SYNTHESIS OF 9,9-dimethyl-12-aryl-8,9,10, 12-tetrahydrobenzo[a]xanthen-11-ones USING Fe(ClO4)3.....

In high yields, FeClO4)3/SiO2 catalysed one-pot synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a] xanthen-11-ones by three component cyclocondensation of aldehydes, 2-naphthol, and dimedone. The benefits of this work were compared to those previously reported.

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