Application of the Immobilized Sulfonic Acid on the Magnetic Cobalt Ferrite Nanocatalyst (CoFe2O4/SiO2/SO3H) in the Synthesis of Organic Materials
محل انتشار: بیست و ششمین سمینار شیمی آلی ایران
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 425
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شناسه ملی سند علمی:
ISOC26_064
تاریخ نمایه سازی: 2 شهریور 1398
چکیده مقاله:
Sulfuric acid as a homogeneous Bronsted acid catalyst is widely applied for the synthesis ofchemical compounds, but some drawbacks such as tedious workup, equipment corrosion, andcontamination of products restricted the use of this catalyst [1]. The heterogenization ofBronsted acids can solve these drawbacks and many solid supports such as magnetic nanoparticlesare good nominate for this purpose [2]. On the other hand, spirooxindoles are commonstructures in alkaloids skeleton which have privileged chemotypes for antiviral drug development[3]. In this study, chlorosulfonic acid was supported onto the CoFe2O4/SiO2 and theheterogeneous magnetic solid acid (CoFe2O4/SiO2/SO3H) was characterized and used for thesynthesis of spirooxindoles derivatives (Fig. 1). The results showed that the catalyst has excellentefficiency and the reusability and the products were synthesized at a short time (4 min)in green media (Water/EtOH 1:1) with high yield.
نویسندگان
Bardia Zamani
Department of Chemistry, Faculty of Science, University of Birjand, Birjand, Iran
Mohammad Ali Nasseri
Department of Chemistry, Faculty of Science, University of Birjand, Birjand, Iran
Ali Allahresani
Department of Chemistry, Faculty of Science, University of Birjand, Birjand, Iran
Kaveh Hemmat
Department of Chemistry, Faculty of Science, University of Birjand, Birjand, Iran