Results 21 to 30 of about 616,215 (256)

Author Correction: Ligand-tuning copper in coordination polymers for efficient electrochemical C–C coupling [PDF]

Nature Communications
Yu Yang, Cheng Zhang, Chengyi Zhang, Yaohui Shi, Jun Li, Bernt Johannessen, Yongxiang Liang, Shuzhen Zhang, Qiang Song, Haowei Zhang, Jialei Huang, Jingwen Ke, Lei Zhang, Qingqing Song, Jianrong Zeng, Ying Zhang, Zhigang Geng, Pu-Sheng Wang, Ziyun Wang, Jie Zeng, Fengwang Li   +20 more
doaj   +2 more sources

Catalyst controlled remote CH activation of 8-aminoquinolines with NFSI for CN versus CF coupling

Catalysis Communications, 2021
A catalyst-controlled selective functionalization of 8-aminoquinolines with N-fluorobenzenesulfonimide (NFSI) has been developed. The use of GTP-Cu catalysts leads to CN coupling products and whereas the CF coupling reaction is dominant for GPT-Ni ...
Kai Zheng, Enmu Zhou, Letian Zhang, Lixi Zhang, Wenbo Yu, Hao Xu, Chao Shen   +6 more
doaj   +1 more source

Selectivity Control in the Palladium-catalyzed Cross-coupling of Alkyl Nucleophiles

CHIMIA, 2016
Site-selectivity remains a major challenge in metal-catalyzed C–H bond functionalization. Most existing strategies rely on the introduction of a directing group or on the intrinsic reactivity of the substrate.
Olivier Baudoin
doaj   +1 more source

Recent Applications on Dual-Catalysis for C–C and C–X Cross-Coupling Reactions

SynOpen, 2022
Coupling reactions stand amid the most significant reactions in synthetic organic chemistry. Of late, these coupling strategies are being viewed as a versatile synthetic tool for a wide range of organic transformations in many sectors of chemistry ...
Dakoju Ravi Kishore, Chinnabattigalla Sreenivasulu, Anil Balajirao Dapkekar, Gedu Satyanarayana   +3 more
doaj   +1 more source

An Orthogonal Synthetic Approach to Nonsymmetrical Bisazolyl 2,4,6-Trisubstituted Pyridines

Molecules, 2022
A three-step synthetic route giving access to nonsymmetrical bisazolyl 2,4,6-trisubstituted pyridines with different substituents on the pyrazole, indazole, and pyridine heterocycles is described.
Arturo Gamonal Ruiz-Crespo, Laura Galán-Fernández, Paloma Martínez-Martín, Juan Carlos Rodríguez-Ubis   +3 more
doaj   +1 more source

Palladium-Catalyzed Heck Coupling Reaction of Aryl Bromides in Aqueous Media Using Tetrahydropyrimidinium Salts as Carbene Ligands

Molecules, 2010
An efficient and stereoselective catalytic system for the Heck cross coupling reaction using novel 1,3-dialkyl-3,4,5,6-tetrahydropyrimidinium salts (1, LHX) and Pd(OAc)2 loading has been reported.
İsmail Özdemir, Bekir Çetinkaya, Nevin Gürbüz, Emine Özge Özcan, Sedat Yaşar   +4 more
doaj   +1 more source

On the Use of Iron in Organic Chemistry

Molecules, 2020
Transition metal catalysis in modern organic synthesis has largely focused on noble transition metals like palladium, platinum and ruthenium. The toxicity and low abundance of these metals, however, has led to a rising focus on the development of the ...
Arnar Guðmundsson, Jan-E. Bäckvall
doaj   +1 more source

Re-Mediated C–C Coupling of Pyridines and Imidazoles

Journal of the American Chemical Society, 2012
Rhenium tricarbonyl complexes with three N-heterocyclic ligands (N-alkylimidazoles or pyridines) undergo deprotonation with KN(SiMe(3))(2) and then oxidation with AgOTf to afford complexes with pyridylimidazole or bipyridine bidentate ligands resulting from deprotonation, C-C coupling and rearomatization.
Espinal Viguri, Maialen, Huertos, Miguel A., Pérez, Julio, Riera, Lucía, Ara, Irene   +4 more
openaire   +3 more sources

Synthesis of 2H-pyrroles via iron catalyzed dehydrogenative coupling and C–C bond cleavage

Green Synthesis and Catalysis, 2021
Iron catalyzed coupling of β-amino alcohols with allylic alcohols for the synthesis of 3,4-dihydro-2H-pyrrole derivatives has been developed. Mechanistic studies suggest that the reaction involves iron catalyzed dehydrogenative coupling and C–C bond ...
Suya Cui, Xiaoyun Wu, Wei Ma, Weijun Tang, Huaming Sun, Jianliang Xiao, Dong Xue, Chao Wang   +7 more
doaj   +1 more source

Visible light-driven C−H activation and C–C coupling of methanol into ethylene glycol

Nature Communications, 2018
Direct transformation of methanol into two- or multi-carbon compounds is extremely attractive but remains a challenge. Here, the authors report an efficient photocatalytic route to the transformation of methanol into ethylene glycol and hydrogen over a ...
Shunji Xie, Zebin Shen, Jiao Deng, Pu Guo, Qinghong Zhang, Haikun Zhang, Chao Ma, Zheng Jiang, Jun Cheng, Dehui Deng, Ye Wang   +10 more
doaj   +1 more source