Journal of heterocyclic chemistry

Imidazolyl derivatives of the chroman ring. 1

P Cozzi, N Mongelli, A Pillan

Index: Cozzi, Paolo; Mongelli, Nicola; Pillan, Antonio Journal of Heterocyclic Chemistry, 1984 , vol. 21, p. 311 - 315

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Citation Number: 7

Abstract

Abstract The synthesis of 2-(1H-imidazol-1-yl)-2, 3-dihydro-2H-1-benzopyran-4-ones (I) through 3-bromo-2, 3-dihydro-4H-1-benzopyran-4-ones or more conveniently through chroman ring closure from 2-(1H-imidazol-1-yl)-2′-hydroxyacetophenones is described. The ring closure also works well for the pyrazolyl derivatives. Compounds I and the corresponding imidazolylchromanols,-chromenes, and-chromans derived from the former, ...