Copper(II) and Vanadium(IV) Complexes of New Modified Poly(vinyl chloride) Schiff Base for Catalytic Studies in Knoevenagel Condensation

Document Type : Research Paper

Authors

1 Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran

2 School of Chemistry, Damghan University, Damghan, Iran

10.22036/icr.2021.259691.1096

Abstract

At first, new pendant Schiff base PVC-en-3MSSB was prepared by modification of PVC at the presence of ethylene diamine and 3-methoxy salicylaldehde (3MS). Then, from the reaction of PVC-en-3MSSB and Cu(OAC)2 or VO(acac)2, PVC pendant complexes PVC-en-3MSSB-Cu (1) and PVC-en-3MSSB-VO (2) were prepared. All compounds were characterized by FT-IR, XRD, TGA, DTA and TEM. FT-IR and XRD results confirmed the preparation of all compounds. TGA results show that the stability of complex 1 is higher than 2 and PVC-en-3MSSB. In addition, the catalytic properties of the complexes in Knoevenagel condensation for synthesis of 4-hydroxysalicydenebarbituric acid are investigated and the results show that the vanadium(IV) complex has a better catalytic properties.

Graphical Abstract

Copper(II) and Vanadium(IV) Complexes of New Modified Poly(vinyl chloride) Schiff Base for Catalytic Studies in Knoevenagel Condensation

Keywords

Volume 5, Issue 2
December 2021
Pages 163-172
  • Receive Date: 29 November 2020
  • Revise Date: 07 April 2021
  • Accept Date: 11 April 2021