شماره ركورد كنفرانس :
4689
عنوان مقاله :
Efficient, one-pot synthesis of xanthene derivatives using Fe3O4@SiO2-Propyl-Pip-SO3H.HSO4 as a magnetically recyclable catalyst under solvent-free conditions
پديدآورندگان :
Pourghasemi Lati Monireh University of Zanjan , Shirini Farhad shirini@guilan.ac.ir University of Guilan, Rasht , Alinia-Asli Mokhtar m_aliniaaslir@znu.ac.ir University of Zanjan , Rezvani Mohammad Ali University of Zanjan
كليدواژه :
Magnetic nanoparticles , Reusable catalyst , 1 , 8 , Dioxo , octahydro xanthenes , Aldehyde.
عنوان كنفرانس :
اولين كنفرانس ملي كاتاليست ايران
چكيده فارسي :
An efficient and green method has been introduced for the synthesis of xanthene derivatives through a one-pot condensation of aldehydes and dimedone in the presence of Fe3O4@SiO2-Propyl-Pip-SO3H.HSO4 as a magnetically recyclable catalyst under solvent-free conditions with excellent yields. The catalyst is easily prepared and characterized using various techniques such as Fourier transform infrared (FT-IR), X-ray powder diffraction (XRD), Thermogravimetric analysis (TGA), Energy-dispersive X-ray spectroscopy (EDX) and Scanning electron microscopy (SEM). The catalyst was easily isolated from the reaction mixture by magnetic decantation using an external magnet and reused at least six times without significant degradation in the activity.
