Skip to main content
Log in

Regioselective synthesis of 5-aryl azo salicylaldehydes catalyzed by Zn/SBA-15

  • Original Paper
  • Published:
Chemical Papers Aims and scope Submit manuscript

Abstract

Synthesis of (E)-2-hydroxy-5-(aryldiazenyl)benzaldehydes was investigated. Various Lewis acids were tested as catalyst to achieve regioselectivity. In addition to various commercial catalysts, mesoporous Zn/SBA-15 was synthesized through a modified direct method with chloride salt as zinc precursor and characterized using N2-physisorption, low-angle XRD, FESEM and EDX methods; specific surface area of 832 m2 g−1 is a noteworthy result compared to the literature. The synthesized catalyst showed the best results in terms of both total yield and regioselectivity. A scalable two-phase reaction media was used to facilitate both reaction progress monitoring and final product separation. Minimizing solvent consumption, this method can be considered for larger scale production of aryl azo dyes and related compounds.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Scheme 1
Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

Download references

Acknowledgements

The authors wish to thank the Universities of Guilan and Tehran. We also thank the Iranian National Science Foundation (INSF) for financial support.

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Bahram Ghalami-Choobar or Afsaneh Zonouzi.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOCX 867 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zonouzi, F., Rahmani, A., Dezhampanah, H. et al. Regioselective synthesis of 5-aryl azo salicylaldehydes catalyzed by Zn/SBA-15. Chem. Pap. 73, 2409–2415 (2019). https://doi.org/10.1007/s11696-019-00790-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11696-019-00790-1

Keywords

Navigation