Mohammad Kamali-Ardakani - Department of Chemistry, Payame Noor University, PO Box ۱۹۳۹۵-۴۶۹۷, Tehran, Iran
Esmael Rostami - Department of Chemistry, Payame Noor University, PO Box ۱۹۳۹۵-۴۶۹۷, Tehran, Iran
Abdolkarim Zare - Department of Chemistry, Payame Noor University, PO Box ۱۹۳۹۵-۴۶۹۷, Tehran, Iran

A thermally and chemically sustainable nanocomposite, namely graphene oxide@polyaniline-FeF۳ (GO@PANI-FeF۳), was fabricated, and characterized using FT-IR (Fourier transform infrared spectroscopy), XRD (X-ray diffraction), FE-SEM (field emission scanning electron microscopy), EDAX (energy-dispersive X-ray spectroscopy) and TG (thermal gravimetric) analyses. Then, ۴H-pyrimido[۲,۱-b]benzothiazoles were constructed from aryl aldehydes, ethyl acetoacetate and ۲-aminobenzothiazole using GO@PANI-FeF۳ as catalyst; performing the reactions under solvent-free conditions, efficiency, high yields, relatively short times and recoverability of the catalyst are some advantages of our protocol.

Nanocomposite, Graphene oxide@polyaniline-FeF۳, GO@PANI-FeF۳, ۴H-Pyrimido[۲,۱-b]benzothiazole, ۲-Aminobenzothiazole