Sulfuric acid immobilized on silica: A versatile and reusable heterogeneous catalyst for the synthesis of phenanthrimidazole derivatives

نویسندگان

  • Abbas Razavi Department of Chemistry, Faculty of Basic Sciences, Islamic Azad University , Mashhad Branch, Mashhad 91735-413, Iran
  • Hasan Mohammadi Department of Chemistry, Faculty of Basic Sciences, Islamic Azad University , Mashhad Branch, Mashhad 91735-413, Iran
  • Hossein Behmadi Department of Chemistry, Faculty of Basic Sciences, Islamic Azad University , Mashhad Branch, Mashhad 91735-413, Iran
  • Marjan Ramezani Department of Chemistry, Faculty of Basic Sciences, Islamic Azad University , Mashhad Branch, Mashhad 91735-413, Iran
  • Mina Roshani Department of Chemistry, Faculty of Basic Sciences, Islamic Azad University , Mashhad Branch, Mashhad 91735-413, Iran
  • Seyed Mahdi Saadati Young Researchers Club, Islamic Azad University, Mashhad Branch, Mashhad, Iran
چکیده مقاله:

A new, convenient, efficient, and cost-effective one-pot synthesis of 1Hphenanthro[9,10]imidazol-2-yl from phenanthraquinone and aldehydes, using sulfuric acidimmobilized on silica as catalyst is described. The present methodology offers severaladvantages such as excellent yields, simple procedure, shorter reaction times, the use ofinexpensive reagents, easy recovery and eco-friendly. In addition to these, 2-alkylphenanthrimidazole is obtained from triethyl orthoesters in good yields.

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منابع مشابه

sulfuric acid immobilized on silica: a versatile and reusable heterogeneous catalyst for the synthesis of phenanthrimidazole derivatives

a new, convenient, efficient, and cost-effective one-pot synthesis of 1hphenanthro[9,10]imidazol-2-yl from phenanthraquinone and aldehydes, using sulfuric acidimmobilized on silica as catalyst is described. the present methodology offers severaladvantages such as excellent yields, simple procedure, shorter reaction times, the use ofinexpensive reagents, easy recovery and eco-friendly. in additi...

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Silica sulfuric acid as an efficient and reusable heterogeneous catalyst for the synthesis of formamidines from the diaminomaleonitrile

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silica sulfuric acid as an efficient and reusable heterogeneous catalyst for the synthesis of formamidines from the diaminomaleonitrile

silica sulfuric acid as an efficient and reusable heterogeneous catalyst has been used for the preparation of amidines 2 from formimidate 1 by reaction with aromatic amines at room temperature in good to excellent yields. imidate was prepared by treatment of equimolar quantities of triethyl orthoformate and diaminomaleonitrile in refluxing dioxane. all the compounds were characterized fully by ...

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fe3o4@silica sulfuric acid nanoparticles as a potent and recyclable solid acid catalyst for the synthesis of indole derivatives

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عنوان ژورنال

دوره 2  شماره 3

صفحات  183- 187

تاریخ انتشار 2009-10-31

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