of Glycosyl Bromides in the Presence of Amines Open
View article: Photochemical Transformations of Glycosyl Bromides in the Presence of Amines
Photochemical Transformations of Glycosyl Bromides in the Presence of Amines Open
View article: Photo- and Ca2+- induced acceleration of uncaging process from hemiacetal intermediate formed in the photolysis of an o-nitrobenzyl type of photoremovable protecting group (photocage)
Photo- and Ca2+- induced acceleration of uncaging process from hemiacetal intermediate formed in the photolysis of an o-nitrobenzyl type of photoremovable protecting group (photocage) Open
View article: Impact of Transition-State Aromaticity on Selective Radical–Radical Coupling of Triarylimidazolyl Radicals
Impact of Transition-State Aromaticity on Selective Radical–Radical Coupling of Triarylimidazolyl Radicals Open
Radical coupling reactions are generally known to have a low selectivity due to the high reactivity of radicals. In this study, high regio and substrate selectivity was discovered in the dimerization of triarylimidazolyl radicals (TAIR<…
View article: Publisher Correction: Design and synthesis of a 2,5-Diarylthiophene chromophore for enhanced near-infrared two-photon uncaging efficiency of calcium ions
Publisher Correction: Design and synthesis of a 2,5-Diarylthiophene chromophore for enhanced near-infrared two-photon uncaging efficiency of calcium ions Open
View article: Design and synthesis of a 2,5-Diarylthiophene chromophore for enhanced near-infrared two-photon uncaging efficiency of calcium ions
Design and synthesis of a 2,5-Diarylthiophene chromophore for enhanced near-infrared two-photon uncaging efficiency of calcium ions Open
The design and synthesis of two-photon-responsive chromophores have recently garnered significant attention owing to their potential applications in materials and life sciences. In this study, a novel π-conjugated system, 2-dimethylaminoph…
View article: Molecular engineering of coumarins for enhanced 2-photon absorption property
Molecular engineering of coumarins for enhanced 2-photon absorption property Open
A series of coumarin-based quadrupolar and octupolar derivatives containing electron-donating substituents (carbazole or diphenylamine groups) were synthesized. Their photophysical properties were explored in different organic solvents (to…
View article: Study on factors affecting quantum yield for the design of improved ortho-nitrobenzyl photoremovable protecting groups
Study on factors affecting quantum yield for the design of improved ortho-nitrobenzyl photoremovable protecting groups Open
The use of photoremovable protecting groups (PPGs) for the protection and deprotection of biologically active substances has become instrumental in elucidating functional mechanisms in cells. However, the development of chromophores respon…
View article: Sulfur atom effect on the photochemical release of benzylamine from caged amines
Sulfur atom effect on the photochemical release of benzylamine from caged amines Open
Carbamate linkers are commonly used to attach photolabile protecting groups (PPGs) to amine functional groups. However, the release of amines from the carbamate linkage has low photochemical quantum yields because of the low leaving abilit…
View article: SGLT2 inhibition eliminates senescent cells and alleviates pathological aging
SGLT2 inhibition eliminates senescent cells and alleviates pathological aging Open
View article: Innentitelbild: Temporal‐Focusing Multiphoton Excitation Single‐Molecule Localization Microscopy Using Spontaneously Blinking Fluorophores (Angew. Chem. 27/2024)
Innentitelbild: Temporal‐Focusing Multiphoton Excitation Single‐Molecule Localization Microscopy Using Spontaneously Blinking Fluorophores (Angew. Chem. 27/2024) Open
Single-molecule localization microscopy with temporal-focusing multiphoton excitation achieves wide-field and axially confined two-photon excitation of spontaneously blinking fluorophores, as reported by Fan-Ching Chien et al. in their Res…
View article: Inside Cover: Temporal‐Focusing Multiphoton Excitation Single‐Molecule Localization Microscopy Using Spontaneously Blinking Fluorophores (Angew. Chem. Int. Ed. 27/2024)
Inside Cover: Temporal‐Focusing Multiphoton Excitation Single‐Molecule Localization Microscopy Using Spontaneously Blinking Fluorophores (Angew. Chem. Int. Ed. 27/2024) Open
Single-molecule localization microscopy with temporal-focusing multiphoton excitation achieves wide-field and axially confined two-photon excitation of spontaneously blinking fluorophores, as reported by Fan-Ching Chien et al. in their Res…
View article: Optochemical control of slow-wave sleep in the nucleus accumbens of male mice by a photoactivatable allosteric modulator of adenosine A2A receptors
Optochemical control of slow-wave sleep in the nucleus accumbens of male mice by a photoactivatable allosteric modulator of adenosine A2A receptors Open
View article: Introduction: Persistent and Stable Organic Radicals
Introduction: Persistent and Stable Organic Radicals Open
ADVERTISEMENT RETURN TO ISSUEEditorialNEXTIntroduction: Persistent and Stable Organic RadicalsTakashi Kubo*Takashi KuboDepartment of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan*[email protected]…
View article: Sequential C−F Bond Transformation of the Difluoromethylene Unit in Perfluoroalkyl Groups: A Combination of Fine‐Tuned Phenothiazine Photoredox Catalyst and Lewis Acid
Sequential C−F Bond Transformation of the Difluoromethylene Unit in Perfluoroalkyl Groups: A Combination of Fine‐Tuned Phenothiazine Photoredox Catalyst and Lewis Acid Open
A sequential process via photoredox catalysis and Lewis acid mediation for C−F bond transformation of the CF 2 unit in perfluoroalkyl groups has been achieved to transform perfluoroalkylarenes into complex fluoroalkylated compounds. A phen…
View article: Formation of Sterically Congested C−N Bonds by Electrochemical Reductive Coupling of Amines and α‐Bromocarboxamides
Formation of Sterically Congested C−N Bonds by Electrochemical Reductive Coupling of Amines and α‐Bromocarboxamides Open
Nucleophilic substitution of α‐bromocarboxamide with amines have been demonstrated to synthesize sterically congested C−N bonds. Electrochemical reductive coupling is an efficient route to access hindered amino acid derivatives possessing …
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Cover Image Open
View article: Substituent Effects on the Electronic Ground State (Singlet <i>versus</i> Triplet) of Indenyl Cations: DFT and CASPT2 Studies
Substituent Effects on the Electronic Ground State (Singlet <i>versus</i> Triplet) of Indenyl Cations: DFT and CASPT2 Studies Open
The electronic ground states of cations (singlet versus triplet) attract significant attention in the discovery of novel carbocation chemistry. Although the cyclopentadienyl cation exhibits a triplet ground state because of the antiaromati…
View article: CCDC 2286657: Experimental Crystal Structure Determination
CCDC 2286657: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2286656: Experimental Crystal Structure Determination
CCDC 2286656: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2286658: Experimental Crystal Structure Determination
CCDC 2286658: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …