Ring-chain tautomerism in 1, 3-oxazines

…, K Pihlaja, J Mattinen, G Bernath

Index: Fueloep, Ferenc; Pihlaja, Kalevi; Mattinen, Jorma; Bernath, Gabor Journal of Organic Chemistry, 1987 , vol. 52, # 17 p. 3821 - 3825

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Citation Number: 89

Abstract

1, 3-oxazolireports the tautomeric equilibria were studied with the aid of molec-ular refraction, IR and UV spectroscopy. lV2 These methods cannot result in exact tautomer ratios. It has been found that the products from 3-aminopropanol and carbonyl compounds appear in a higher ratio of cyclic vs. chain structures than those from 2-aminoethanol and carbonyl compounds! In both cases the relative amount of the ring form was increased by ...