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摘要
A concise and CuI nanoparticle-catalyzed synthesis of tetrahydrochromenediones and dihydropyrano[c]chromenediones under solvent-free grinding conditions via the three-component condensation reaction of Meldrum's acid, an aromatic aldehyde, and an active methylene compound, including dimedone or 4-hydroxycoumarin, was developed. This new method gives desirable advantages such as simple reaction setup, very mild reaction conditions, production of the desired products in high yields without by-products, recyclability of the catalyst, and environmentally benign procedure.
- 出版日期2016-7
