Results 41 to 50 of about 33,950 (227)

Хлорфенолы в органическом синтезе [PDF]

, 2016
Received: 17.08.2016; accepted: 11.10.2016; published: 01.12.2016.Поступило: 17.08.2016; приянято: 11.10.2016; опубликовано: 01.12.2016.This article reviews the alternatives for modifications of p-chlorophenols, p-chloroanisoles with the formation of C-C,
Ivanova, E. A., Mitin, V. V., Morzherin, Yu. Yu., Prokhorova, P. E., Иванова, Е. А., Митин, В. В., Моржерин, Ю. Ю., Прохорова, П. Е.   +7 more
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Synthesis of Functionalized Thiophene Based Pyrazole Amides via Various Catalytic Approaches: Structural Features through Computational Applications and Nonlinear Optical Properties

Molecules, 2022
In the present study, pyrazole-thiophene-based amide derivatives were synthesized by different methodologies. Here, 5-Bromothiophene carboxylic acid (2) was reacted with substituted, unsubstituted, and protected pyrazole to synthesize the amide.
Iram Kanwal, Nasir Rasool, Syeda Huda Mehdi Zaidi, Zainul Amiruddin Zakaria, Muhammad Bilal, Muhammad Ali Hashmi, Adeel Mubarik, Gulraiz Ahmad, Syed Adnan Ali Shah   +8 more
doaj   +1 more source

Catalyst-Controlled Chemoselective Arylation of 2-Aminobenzimidazoles [PDF]

, 2012
What N would you like? The chemoselective and complementary Pd- and Cu-catalyzed N-arylation of 2-aminobenzimidazoles is described. Selective N-arylation of the amino group was achieved with a Pd-catalyzed method, while selective N-arylation of azole ...
Altman, Altman, Anderson, Antilla, Carpenter, Cee, Da Settimo, Deng, Evindar, Fagan, Fukuda, Hartwig, Huang, Iemura, Kiyomori, Klapars, Koizumi, Lan, Liang, Liu, Maiti, McGowan, Monnier, Murphy, Paget, Peterson, Shafir, Surry, Ueda, Ueda, Varming, Wan, Wang, Wu, Yin, Zhang, Zhong   +36 more
core   +1 more source

Gold-Catalyzed Direct Arylation [PDF]

, 2012
Gently Coupled Linked aryl rings are found in a broad range of commercial chemical products. Currently, the most versatile synthetic route to this motif involves cross-coupling of one ring with a halide substituent to another ring ...
Ball, L. T., Lloyd-jones, G. C., Russell, C. A.   +2 more
core   +1 more source

Electrochemical Arylation Reaction [PDF]

Chemical Reviews, 2018
Arylated products are found in various fields of chemistry and represent essential entities for many applications. Therefore, the formation of this structural feature represents a central issue of contemporary organic synthesis. By the action of electricity the necessity of leaving groups, metal catalysts, stoichiometric oxidizers, or reducing agents ...
Siegfried R. Waldvogel, Sebastian Lips, Maximilian Selt, Barbara Riehl, Christopher J. Kampf   +4 more
openaire   +2 more sources

Strategies Towards the Synthesis of N2-Substituted 1,2,3-Triazoles

Anais da Academia Brasileira de Ciências, 2019
The chemistry of 1,2,3-triazoles gained much attention since the discovery of the copper catalyzed Alkyne-azide cycloaddition (CuAAC) reaction which delivers exclusively the 1,4-regioisomer in high yields.
RODRIGO OCTÁVIO M.A. DE SOUZA, LEANDRO S. DE MARIZ E MIRANDA   +1 more
doaj   +1 more source

Synthesis of quaternary aryl phosphonium salts: photoredox-mediated phosphine arylation [PDF]

, 2016
We report a synthesis method for the construction of quaternary aryl phoshonium salts at ambient temperature. The regiospecific reaction invovles the coupling of phosphines with aryl radicals derived from diaryliodonium salts under photoredox ...
A. F. Fearnley, Bayne, Bayne, Bentrude, Cano-yelo, Cano-yelo, Caputo, Cassity, Coa, Dunn, Enders, Fañanás-Mastral, Fumagalli, Gerritsma, He, He, Heng, Hoffman, Horner, Hounjet, Hwang, J. An, Kalyani, Kampmeier, Liu, M. Jackson, Malmgren, Manabe, Marcoux, Marcoux, McNulty, McNulty, McNulty, McNulty, McNulty, McNulty, Merritt, Merzougui, Muneer, Neufeldt, P. Lindovska, Perez, Prier, Ptitsyna, Pérez, Pérez, R. M. Denton, Redmund, Reichl, Rideout, Rideout, Shirakawa, Shirakawa, Smith, Sundalam, Tappe, Tobisu, Tucker, vom Stein, Wang, Werner, Xi, Xiong, Xu, Yusubov, Zhdankin, Zhu   +66 more
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An Unexpected Reaction between Diaryliodonium Salts and DMSO

Organics, 2022
Diaryliodonium salts are useful arylating reagents that have been exploited widely. In this Communication, we demonstrate that heating diphenyliodonium triflate in the solvent DMSO leads to an unexpected arylation reaction.
Konrad Kepski, Wesley James Moran
doaj   +1 more source

Palladium-Catalyzed α-Arylation of Carboxylic Acids and Secondary Amides via a Traceless Protecting Strategy. [PDF]

, 2019
A novel traceless protecting strategy is presented for the long-standing challenge of conducting the palladium-catalyzed α-arylation of carboxylic aids and secondary amides with aryl halides.
Hartwig, John F, He, Zhi-Tao
core   +1 more source

Palladium-Catalyzed Oxidation of β-C(sp3)-H Bonds of Primary Alkylamines through a Rare Four-Membered Palladacycle Intermediate. [PDF]

, 2020
Site-selective functionalizations of C-H bonds are often achieved with a directing group that leads to five- or six-membered metallacyclic intermediates. Analogous reactions that occur through four-membered metallacycles are rare. We report a challenging
Bunescu, Ala, Ernst, Martin, Hartwig, John F, Qiu, Yehao, Su, Bo, Zuend, Stephan J   +5 more
core   +1 more source