1 H and 13 C NMR spectral studies of some 4H-3, 1-benzoxazin-4-ones and their 2-acylaminobenzoic acid precursors

AG Osborne, Z Goolamali

Index: Osborne, Alan G.; Goolamali, Zia Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2000 , vol. 56, # 6 p. 1079 - 1100

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Citation Number: 7

Abstract

The 1H and 13C NMR spectra of twelve 4H-3, 1-benzoxazine-4-ones and of their acylaminobenzoic acid precursors are presented. Differentiation between these two series of compounds is best achieved through the characteristic JCH coupling interactions in the high frequency carbonyl region. Some 4H-pyrido [2, 3-d][1, 3] oxazin-4-ones have also been studied and some earlier literature assignments revised.

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