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بیست و نهمین کنفرانس شیمی آلی ایران
Preparation of ZIF 8@GO@CoFe2O4: a Novel Ternary Catalyst for the Synthesis of Pyrazole-Based Pyrido[2,3-d]pyrimidine-diones
نویسندگان :
Boshra Mirhosseini-Eshkevari ( آزاد قم ) , Mohammad Ali Ghasemzadeh ( آزاد قم )
کلید واژه ها :
Graphene oxide،Metal-organic frameworks (MOFs)،Pyrido[2,3-d]pyrimidine-diones
چکیده مقاله :
An efficient and stable CoFe2O4 nanoparticles incorporated in zeolitic imidazolate framework-8 supported on graphene oxide (GO) was synthesized. Using the achieved heterogeneous catalyst including ZIF 8@GO@CoFe2O4, various pyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidine-dione derivatives were synthesized through the one-pot five-component reaction of hydrazine hydrate, ethyl acetoacetate, 1,3 dimethyl barbituric acid, ammonium acetate, and aryl aldehydes in the absence of any solvent. Furthermore, it was found that such a new heterogeneous catalyst was simply recyclable and separable. This research introduces a green and suitable versatile to synthesize a class of organic compounds by simple work-up, facile recycling system, excellent yields, utilizing non-toxic materials, as well as short reaction times. Scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), Furrier transforms infrared spectroscopy (FT-IR) and X-ray diffraction spectroscopy (XRD) analysis were used to characterization and structure elucidation of the catalyst.
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