A novel nano alumina based Co (II) complex catalyst for synthesis of 5-substituted-1H-tetrazoles
Amin Khoshnoud - Hossein Behniafar - Ali Reza Pourali
Amin Khoshnoud - Hossein Behniafar - Ali Reza Pourali
School of Chemistry, Damghan University, Damghan 36715-364, Iran - School of Chemistry, Damghan University, Damghan 36715-364, Iran - School of Chemistry, Damghan University, Damghan 36715-364, Iran
زبان مقاله : انگلیسی |
تعداد صفحات مقاله : 1 صفحه |
نوع مقاله : چکیده |
ISC کد مقاله در : ISC4026_524613
چکیده
The use of heterogeneous catalysts for organic synthesis is rapidly growing over homogeneous catalytic systems because of their several advantages such as high stability and tolerant to harsh reaction conditions, environmental friendliness, reusability of the catalyst, and easy to purify the products [1]. Numerous methods have been reported in the literature for synthesis of 5-substituted-1H-tetrazoles, but much of them have some drawbacks including the use of strong Lewis acids or expensive and toxic metals and employment of acidic media [2]. Many methods for the synthesis of tetrazoles used high polar solvents such as DMF requires harsh reaction conditions [3].Tetrazoles as one of the most important synthetic heterocyclic compounds have so many applications in organic chemistry, the photographic industry, coordination chemistry, explosives, and in particular, medicinal chemistry [4]. In this research, we synthesized a new heterogeneous catalyst using alumina nanoparticles. This catalyst was synthesized after formation a chain on alumina containing ester groups and then converting to amide groups by using of 1,2- diaminoethane, for having better functional group as ligand. Complexation of Co (II) with this functional group yielded a novel heterogeneous nano catalyst. Then, a small amount of the catalyst was used to one pot reactions between aldehyde derivatives (1 mmol), hydroxylamine hydrochloride (0.10 mg, 1.5 mmol), sodium azide (0.10 g, 1.5 mmol), distilled water (5 mL) as green solvent and in room temperature to produce 5-substituted-1H-tetrazoles derivatives (Scheme 1), the products were obtained with high efficiency in a short time.کليدواژه ها
tetrazoles, nano, alumina, heterogeneous catalyst, Co(II) complexنحوه استناد به مقاله
در صورتی که می خواهید در اثر پژوهشی خود به این مقاله ارجاع دهید، به سادگی می توانید از عبارت زیر در بخش منابع و مراجع استفاده نمایید:Khoshnoud , Amin , 1398 , A novel nano alumina based Co (II) complex catalyst for synthesis of 5-substituted-1H-tetrazoles , دومین کنفرانس ملی کاتالیست انجمن شیمی ایران
انتشار دهنده
محل انتشار : دومین کنفرانس ملی کاتالیست انجمن شیمی ایرانمشخصات برگزارکننده همایش : دانشگاه خوارزمي
تعداد مقالات : 215
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