Novel zinc(II)/chitosan-based composite: ultrasound-assisted synthesis, catalytic and antibacterial activity

Ultrasonic treatment of the reaction between chitosan and aromatic aldehyde, 4-formyl-3-hydroxy-5-hydroxymethyl-1,2-dimethylpyridin-1-ium iodide, resulted in its significant acceleration and increase in degree of derivatization. The CH=N bond of the prepared Schiff base was reduced, and the formed polymeric material was converted into the corresponding zinc(II) composite by treatment with ZnCl2 and NaOH. The obtained composite is non-toxic, possesses high antibacterial activity and can be employed as the catalyst in the Mannich reaction between benzaldehyde, phenylacetylene and piperidine. © 2020

Publisher
Royal Society of Chemistry
Issue number
5
Language
English
Pages
642-644
State
Published
Volume
30
Year
2020
Organizations
  • 1 Peoples Friendship University of Russia (RUDN University), Moscow, 117198, Russian Federation
  • 2 St. Petersburg National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, 197101, Russian Federation
  • 3 Institute of Technical Acoustics, National Academy of Sciences of Belarus, Vitebsk, 210009, Belarus
  • 4 N. I. Pirogov Russian National Research Medical University, Moscow, 117997, Russian Federation
  • 5 N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991, Russian Federation
Keywords
antibacterial activity; catalytic activity; chitosan; Mannich reaction; propargylic amines; pyridoxal; zinc(II) complexes
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