A Facile One-Pot Synthesis of Chromen-2-one Derivatives Fused with Five Membered Heterocycles

S Tasqeeruddin, AS Al-Arifi…

Index: Tasqeeruddin; Al-Arifi, Abdullah S.; Dubey Asian Journal of Chemistry, 2013 , vol. 25, # 12 p. 6987 - 6988

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Abstract

Abstract A facile one-pot synthesis of 3-benzoxazol-2-yl-chromen-2-ones (4) by the condensation of chromen-2-one-3-carboxylates (1) with o-hydroxy aniline (3) is being reported in this paper. Alternatively 3-benzoxazol-2-yl-chromen-2-ones are prepared from chromen-2-one-3-carboxylic acids (2). The structures of all the products have been established by their spectral and analytical data.