توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Fe3O4–chitosan nanoparticles as a robust magnetic catalyst for efficient synthesis of 5–substituted hydantoins using zinc cyanide
نویسنده(ها): ،
اطلاعات انتشار: Iranian Journal of Catalysis، ششم،شماره۱، ۲۰۱۶، سال
تعداد صفحات: ۸
In this paper, Fe3O4–chitosan nanoparticles were prepared by the immobilization of chitosan on the surface of Fe3O4 nanoparticles. Then, the 5–substituted hydantoins were synthesized from the condensation of aldehyde derivatives, ammonium carbonate and zinc cyanide as a well–known cyanating agent by the magnetic Fe3O4–chitosan nanoparticles under neat conditions. Fe3O4–Chitosan nanocatalyst as a renewable hybrid catalyst was easily recovered by an external magnet and reused for 4 times without obvious drop in its catalytic activity. The purpose of this research was to provide an easy method for the synthesis of 5–substituted hydantoins in high yields and short reaction times by a robust and magnetic recoverable catalyst.
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