Cationic palladium(II) catalysts on O-carboxymethyl chitosan Schiff base for Suzuki coupling reactions

2016 ◽  
Vol 53 (11) ◽  
pp. 687-690 ◽  
Author(s):  
Talat Baran ◽  
Ayfer Menteş
Keyword(s):  
Schiff Base ◽  
Suzuki Coupling ◽  
Carboxymethyl Chitosan ◽  
Coupling Reactions ◽  
Cationic Palladium ◽  
Chitosan Schiff Base

Suzuki coupling reactions catalyzed by Schiff base supported palladium complexes bearing the vitamin B6 cofactor

2021 ◽  
Vol 505 ◽  
pp. 111528
Author(s):  
Abdollah Neshat ◽  
Mohammad Gholinejad ◽  
Hafize Özcan ◽  
Faezeh Khosravi ◽  
Ali Mousavizadeh Mobarakeh ◽  
...  
Keyword(s):  
Schiff Base ◽  
Vitamin B6 ◽  
Suzuki Coupling ◽  
Palladium Complexes ◽  
Coupling Reactions ◽  
Supported Palladium

scholarly journals Synthesis of Mn(II) Complexes-Carboxymethyl Chitosan Schiff Base Salicylaldehyde and Antibacterial Activity

2021 ◽  
Vol 7 (1) ◽  
pp. 10-21
Author(s):  
Ismiyarto Ismiyarto ◽  
Niken Windi Saputri ◽  
Liswinda Zafirah Rahmatia ◽  
Purbowatiningrum Ria Sarjono ◽  
Ngadiwiyana Ngadiwiyana ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Schiff Base ◽  
Carboxymethyl Chitosan ◽  
Diffusion Method ◽  
Clear Zone ◽  
Disc Diffusion Method ◽  
Zone Diameter ◽  
Chitosan Schiff Base

The development of compounds with a better antibacterial activity is highly needed. One way to achieve this is by modifying the structure of the compound using chitosan as a starting material, because of its abundant natural source in Indonesia, its biodegradable properties, and its structure where free amines are present. This study aims to obtain  Mn(II) -Carboxymethyl Chitosan Schiff Base-Salicylaldehyde complex to increase its antibacterial activity against Staphylococcus aureus (Gram positive) and Escherichia coli (Gram negative). Schiff Base carboxymethyl chitosan-salicylaldehyde was synthesized from carboxymethyl chitosan with salicylaldehyde. Next, the Schiff Base Carboxymethyl Chitosan-Salicylaldehyde was complexed with MnCl2.4H2O and then characterized by FTIR, UV-Vis Spectrophotometer, and AAS and tested for antibacterial activity with the disc diffusion method against Staphylococcus aureus and Escherichia coli. The product of Carboxymethyl Chitosan Schiff Base-salicylaldehyde is a brownish yellow solid with a yield of 64% (w/w) and has antibacterial activity against Staphylococcus aureus (clear zone diameter 11 mm) and Escherichia coli (clear zone diameter 13 mm). The product of Mn(II) Complexes-Carboxymethyl Chitosan Schiff Base-salicylaldehyde is a black solid with a yield of 59% (w/w) and has antibacterial activity against Staphylococcus aureus (clear zone diameter 13 mm) and Escherichia coli (clear zone diameter 17 mm).

Zinc(ii) centered biologically active novel N,N,O donor tridentate water-soluble hydrazide-based O-carboxymethyl chitosan Schiff base metal complexes: synthesis and characterisation

2019 ◽  
Vol 43 (24) ◽  
pp. 9540-9554 ◽  
Author(s):  
Manimohan Murugaiyan ◽  
S. Pugal Mani ◽  
Mohamed Aboobucker Sithique
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Base Metal ◽  
Carboxymethyl Chitosan ◽  
Water Soluble ◽  
Biologically Active ◽  
Schiff Base Derivatives ◽  
Schiff Base Metal Complexes ◽  
Potential Use ◽  
Chitosan Schiff Base

In this study, novel eco-friendly and water-soluble chitosan Schiff base derivatives have been designed for potential use in antimicrobial applications.

Palladium(II) complexes comprising naphthylamine and biphenylamine based Schiff base ligands: Synthesis, structure and catalytic activity in Suzuki coupling reactions

2020 ◽  
Vol 914 ◽  
pp. 121220
Author(s):  
Veerasamy Nagalakshmi ◽  
Munusamy Sathya ◽  
Muniyappan Premkumar ◽  
Dhananjayan Kaleeswaran ◽  
Galmari Venkatachalam ◽  
...  
Keyword(s):  
Schiff Base ◽  
Catalytic Activity ◽  
Suzuki Coupling ◽  
Coupling Reactions ◽  
Schiff Base Ligands
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