Acylation of 1-arylpyrazolidin-3-ones

GA Golubeva, NI Vorozhtsov, LA Sviridova

Index: Golubeva; Vorozhtsov; Sviridova Chemistry of Heterocyclic Compounds, 2000 , vol. 36, # 5 p. 552 - 556

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Abstract

Abstract Acylation of 1-arylpyrazolidin-3-ones using aromatic acid anhydrides and chlorides in the presence of base occurs principally at the oxygen atom to give 1-aryl-3-acyloxy-2- pyrazolines, subsequent heating or microwave irradiation of which leads to the