Results 11 to 20 of about 470 (176)

An Efficient and Eco-Friendly Procedure for Electrophilic Thiocyanation of Anilines and 1-(Substituted benzylidene)-2-phenyl Hydrazines

open access: yesChemistry
Thiocyanates form an important class of organic compounds commonly found in natural products that exhibit excellent antimicrobial activity. The electrophilic thiocyanation is one of the most effective methods of introducing a -SCN functional group to the
A. M. M. Mallikarjunaswamy   +4 more
doaj   +2 more sources

Regioselective C-H Thiocyanation of Arenes by Iron(III) Chloride Catalysis. [PDF]

open access: yesJ Org Chem, 2023
Aryl thiocyanates are flexible synthetic intermediates that can be used in the preparation of a diverse range of arene building blocks for medicinal chemistry.
Waddell LJN, Senkans MR, Sutherland A.
europepmc   +3 more sources

Imidazole Functionalized Magnetic Fe3O4 Nanoparticles a Highly Efficient and Reusable Brønsted Acid Catalyst for the Regioselective Thiocyanation of Aromatic and Heteroaromatic Compounds at Room Temperature in Water:Ethanol [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2015
The Magnetically recoverable Fe3O4 nanoparticle and the supported brønsted acidic ionic liquid 1-methyl-3-(3-trimethoxysilylpropyl) imidazolium hydrogen sulfate (Fe3O4-IL-HSO4) were synthesized and used as efficient magnetic catalysts for the ...
E. Rezaee Nezhad   +2 more
doaj   +1 more source

Cooperative Photometallobiocatalysis: Nonheme Fe Enzyme-Catalyzed Enantioconvergent Radical Decarboxylative Azidation, Thiocyanation, and Isocyanation of Redox-Active Esters. [PDF]

open access: yesAngew Chem Int Ed Engl
Through the directed evolution of an underexploited nonheme Fe extradiol dioxygenase, we developed a unified cooperative photobiocatalytic strategy to allow for three types of enantioconvergent radical transformations, including azidation, thiocyanation, and isocyanation.
Zhao LP   +8 more
europepmc   +3 more sources

Photoredox-Catalyzed Decarboxylative Bromination, Chlorination and Thiocyanation Using Inorganic Salts. [PDF]

open access: yesAngew Chem Int Ed Engl, 2023
Decarboxylative halogenations of alkyl carboxylic acids are highly valuable reactions for the synthesis of stucturally diverse alkyl halides. However, many reported protocols rely on stoichiometric strong oxidants or highly electrophilic halogenating ...
Wu J, Shu C, Li Z, Noble A, Aggarwal VK.
europepmc   +2 more sources

Cationic Selenuranes - Bench-Stable Sources of Se(III) Radicals. [PDF]

open access: yesAngew Chem Int Ed Engl
We present the synthesis of cationic selenurane salts via oligomerization of dibenzoselenophene‐based radical cations, allowing the formation of radicals without external activation. The salts can be prepared on a multigram scale and stored as solids for more than a month at ambient conditions.
Zhiliaev K   +4 more
europepmc   +3 more sources

Recent Synthetic Advances in C-H/N-H Functionalization of 1H-Pyrazoles: Diverse Strategies Across Variously Substituted Scaffolds. [PDF]

open access: yesChem Rec
Systematic overview of pyrazole functionalization reactions from C‐5 to N−H. It covers different strategies, from traditional cross‐coupling of prefunctionalized pyrazoles to more efficient direct functionalizations. This review briefly and systematically overviews C–H and N–H functionalization reactions of pyrazoles, aimed at creating new CC and C ...
Dzedulionytė Müldür K   +3 more
europepmc   +2 more sources

Photochemical Thiocyanation of Halobenzenes with Thiocyanate Anion [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1979
Abstract Halobenzenes having such an electrondonating group as amino, hydroxyl or methoxyl group at their para position were thiocyanated with sodium thiocyanate under irradiation. Also, the ring isomer of o-thiocyanatoaniline, 2-aminobenzothiazole, was obtained by the photoreaction of o-chloroaniline with sodium thiocyanate.
Kiyoko Fujiki   +2 more
openaire   +1 more source

Electrophilic Thiocyanato Reagent Assisted Oxa-Michael/Thiocyanation of ,-Unsaturated Ketones

open access: yes, 2021
A route for thiocyanation-functionalization of the electron-deficient CC double bond was developed. Regioselective thiocyanation-etherification of α,β-unsaturated ketones was achieved.
Zhenda Fu (11714059)   +7 more
core   +1 more source

Lewis Base/Brønsted Acid Cocatalysis for Thiocyanation of Amides and Thioamides

open access: yes, 2020
Lewis base/Brønsted acid cocatalysis for electrophilic thiocyanation of olefins is reported. Using a combination of triphenylphosphine selenide and diphenyl phosphate as a catalyst, a wide range of unsaturated amides and thioamides underwent ...
Arun Yadav (5044940)   +3 more
core   +2 more sources

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