Efficient One-Pot Condensation of β-Naphthol, Aldehydes, and Cyclic 1,3-Dicarbonyl Compounds Catalyzed by p-TSA Under Solvent-Free and Sonication Conditions

Author： Li Jianjun   Li Jia   Fang Jin   Su Weike  

Publisher： Taylor & Francis Ltd

ISSN： 0039-7911

Source： Synthetic Communications, Vol.40, Iss.7, 2010-01, pp. : 1029-1039

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Abstract

A facile and efficient procedure has been developed by one-pot condensation of β-naphthol, aldehydes, and cyclic 1,3-dicarbonyl compounds for the synthesis of 8,9,10,12-tetrahydrobenzo[a]xanthen-11-one or 8,9-dihydrobenzo-[f]cyclopenta[b]chromen-10(11H)-one derivatives catalyzed by p-toluenesulfonic acid under solvent-free and sonication conditions.

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