Background: A convenient method for the efficient synthesis of xanthenedione derivatives
4a-r using a dimedone/1,3 cyclohexanedione and various aldehydes in the presence of POMV1 and
water as a green solvent is described.
Results: This approach is environmentally benign with clean synthetic procedure, short reaction time,
easy work-up procedure, excellent yield (80-93%) and regeneration of catalyst which made this protocol
efficient and safe.
Conclusion: Some novel derivatives were also synthesized using this protocol.
Keywords: Catalyst, 1, 8-dioxo-octahydroxanthenes, green, 11-molybdo-1-vanado phosphoric acid, regeneration, water.
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