摘要 : Several Biginelli compounds (dihydropyrimidinones) have been synthesized efficiently and in high yields under mild, solvent-Free and eco-friendly conditions by using 'Grindstone Chemistry Technique' catalyzed by CuCl2 center dot 2... 展开 Several Biginelli compounds (dihydropyrimidinones) have been synthesized efficiently and in high yields under mild, solvent-Free and eco-friendly conditions by using 'Grindstone Chemistry Technique' catalyzed by CuCl2 center dot 2H(2)O and Conc. HCl. The obtained products have been identified by comparison with authentic samples (synthesized by conventional process) and by spectral (H-1 NMR and IR) data and their melting points. 收起