Abstract
A clean, efficient and facile one-pot protocol was developed for the synthesis of a series of new 3,4-substituted coumarins (warfarin analogous compounds) by a one-pot reaction using catalytic amount of Fe3O4 nanoparticles under solvent-free conditions. This green method offers significant advantages in terms of its simplicity, low catalyst loadings, high product yields, recyclability of catalyst and non-toxic nature.
Keywords: Fe3O4 nanoparticles, 3, 4-substituted coumarins, solvent-free, one-pot.
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