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Tetrabutylammonium bromide (TBAB): A neutral and efficient catalyst for the synthesis of biscoumarin and 3,4-dihydropyrano[c]chromene derivatives in water and solvent-free conditions
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Khurana, J. M.; Kumar, S. Tetrabutylammonium bromide (TBAB): A neutral and efficient catalyst for the synthesis of biscoumarin and 3,4-dihydropyrano[c] chromene derivatives in water and solvent-free conditions. Tetrahedron Lett. 2009, 50, 4125-4127.
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Khurana, J.M.1
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