Results 1 to 10 of about 830 (174)

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.
Senkans, Maisie R.   +2 more
core   +2 more sources

Electrooxidation Is a Promising Approach to Functionalization of Pyrazole-Type Compounds [PDF]

open access: yesMolecules, 2021
The review summarizes for the first time the poorly studied electrooxidative functionalization of pyrazole derivatives leading to the C–Cl, C–Br, C–I, C–S and N–N coupling products with applied properties.
Boris V. Lyalin   +5 more
doaj   +2 more sources

A New Method for the Synthesis of 3-Thiocyanatopyrazolo[1,5-a]pyrimidines [PDF]

open access: yesMolecules, 2020
In this article, we demonstrate how an original effective “metal-free” and “chromatography-free” route for the synthesis of 3-thiocyanatopyrazolo[1,5-a]pyrimidines has been developed.
Vladimir A. Kokorekin   +3 more
doaj   +2 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
core   +1 more source

Metal-Free Regioselective Thiocyanation of (Hetero) Aromatic C-H Bonds using Ammonium Thiocyanate: An Overview [PDF]

open access: yesJournal of Chemistry Letters, 2020
(Hetero)aryl thiocyanates have been extensively used as dyes, insecticides, vulcanization accelerators, and building blocks in the synthesis of diverse organosulfur compounds.
Soma Majedi   +3 more
doaj   +1 more source

Green metrics in mechanochemistry [PDF]

open access: yes, 2023
The development of new green methodologies and their broader adoption for promoting sustainable development in chemistry laboratories and industry play a significant role in society, due to the economic importance of chemistry and its widespread presence
Colacino E.   +5 more
core   +4 more sources

Immobilized Rose Bengal as Photocatalyst for Metal‐Free Thiocyanation of Azaheterocycles under Continuous Flow Conditions [PDF]

open access: yes, 2023
The immobilization of Rose Bengal onto Merrifield resin and its application in the light-driven metal-free thiocyanation of azaheterocycles in continuo were investigated.
Alessandra Puglisi   +4 more
core   +1 more source

Synthesis of 3-thiocyanated chromones via TCCA/NH4SCN-mediated cyclization/thiocyanation of alkynyl aryl ketones

open access: yesGreen Synthesis and Catalysis, 2022
3-Thiocyanated chromones was conveniently synthesized from alkynyl aryl ketones using commercially available, inexpensive trichloroisocyanuric acid (TCCA) as oxidant and NH4SCN as thiocyanato (SCN) source.
Jiaxi Xiao   +7 more
doaj   +1 more source

Novel one-pot process for the synthesis of ethyl 2-imino-4-methyl-2,3-dihydrothiazole-5-carboxylates [PDF]

open access: yesJournal of the Serbian Chemical Society, 2015
A facile one-pot two-step process for the synthesis of ethyl 2-imino-4-methyl-2,3-dihydrothiazole-5-carboxylates via the cyclocondensation of ethyl 2-thiocyanatoacetoacetate with a variety of hydrazine and hydrazide derivatives has been ...
Beyzaei Hamid, Aryan Reza, Moghadas Hadi
doaj   +1 more source

Remote functionalization by tandem radical chain reactions [PDF]

open access: yes, 1997
Normal radical relay chlorination of cholestan-3α-ol directed by an attached m-iodobenzoate ester group affords a 9α-chloro steroid, but when the same reaction is conducted in the presence of an excess of CBr4 the product is a 9α-bromo steroid ...
Wiedenfeld, David
core   +1 more source

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