Cu(II) immobilized on Fe$_{3}$O$_{4}$ @Agarose nanomagnetic catalyst functionalizedwith ethanolamine phosphate-salicylaldehyde Schiff base: a magnetically reusablenanocatalyst for preparation of 2-substituted imidazolines, oxazolines, andthiazolines

Authors

ZEINAB ZAREI
BATOOL AKHLAGHINIA

DOI

10.3906/kim-1704-53

Abstract

Herein we synthesized Cu(II) immobilized on Fe$_{3}$O$_{4}$ @Agarose functionalized with ethanolamine phosphate{ salicylaldehyde Schiff base (Fe$_{3}$O$_{4}$ @Agarose/SAEPH$_{2}$ /Cu(II)) as a new and cost-effective nanomagnetic catalyst. The nanomagnetic catalyst was characterized by FT-IR, XRD, VSM, SEM-EDX, TEM, TGA, and ICP techniques and it was found that the particles were about 9-25 nm in size and spherical with entrapment of the Fe$_{3}$O$_{4}$ particles in the hollow pore structure of the agarose. The prepared nanomagnetic catalyst showed excellent activity for preparation of 2-substituted imidazolines, oxazolines, and thiazolines. The catalyst is easy to prepare and exhibits higher catalytic activity than some commercially available copper sources. More importantly, this nanomagnetic catalyst can be easily recovered by using a permanent magnet and reused for at least seven cycles without signiicant deactivation.

Keywords

Agarose, Schiff base complex, nanomagnetic catalyst, 2-substituted imidazolines, 2-substituted oxazolines and 2-substituted thiazolines

First Page

170

Last Page

191

Recommended Citation

ZAREI, ZEINAB and AKHLAGHINIA, BATOOL (2018) "Cu(II) immobilized on Fe$_{3}$O$_{4}$ @Agarose nanomagnetic catalyst functionalizedwith ethanolamine phosphate-salicylaldehyde Schiff base: a magnetically reusablenanocatalyst for preparation of 2-substituted imidazolines, oxazolines, andthiazolines," Turkish Journal of Chemistry: Vol. 42: No. 1, Article 15. https://doi.org/10.3906/kim-1704-53
Available at: https://journals.tubitak.gov.tr/chem/vol42/iss1/15