Pd/Cu-free Heck and Sonogashira cross-coupling reaction by Co nanoparticles immobilized on magnetic chitosan as reusable catalyst

2017 ◽  
Vol 19 (5) ◽  
pp. 1353-1361 ◽  
Author(s):  
Abdol R. Hajipour ◽  
Fatemeh Rezaei ◽  
Zahra Khorsandi
Keyword(s):  
Methyl Salicylate ◽  
Organic Ligand ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Reusable Catalyst ◽  
Amino Groups ◽  
Magnetic Chitosan ◽  
Cross Coupling Reaction ◽  
Cobalt Coordination ◽  
Co Nanoparticles

Chitosan (CS) is a porous, self-standing, nanofibrillar microsphere that can be used as a metal carrier. Amino groups on CS enable to modulate cobalt coordination using a safe organic ligand (methyl salicylate).

Palladium nanoparticles supported on 1,3-dicyclohexylguanidine functionalized mesoporous silica SBA-15 as highly active and reusable catalyst for the Suzuki–Miyaura cross-coupling reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20098-20107 ◽  
Author(s):  
Hojat Veisi ◽  
Abbas Amini Manesh ◽  
Neda Eivazi ◽  
Ali Reza Faraji
Keyword(s):  
Mesoporous Silica ◽  
Palladium Nanoparticles ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Reusable Catalyst ◽  
Suzuki Reactions ◽  
Highly Active ◽  
Functionalized Mesoporous Silica ◽  
Cross Coupling Reaction ◽  
Nano Catalyst

The synthesis and application of SBA-15/1,3-DCG/Pd as a novel heterogeneous and reusable nano catalyst in Suzuki reactions was described.

Design, preparation and characterization of aerogel NiO–CuO–CoO/SiO2 nanocomposite as a reusable catalyst for C–N cross-coupling reaction

2020 ◽  
Vol 44 (13) ◽  
pp. 5056-5063
Author(s):  
Amir Hossein Ghasemi ◽  
Hossein Naeimi
Keyword(s):  
Sol Gel ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Supercritical Drying ◽  
Reusable Catalyst ◽  
Drying Method ◽  
Cross Coupling Reaction ◽  
Powerful Process

The aerogel nanocomposite produces using the sol–gel and supercritical drying method processes. The CO2 supercritical drying (SCD) was taken as the most powerful process, ensuring the best properties of the product.

Suzuki-Miyaura Cross-Coupling Towards 4-Amino Biphenyl Intermediates

2019 ◽  
Author(s):  
Tomasz Jastrząbek ◽  
Artur Ulikowski ◽  
Rafał Lisiak
Keyword(s):  
Chemical Industry ◽  
Short Communication ◽  
Phenylboronic Acid ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Amino Groups ◽  
Aryl Chlorides ◽  
Cross Coupling Reaction ◽  
Direct Cross

The preparation of biphenyl derivatives bearing amino groups via direct cross-coupling reaction is being widely explored due to its importance for many branches of the chemical industry. One of the necessary components for such a transformation are halogenated arenes. In order to make the process more economical, we focus on inexpensive and easily available aryl chlorides which usually are not considered reagents of choice for catalytic couplings. In the following short communication, we report the results of the coupling of relatively unreactive chloroaniline with a fluorinated phenylboronic acid leading to the corresponding aminobiphenyl.<br>

Pd(OAc)2 and (DHQD)2PHAL as a simple, efficient and recyclable/reusable catalyst system for Suzuki–Miyaura cross-coupling reactions in H2O at room temperature

2015 ◽  
Vol 39 (4) ◽  
pp. 2440-2443 ◽  
Author(s):  
Bishwajit Saikia ◽  
Abdul Aziz Ali ◽  
Preeti Rekha Boruah ◽  
Diganta Sarma ◽  
Nabin Chandra Barua
Keyword(s):  
Room Temperature ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Catalyst System ◽  
Reusable Catalyst ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Cross Coupling Reaction

Suzuki–Miyaura cross-coupling reaction catalyzed by Pd(OAc)2–(DHQD)2PHAL is a very simple, mild, efficient and recyclable/reusable protocol for the synthesis of biaryls/heterobiaryls in neat H2O at room temperature.

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