Copper nanoparticles in click chemistry: an alternative catalytic system for the cycloaddition of terminal alkynes and azides

2009 ◽  
Vol 50 (20) ◽  
pp. 2358-2362 ◽  
Author(s):  
Francisco Alonso ◽  
Yanina Moglie ◽  
Gabriel Radivoy ◽  
Miguel Yus
Keyword(s):  
Click Chemistry ◽  
Catalytic System ◽  
Copper Nanoparticles ◽  
Terminal Alkynes

Click Chemistry: Copper Clusters Catalyse the Cycloaddition of Azides with Terminal Alkynes

2005 ◽  
Vol 347 (6) ◽  
pp. 811-815 ◽  
Author(s):  
Laura Durán Pachón ◽  
Jan H. van Maarseveen ◽  
Gadi Rothenberg
Keyword(s):  
Click Chemistry ◽  
Terminal Alkynes ◽  
Copper Clusters

scholarly journals Bis-NHC–Ag/Pd(OAc)2 Catalytic System Catalyzed Transfer Hydrogenation Reaction

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 8
Author(s):  
Hui-Ju Chen ◽  
Chien-Cheng Chiu ◽  
Tsui Wang ◽  
Dong-Sheng Lee ◽  
Ta-Jung Lu
Keyword(s):  
Functional Groups ◽  
Catalytic System ◽  
High Efficiency ◽  
Aqueous Media ◽  
Hydrogenation Reaction ◽  
Transfer Hydrogenation ◽  
Terminal Alkynes ◽  
Wide Range ◽  
Transfer Hydrogenation Reaction

The bis-NHC–Ag/Pd(OAc)2 catalytic system (NHC = N-heterocyclic carbene), a combination of bis-NHC–Ag complex and Pd(OAc)2, was found to be a smart catalyst in the Pd-catalyzed transfer hydrogenation of various functionalized arenes and internal/terminal alkynes. The catalytic system demonstrated high efficiency for the reduction of a wide range of various functional groups such as carbonyls, alkynes, olefins, and nitro groups in good to excellent yields and high chemoselectivity for the reduction of functional groups. In addition, the protocol was successfully exploited to stereoselectivity for the transformation of alkynes to alkenes in aqueous media under air. This methodology successfully provided an alternative useful protocol for reducing various functional groups and a simple operational protocol for transfer hydrogenation.

scholarly journals C–C (alkynylation) vs C–O (ether) bond formation under Pd/C–Cu catalysis: synthesis and pharmacological evaluation of 4-alkynylthieno[2,3-d]pyrimidines

2011 ◽  
Vol 7 ◽  
pp. 338-345 ◽  
Author(s):  
Dhilli Rao Gorja ◽  
K Shiva Kumar ◽  
K Mukkanti ◽  
Manojit Pal
Keyword(s):  
Cytotoxic Activity ◽  
Catalytic System ◽  
High Selectivity ◽  
Bond Formation ◽  
Terminal Alkynes ◽  
Ether Bond ◽  
Pharmacological Evaluation

The Pd/C–CuI–PPh3 catalytic system facilitated C–C bond formation between 4-chlorothieno[2,3-d]pyrimidines and terminal alkynes in methanol with high selectivity without generating any significant side products arising from C–O bond formation between the chloro compounds and methanol. A variety of novel 4-alkynylthieno[2,3- d]pyrimidines were prepared via alkynylation of 4-chlorothieno[2,3-d]pyrimidines in good to excellent yields. Some of the compounds synthesized were tested for cytotoxic activity in vitro.

In Situ Generation of Copper Nanoparticles by Rongalite and Their Use as Catalyst for Click Chemistry in Water

2018 ◽  
Vol 3 (48) ◽  
pp. 13759-13764 ◽  
Author(s):  
Soumya Poshala ◽  
Sanjeeva Thunga ◽  
Saikumar Manchala ◽  
Hari Prasad Kokatla
Keyword(s):  
Click Chemistry ◽  
Copper Nanoparticles ◽  
In Situ Generation

ChemInform Abstract: A Simple One-Pot Procedure for the Direct Homocoupling of Terminal Alkynes Promoted by Copper Nanoparticles.

ChemInform ◽  
2010 ◽  
Vol 41 (14) ◽  
Author(s):  
Fabiana Nador ◽  
Leandro Fortunato ◽  
Yanina Moglie ◽  
Cristian Vitale ◽  
Gabriel Radivoy
Keyword(s):  
Copper Nanoparticles ◽  
Terminal Alkynes ◽  
One Pot

scholarly journals Copper nanoparticles on controlled pore glass (CPG) as highly efficient heterogeneous catalysts for “click reactions”

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Abdolrahim A. Rafi ◽  
Ismail Ibrahem ◽  
Armando Córdova
Keyword(s):  
Copper Nanoparticles ◽  
Heterogeneous Catalysts ◽  
Catalyst System ◽  
Terminal Alkynes ◽  
Click Reactions ◽  
Dipolar Cycloadditions ◽  
Organic Azides ◽  
Controlled Pore Glass ◽  
Pore Glass ◽  
High Yields

AbstractWe herein report that supported copper nanoparticles (CuNPs) on commercially available controlled pore glass (CPG), which exhibit high mechanical, thermal and chemical stability as compared to other silica-based materials, serve as a useful heterogeneous catalyst system for 1,3-dipolar cycloadditions (“click” reactions) between terminal alkynes and organic azides under green chemistry conditions. The supported CuNPs-CPG catalyst exhibited a broad substrate scope and gave the corresponding triazole products in high yields. The CuNPs-CPG catalyst exhibit recyclability and could be reuced multiple times without contaminating the products with Cu.

Cu(ii)@Luviset clear as recyclable catalyst for the formation of C–C bond in homo-coupling of terminal alkynes

RSC Advances ◽  
2015 ◽  
Vol 5 (117) ◽  
pp. 96372-96376 ◽  
Author(s):  
Zheng-Jun Wang ◽  
Peng-Hui Wang ◽  
Jing-Jing Lv ◽  
Jiu-Ju Feng ◽  
Xinhua Xu ◽  
...  
Keyword(s):  
Catalytic System ◽  
Product Yield ◽  
Recyclable Catalyst ◽  
Terminal Alkynes ◽  
Terminal Alkyne

A recyclable catalytic system of Cu(ii)@Luviset clear was developed for the homo-coupling of terminal alkyne with excellent product yield.

One-pot synthesis of new triazole-sucrose derivatives via click chemistry and evaluation of their antitubercular activity

2016 ◽  
Vol 22 (4) ◽  
Author(s):  
Khaoula Hajlaoui ◽  
Ahlem Guesmi ◽  
Naoufel Ben Hamadi ◽  
Moncef Msaddek
Keyword(s):  
Click Chemistry ◽  
Copper Nanoparticles ◽  
Antitubercular Activity ◽  
Antimycobacterial Activity ◽  
Dipolar Cycloaddition ◽  
One Pot ◽  
Effective Catalyst ◽  
One Pot Synthesis

AbstractReadily prepared copper nanoparticles are an effective catalyst for 1,3-dipolar cycloaddition of carbohydrate azide and a variety of alkynes that furnishes the corresponding 1,2,3-triazole-sucrose derivatives in excellent yields. Products were screened for their antimycobacterial activity against

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