Results 11 to 20 of about 6,557,444 (383)

Copper-Catalyzed S-Arylation of Thiols Using KF/Al2O3 [PDF]

شیمی کاربردی روز, 2014
Copper-catalyzed S-arylation of thiols can be accomplished using air-stable CuI as a copper source and 1,10-phenanthroline as a ligand in the presence of KF/Al2O3 as a suitable base.
Rahman Hosseinzadeh, Maryam Mohadjerani, Maryam Sadati, Mohammad Alikarami   +3 more
doaj   +1 more source

CuI-Catalyzed Coupling Reactions of 4-Iodopyrazoles and Alcohols: Application toward Withasomnine and Homologs

Molecules, 2021
The direct 4-alkoxylation of 4-iodo-1H-pyrazoles with alcohols was achieved by a CuI-catalyzed coupling protocol. The optimal reaction conditions employed excess alcohol and potassium t-butoxide (2 equiv) in the presence of CuI (20 mol%) and 3,4,7,8 ...
Yoshihide Usami, Yumika Kubo, Toshiki Takagaki, Nao Kuroiwa, Jun Ono, Kohei Nishikawa, Ayaka Nakamizu, Yuya Tatsui, Shinya Harusawa, Noboru Hayama, Hiroki Yoneyama   +10 more
doaj   +1 more source

Multilabel Classification Models for the Prediction of Cross-Coupling Reaction Conditions

Journal of Chemical Information and Modeling, 2020
Machine-learned ranking models have been developed for the prediction of substrate-specific cross-coupling reaction conditions. Data sets of published reactions were curated for Suzuki, Negishi, and C-N couplings, as well as Pauson-Khand reactions ...
Michael R. Maser, Alexander Cui, Serim Ryou, Travis J DeLano, Yisong Yue, S. Reisman   +5 more
semanticscholar   +1 more source

Efficient Sonogashira Coupling Reaction Catalyzed by Copper (I) Iodide in the Presence of KF/Al2O3 [PDF]

شیمی کاربردی روز, 2009
We have developed a convenient and efficient method for coupling of aryl iodides and bromides with terminal alkynes. The protocol uses CuI as catalyst, 1, 10-phenanthroline as ligand, KF/Al2O3 as base and toluene as solvent.
Rahman Hosseinzadeh, Maryam Mohadjerani, Rahmatollah Tavakoli   +2 more
doaj   +1 more source

Simple Synthesis of Modafinil Derivatives and Their Anti-inflammatory Activity

Molecules, 2012
Simple synthesis of modafinil derivatives and their biological activity are described. The key synthetic strategies involve substitution and coupling reactions. We determined the anti-inflammatory effects of modafinil derivatives in cultured BV2 cells by
Mankil Jung, Seikwan Oh, Eunyoung Lim, Jee-Young Son, Yeonju Lee, Jae-Chul Jung   +5 more
doaj   +1 more source

Coupling Reactions

ChemInform, 2006
AbstractFor Abstract see ChemInform Abstract in Full Text.
Mecking, Stefan, Schlotterbeck, Ulf
openaire   +2 more sources

Regioselective Formation of α-Vinylpyrroles from the Ruthenium-Catalyzed Coupling Reaction of Pyrroles and Terminal Alkynes Involving C–H Bond Activation [PDF]

, 2010
The cationic ruthenium catalyst Ru3(CO)12/NH4PF6 was found to be highly effective for the intermolecular coupling reaction of pyrroles and terminal alkynes to give gem-selective α-vinylpyrroles.
Gao, Ruili, Yi, Chae S.
core   +2 more sources

Investigation of the Pyridinium Ylide—Alkyne Cycloaddition as a Fluorogenic Coupling Reaction

Molecules, 2016
The cycloaddition of pyridinium ylides with alkynes was investigated under mild conditions. A series of 13 pyridinium salts was prepared by alkylation of 4-substituted pyridines.
Simon Bonte, Ioana Otilia Ghinea, Rodica Dinica, Isabelle Baussanne, Martine Demeunynck   +4 more
doaj   +1 more source

Synthesis of 2-Acylphenol and Flavene Derivatives from the Ruthenium-Catalyzed Oxidative C-H Acylation of Phenols with Aldehydes [PDF]

, 2015
The cationic ruthenium hydride complex [(C6H6)(PCy3)(CO)RuH]+BF4− has been found to be an effective catalyst for the oxidative C–H coupling reaction of phenols with aldehydes to give 2-acylphenol compounds.
Aponick, Arockiam, Baslé, Boots, Chan, Charest, Choy, Fristrup, González-Bello, Gore, Gunanathan, Han, Jia, Kakiuchi, Kakiuchi, Kandaswami, Koren-Selfridge, Kwon, Lee, Li, Li, Li, Li, Lyons, Madabhushi, Miyaura, Mo, Ngidi, Obora, Olah, Park, Pastine, Rao, Rappoport, Shan, Sharma, Sigman, Suzuki, Tang, Thirunavukkarasu, Thirunavukkarasu, Thirunavukkarasu, Wang, Yang, Yao, Yeung, Zhang, Álvarez-Bercedo   +47 more
core   +2 more sources

In-situ Nitrous Acid Generation over Silica Imidazole Catalyst for Dyes Production

Bulletin of Chemical Reaction Engineering & Catalysis, 2019
The objective of this research is to prepare a new type of heterogeneous catalyst and to study its usage for in-situ nitrous acid generation to form a diazonium salt.
Kasim Mohammed Hello, Nahla Ghaze Fahad
doaj   +1 more source