Abstract
Nano-tungsten trioxide-supported sulfonic acid was found to be an impressive heterogeneous catalyst for the one-pot condensation of aromatic aldehydes, with β-naphthol to afford 14-Aryl-14H-dibenzo[a,j]xanthene derivatives in good to excellent yields. The major advantages of the present method are short reaction times, simple workup, ease in purification and environmentally benign approach. The catalyst can be recovered easily and reused five times without noticeable loss of activity.
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Schedule a callMore From: Proceedings of the National Academy of Sciences, India Section A: Physical Sciences
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