Copper-based catalysts derived from salen-type ligands: synthesis of 5-substituted-1H-tetrazoles via [3+2] cycloaddition and propargylamines via A3-coupling reactions

2020 ◽  
Vol 44 (42) ◽  
pp. 18399-18418 ◽  
Author(s):  
Anshu Singh ◽  
Ankur Maji ◽  
Aurobinda Mohanty ◽  
Kaushik Ghosh
Keyword(s):  
Base Metal ◽  
Coupling Reactions ◽  
A3 Coupling

Base-metal copper(ii) complexes derived from unsymmetrical salen-type ligands were designed and synthesized using ligands L1H to L4H. These complexes were employed as catalysts for [3+2] cycloaddition and A3-coupling reactions.

ChemInform Abstract: [Silver(I)(Pyridine-Containing Ligand)] Complexes as Unusual Catalysts for A3-Coupling Reactions.

ChemInform ◽  
2015 ◽  
Vol 46 (7) ◽  
pp. no-no
Author(s):  
Michael Trose ◽  
Monica Dell'Acqua ◽  
Tommaso Pedrazzini ◽  
Valentina Pirovano ◽  
Emma Gallo ◽  
...  
Keyword(s):  
Coupling Reactions ◽  
A3 Coupling

Synthesis of 4-Alkylidene-Substituted 1,2,3,4-Tetrahydroisoquinolines via Palladium-Catalyzed Carbopalladation/C–H Activation of 2-Bromobenzyl-N-propargylamines

Synthesis ◽  
2015 ◽  
Vol 47 (11) ◽  
pp. 1633-1642 ◽  
Author(s):  
Kanagaraj Naveen ◽  
Avanashiappan Nandakumar ◽  
Paramasivan Perumal
Keyword(s):  
Bond Activation ◽  
Domino Reaction ◽  
Coupling Reactions ◽  
Reaction Proceeds ◽  
Palladium Catalyzed ◽  
A3 Coupling

Tetrasubstituted alkene-based 1,2,3,4-tetrahydroisoquinolines are synthesized via the formation of a cyclic carbopalladation complex followed by C–H bond activation of the sp2 carbon in arenes. This domino reaction proceeds with good selectivity and provides good yields of the products. The requisite starting materials are synthesized by copper(I) iodide catalyzed A3-coupling reactions.

Tethering of Cu(II) Schiff base metal complex on mesoporous material MCM-41: catalyst for Ullmann-type coupling reactions

2016 ◽  
Vol 23 (4) ◽  
pp. 977-986 ◽  
Author(s):  
Malathy Moorthy ◽  
Brundha Kannan ◽  
Bharathi Madheswaran ◽  
Rajavel Rangappan
Keyword(s):  
Schiff Base ◽  
Metal Complex ◽  
Base Metal ◽  
Mesoporous Material ◽  
Coupling Reactions ◽  
Type Coupling ◽  
Mcm 41

scholarly journals Solvent effects in gold-catalysed A3-coupling reactions

2014 ◽  
Vol 55 (1) ◽  
pp. 151-154 ◽  
Author(s):  
Gregory A. Price ◽  
Alan K. Brisdon ◽  
Kevin R. Flower ◽  
Robin G. Pritchard ◽  
Peter Quayle
Keyword(s):  
Solvent Effects ◽  
Coupling Reactions ◽  
A3 Coupling

Cu3L2 metal–organic cages for A3-coupling reactions: reversible coordination interaction triggered homogeneous catalysis and heterogeneous recovery

2018 ◽  
Vol 54 (82) ◽  
pp. 11550-11553 ◽  
Author(s):  
Gong-Jun Chen ◽  
Chao-Qun Chen ◽  
Xue-Tian Li ◽  
Hui-Chao Ma ◽  
Yu-Bin Dong
Keyword(s):  
Homogeneous Catalysis ◽  
Coupling Reaction ◽  
Reusable Catalyst ◽  
Coupling Reactions ◽  
Coordination Interaction ◽  
One Pot ◽  
Highly Active ◽  
Metal Organic ◽  
The One ◽  
A3 Coupling

A novel Cu3L2 metal–organic cage, which features coordination interaction triggered solubility, can be a highly active and reusable catalyst to homogeneously catalyse the one-pot aldehyde–alkyne–amine A3-coupling reaction.

Modern Catalysts in A3- Coupling Reactions

2020 ◽  
Vol 23 (25) ◽  
pp. 2783-2801 ◽  
Author(s):  
Ali Ramazani ◽  
Hamideh Ahankar ◽  
Zahra T. Nafeh ◽  
Sang W. Joo
Keyword(s):  
Transition Metals ◽  
Heterogeneous Catalysts ◽  
Coupling Reaction ◽  
Biologically Active ◽  
Coupling Reactions ◽  
The Past ◽  
Valuable Compounds ◽  
A3 Coupling ◽  
Important Constituent

: Propargylamines are an important constituent of diverse, biologically active and industrially valuable compounds. These useful, convenient and effective compounds can be synthesized via the A3-coupling reactions between an aldehyde, amine, and alkyne in the presence of a catalyst. In the past years, most of the catalysts containing transition metals were applied in these reactions, but today, various heterogeneous catalysts, especially nanocatalysts are used. The purpose of this review was to introduce some modern catalysts for the A3-coupling reaction.

ChemInform Abstract: Solvent Effects in Gold-Catalyzed A3-Coupling Reactions.

ChemInform ◽  
2014 ◽  
Vol 45 (21) ◽  
pp. no-no
Author(s):  
Gregory A. Price ◽  
Alan K. Brisdon ◽  
Kevin R. Flower ◽  
Robin G. Pritchard ◽  
Peter Quayle
Keyword(s):  
Solvent Effects ◽  
Coupling Reactions ◽  
A3 Coupling

Ionic liquid assisted silver-catalyzed one-pot A3-coupling reactions for the synthesis of propargylamines

2019 ◽  
Vol 279 ◽  
pp. 289-293 ◽  
Author(s):  
Anlian Zhu ◽  
Chunyan Du ◽  
Yue Zhang ◽  
Lingjun Li
Keyword(s):  
Ionic Liquid ◽  
Coupling Reactions ◽  
One Pot ◽  
A3 Coupling
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