Journal of heterocyclic chemistry

The synthesis of novel crown ethers, part X, 4??propyl??and 3??ethyl??4??methylchromenone??crown ethers

E Tiftikçi, ÇA Erk

Index: Tiftikci, Esra; Erk, Cakil Journal of Heterocyclic Chemistry, 2004 , vol. 41, # 6 p. 867 - 871

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Citation Number: 6

Abstract

Abstract Starting from ethyl propionylacetate, and ethyl 2-ethylacetoacetate we prepared 4- propyl-7, 8-, 4-propyl-6, 7-, 3-ethyl-4-methyl-7, 8-and 3-ethyl-4-methyl-6, 7-dihydroxy-2H- chromenones which were allowed to react with the bis-dihalides or ditosylates of glycols in