SO3H activated zeolite-Y as a nanostructured heterogeneous catalyst for synthesis of tri-substituted imidazoles

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 138

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شناسه ملی سند علمی:

ISOC27_173

تاریخ نمایه سازی: 19 اسفند 1399

چکیده مقاله:

Imidazoles are important N-containing heterocycles which have emerged as versatile biologically active compounds possessing applications. Tri-substituted midazoles or 2,4,5-triaryl-1H-imidazoles are generally synthesized in a one-pot three-component condensation of aldehydes, 1,2-diketones, and ammonium acetate. Although various catalysts have been proposed for tri-substituted imidazoles synthesis, exploration for greener and cleaner synthetic strategies still remains as an active research.1-4 Herein, SO3H@zeolite-NaY was used as a green and high active nanocatalyst for the synthesis of tri-substituted imidazole derivatives via solvent-free cyclocondensation of different aldehydes, benzil and ammonium acetate. (Fig 1) This economical chemical procedure has the advantages such as excellent yield in short reaction times, convenient manipulation and high purity of products, the use of nontoxic and heterogeneous acid catalyst with good reusability

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نویسندگان

Zahra Seyedzade

Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷, Tehran, Iran

Zohre Zarnegar,

Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷, Tehran, Iran

Mehdi Kalhor

Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷, Tehran, Iran