Results 41 to 50 of about 319 (90)

Thioxanthone: A Benchmark Photocatalyst for Organic Synthesis

open access: yesChemCatChem, Volume 17, Issue 16, August 18, 2025.
Thioxanthone is a highly versatile and effective organocatalyst for photochemical applications, with its low‐toxicity, metal‐free structure driving growing interest in sustainable photocatalysis. Building on our previous 2021 review, this update covers advances from 2021–2025 in thioxanthone‐based synthetic organic photochemistry – excluding ...
Vera P. Demertzidou   +2 more
wiley   +1 more source

Catalyst-Free Regioselective C‑3 Thiocyanation of Imidazopyridines

open access: yes, 2015
A direct and straightforward approach for highly regioselective thiocyanation of imidazoheterocycles through sp2 C–H functionalization has been realized at room temperature.
Daoshan Yang (734863)   +7 more
core   +1 more source

Electrochemical Chemo‐ and Regioselective Heterofunctionalization of Tropones via C(sp2)H Derivatization

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 14, July 29, 2025.
Simple and selective. The electrochemical heterofunctionalization of activated tropones is achieved using readily available inorganic salts. A theoretical model, based on cyclic voltammetry and quantum chemistry calculations, predicts both reactivity trends and site selectivity.
Mauro Garbini   +8 more
wiley   +1 more source

Selectivity in the thiocyanation of 3-alkylindoles: an unexpectedly easy access to 2-isothiocyano derivatives

open access: yes, 1990
Reaction of anodically generated thiocyanogen (NaSCN, LiClO4, MeCN, Pt, 0.9V vs SCE) with 3-alkylsubstituted indoles results preferentially in isothiocyanation at the indole 2-position rather than in the expected ...
B. Vodopivec   +13 more
core   +1 more source

Chemically engineered essential oils prepared through thiocyanation under solvent-free conditions: chemical and bioactivity alteration

open access: yesNatural Products and Bioprospecting
The generation of chemically engineered essential oils (CEEOs) prepared from bi-heteroatomic reactions using ammonium thiocyanate as a source of bioactive compounds is described.
Liz E. Lescano   +2 more
doaj   +1 more source

Designing Enzymatic Reactivity with an Expanded Palette

open access: yesChemBioChem, Volume 26, Issue 11, June 3, 2025.
Innovation in biocatalysis is rapidly increasingly the diversity of catalytic reactivity that can be mediated by enzymes, addressing a key bottleneck for their widespread adoption in industrial chemical synthesis. A key approach to this is building enzymes with unnatural catalytic components that provide an expanded palette with new possibilities for ...
Reuben B. Leveson‐Gower
wiley   +1 more source

A rapid, mild, and efficient method for C-5 iodination/thiocyanation of 2-aminothiazoles

open access: yes, 2016
An efficient, green, rapid multitasking protocol for the selective C-5 substitution of 2-aminothiazole using iodic acid and aqueous PEG-400 was developed. The method found suitable for C-5 substitution i.e.
Ajay N. Ambhore (2852873)   +6 more
core   +1 more source

Molecular Engineering for Enhancing the Dielectric and Optoelectronic Properties of Antimony Corroles

open access: yesSmall Science, Volume 5, Issue 6, June 2025.
Molecular engineering of antimony corroles with various β‐substituents and the ability to modulate the oxidation state of the metal ion is employed to demonstrate exceptional optoelectronic properties. The antimony(V) corrole with SCN substituents shows enhanced charge carrier mobility, a high dielectric constant, and a broad absorption range ...
Tanmoy Pain   +7 more
wiley   +1 more source

Iodine/MeOH: a novel and efficient reagent system for thiocyanation of aromatics and heteroaromatics

open access: yes, 2004
Indoles, pyrroles, oxindoles and aromatic amino compounds undergo smooth thiocyanation with ammonium thiocyanate in the presence of molecular iodine in methanol under mild conditions to afford the corresponding 3-indolyl, 2-pyrrolyl and 4-aryl ...
Shubashree, S.   +3 more
core   +1 more source

Transition Metal‐Promoted Direct CS and CSe Bond Formation from Csp3H Bonds

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 20, May 28, 2025.
This review summarizes the significant advancements in transition metal‐catalyzed direct chalcogenylation of Csp3H bonds over the past decade (2014–2024). The discussion is organized by transition metal catalysts, with particular emphasis on mechanistic insights of these transformations.
Douglas B. Paixão   +7 more
wiley   +1 more source

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