Tetrabutylammonium bromide (TBAB): a neu
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Jitender M. Khurana; Sanjay Kumar
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Article
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2009
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Elsevier Science
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French
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A simple, efficient and ecofriendly procedure has been developed using tetrabutylammonium bromide as catalyst for the synthesis of biscoumarin and dihydropyrano[c]chromene derivatives in water and solvent-free neat conditions. The present methodology offers several advantages such as excellent yield