Results 1 to 10 of about 158 (81)

Synthesis of 4-functionalized pyrazoles via oxidative thio- or selenocyanation mediated by PhICl2 and NH4SCN/KSeCN [PDF]

Beilstein Journal of Organic Chemistry
A series of 4-thio/seleno-cyanated pyrazoles was conveniently synthesized from 4-unsubstituted pyrazoles using NH4SCN/KSeCN as thio/selenocyanogen sources and PhICl2 as the hypervalent iodine oxidant.
Jialiang Wu, Haofeng Shi, Xuemin Li, Jiaxin He, Chen Zhang, Fengxia Sun, Yunfei Du   +6 more
doaj   +2 more sources

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

Molecules, 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, Vera L. Sigacheva, Anastasia S. Kudinova, Sergey V. Neverov, Vladimir A. Kokorekin, Vladimir A. Petrosyan   +5 more
doaj   +2 more sources

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

Molecules, 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, Sergey V. Neverov, Vera N. Kuzina, Vladimir A. Petrosyan   +3 more
doaj   +2 more sources

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

Natural 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, Mario O. Salazar, Ricardo L. E. Furlan   +2 more
doaj   +2 more sources

Mechanochemical Thiocyanation of Aryl Compounds via C–H Functionalization [PDF]

ACS Omega, 2020
Edson de Oliveira Lima Filho, Ivani Malvestiti   +1 more
doaj   +2 more sources

Pd‐Catalyzed Directed Thiocyanation Reaction by C−H Bond Activation [PDF]

Chemistry - A European Journal, 2020
Melissa Gao, Mu-Yi Chen, Xavier Pannecoucke   +2 more
exaly   +2 more sources

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

Journal 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, Lakshmaiah Sreerama, Esmail Vessally, Farnaz Behmagham   +3 more
doaj   +1 more source

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

Green 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, Zhenkang Ai, Xuemin Li, Sanqing Tao, Bingyue Zhao, Xiaofan Wang, Xinbo Wang, Yunfei Du   +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]

Journal 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

Thiocyanation of Pyrazoles Using KSCN/K2S2O8 Combination

SynOpen, 2018
A convenient and practical thiocyanation of pyrazoles is reported employing a combination of KSCN and K2S2O8 in dimethyl sulfoxide (DMSO). The salient features of the present reaction include environmentally benign reagents and solvents, and simple ...
T. Songsichan, P. Katrun, O. Khaikate, D. Soorukram, M. Pohmakotr, V. Reutrakul, C. Kuhakarn   +6 more
doaj   +1 more source