Modified green method for the preparation of MgO nanopowders as efficient catalysts for the synthesis of pyrano[4,3-d]thiazolo[3,2-a]pyrimidine derivatives

Document Type : Research Article

Authors

1 department of chemistry islamic azad university buinzahra branch

2 Department of Chemistry, Shahr‑e‑Qods Branch, Islamic Azad University, Tehran, Iran

Abstract

In this research three simple methods including thermal, ultrasonic irradiation, and high speed milling method (HSBM) technique for preparation of pyrano[4,3-d]thiazolo[3,2-a]pyrimidine and chromeno[4,3-d]thiazolo[3,2-a]pyrimidines derivatives in the presence of MgO nanopowders under solvent free conditions has been reported. MgO nanopowders were prepared in an aqueous solution containing freshly squeezed orange juice with pulp and characterized by XRD, FE-SEM, EDS, and FT-IR techniques.

In this research three simple methods including thermal, ultrasonic irradiation, and high speed milling method (HSBM) technique for preparation of pyrano[4,3-d]thiazolo[3,2-a]pyrimidine and chromeno[4,3-d]thiazolo[3,2-a]pyrimidines derivatives in the presence of MgO nanopowders under solvent free conditions has been reported. MgO nanopowders were prepared in an aqueous solution containing freshly squeezed orange juice with pulp and characterized by XRD, FE-SEM, EDS, and FT-IR techniques.

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