چكيده به لاتين
In this study, using a modified agarose substrate layer by sulfuric acid and Boric acid to synthesis new catalyst, it has the advantages of environmental compatibility, excellent performance, short reaction time, non-toxic, simple work, easy synthesis operations. Inexpensive raw materials that are naturally present and easy extraction of products without the need for column chromatography, recycling and reuse up to six times with Unchang performance and using it in the synthesis of derivatives of 4H- pyrans and acridones in time Short and excellent performance (86%–97%).
These catalysts were synthesized and characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy(EDX), Fourier transform infrared (FT-IR) Spectroscopy
