Tetrahedron p. 3535 - 3546 (1989)
Update date:2022-09-26
Topics:
Hassner, Alfred
Fischer, Bilha
5-Alkoxy and 2-alkoxyoxazoles wre shown to react with N=N, C=N or C=O dienophiles to form products that in most cases can be explained to result from a Diels-Alder addition, or by nucleophilic attack of the oxazole on the dienophile, followed by rearrangement.The products are triazolines, imidazolines or oxazolines respectively.Relative reactivities were established and mechanistic pathways discussed.
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