Montmorillonite K-10 mediated Erlenmeyer synthesis of 4-arylmethylene-2-phenyl-5 (4H)-oxazolones

NN Karade, SG Shirodkar, BM Dhoot…

Index: Karade; Shirodkar; Dhoot; Waghmare Journal of Chemical Research, 2005 , # 1 p. 46 - 47

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Citation Number: 4

Abstract

Aromatic aldehydes and hippuric acid in acetic anhydride undergoes classical Erlenmeyer synthesis in the presence of a catalytic amount of Montmorillonite K-10 to afford the corresponding azlactones in excellent yields with high selectivity. The azlactone formation does not proceed in the absence of either acetic anhydride or Montmorillonite.