Highly Efficient Synthesis of 2-Substituted and 1,2-Disubstituted BenzimidazoleDerivatives using Sulfonated Organic Heteropolyacid Salts: as a Recyclable and Green Solid Catalysts

Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

IAUET01_022

تاریخ نمایه سازی: 9 تیر 1392

Abstract:

In thispaper, we introduce two nonconformist ionic liquid [MIMPS](3)PW(12)O(40) and[TEAPS](3)PW(12)O(40) as a green solid acid catalysts for the highly efficient and green synthesis of2-substituted and 1,2-disubstituted benzimidazole derivatives via the one-pot condensation of1,2-phenylenediamine and various aromatic aldehydes.Various aromatic aldehydes were utilized in the reaction and in all situations the desired product were synthesized successfully.This reaction has been carried out in the presence of 1 mol% of catalysts in water at room temperature. The reusability of the catalysts was demonstrated by a five-run test. The described novel synthesis method propose several advantages of safety, short reaction times, mild condition, high yields, simplicity and easy workup compared to the traditional synthesis method.

Authors

Effat Samiei

Department of Chemistry,Islamic Azad University Ayatollah Amoli,Amol, Iran

Seyed Mohammad Vahdat

Department of Chemistry,Islamic Azad University Ayatollah Amoli,Amol, Iran

Saeed Baghery

Young Researchers Club,Islamic Azad University Ayatollah Amoli,Amol, Iran

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