Alkyl O-vinylcarbohydroximates, lactoxime O-vinyl ethers, and sugar lactoxime O-vinyl ethers undergo a novel thermal rearrangement to afford the corresponding 2-alkyloxazoles, 2-(ω-hydroxyalkyl)oxazoles, and oxazoles bearing a sugar moiety, respectively. This rearrangement can also occur under photochemical conditions.
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Yokoyama et al. (1992) studied this question.
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