Sulfonic acid functionalized silica as a
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Biswanath Das; Boddu Shashi Kanth; Kongara Ravinder Reddy; Avula Satya Kumar
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Article
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2008
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Journal of Heterocyclic Chemistry
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English
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## Abstract magnified image An efficient oneβpot synthesis of 2βsubstituted benzimidazoles from oβphenylenediamine and aldehydes in the presence of sulfonic acid functionalized silica at room temperature is reported.