Nanomagnetite-Fe3O4 as a highly efficient, green and recyclable catalyst for the synthesis of 4,4´-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol)s

Authors

• Abdolkarim Zare ¹
• Fereshteh Abi ²
• Vahid Khakyzadeh ³
• Ahmad Reza Moosavi-Zare ⁴
• Alireza Hasaninejad ⁵
• Mahmoud Zarei ⁶

1. Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran
2. Department of Chemistry, Payame Noor University, PO BOX 19395-4697, Tehran, Iran
3. Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 6517838683, Iran
4. Department of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad, 6541861841, Iran.
5. Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran
6. Department of Chemistry, Faculty of Science, University of Qom, Qom, 3716146611, Iran

Abstract

Nanomagnetite-Fe3O4 is used as a highly efficient, mild, green and recyclable nanomagnetite catalyst for the synthesis of 4,4´-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) derivatives in solvent-free conditions. The condensation reaction of 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one with aromatic aldehydes affords the title compounds in high yields and short reaction times. The nanocatalyst is reusable for seven times without significant loss of its catalytic activity. Short reaction times, high yields, generality, efficiency, recyclability of the catalyst for seven times, simple purification, clean reaction, and agreement with the green chemistry protocols are some advantages of in this method. the catalyst was characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometer (XRD) and vibrating sample magnetometer (VSM).

Keywords

• Nanomagnetite-Fe3O4
• Nanomagnetite
• 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one. Aromatic aldehyde
• 4´-(Arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol)