Chinese Chemical Letters

Diketene-based neat four-component synthesis of the dihydropyrimidinones and dihydropyridine backbones using silica sulfuric acid (SSA)

S Rostamnia, K Lamei

Index: Rostamnia, Sadegh; Lamei, Kamran Chinese Chemical Letters, 2012 , vol. 23, # 8 p. 930 - 932

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Citation Number: 27

Abstract

Heterocyclic skeleton building blocks to afford dihydropyrimidinones and dihydropyridines based on neat adducts of diketene, alcohols and aldehydes via silica sulfuric acid (SSA) catalyzed ring opening of diketene in four-component Biginelli-type and Hantzsch-type reactions are presented.