Abstract
A mild and efficient green protocol has been disclosed for selective oxidative esterification of various aldehydes over a novel Pd fabricated chitosan-starch polyplex encapsulated Kaolin (Kaolin@CS-starch-Pd) as a heterogeneous and reusable biocompatible nanocatalyst. Molecular oxygen was used as an oxidizing agent to generate water as the sole by-product. A wide variety of aldehydes was converted to their methyl esters in high yields. The process involved gentle reaction conditions to avoid any type of pre-activation. Structural features of the catalyst were determined through FT-IR, FE-SEM, TEM, EDX, elemental mapping, XRD and ICP-OES analyses. The material was found to be stable enough toward Pd leaching. Durability of Kaolin@CS-starch-Pd was further justified by retaining its catalytic activity through successful reusability for several times.
| Original language | English |
|---|---|
| Pages (from-to) | 465-473 |
| Number of pages | 9 |
| Journal | International Journal of Biological Macromolecules |
| Volume | 191 |
| DOIs | |
| Publication status | Published - 30 Nov 2021 |
Bibliographical note
Publisher Copyright:© 2021 Elsevier B.V.
Funding
We are thankful to Payame Noor University (PNU), Tehran, Iran for financial supports. We thank Istanbul technical University and TUBITAK-UME for technical supports. BK thanks Gobardanga Hindu College for providing research facilities.
| Funders | Funder number |
|---|---|
| TUBITAK-UME | |
| Payame Noor University | |
| Istanbul Teknik Üniversitesi |
Keywords
- Biopolymer
- Esterification of aldehydes
- Pd nanoparticles