Oxidation of 4-aryl-substituted isoxazolin-5-ones. A new synthesis of 2, 5-diaryl-1, 3-oxazin-6-ones

…, C La Rosa, A Marchesini

Index: Beccalli, Egle M.; Rosa, Concetta La; Marchesini, Alessandro Journal of Organic Chemistry, 1984 , vol. 49, # 22 p. 4287 - 4290

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Citation Number: 26

Abstract

While the corresponding alkyl derivatives are unstable? the 4-arylisoxazolones 2 are stable compounds which are synthesized in high yields. From'H NMR data, all these compounds exist mainly in the NH tautomeric form in chloroform solution. Compounds 2a3 and 2i4 have been previously reported.