
Tetrahedron Letters p. 2049 - 2052 (1992)
Update date:2022-08-03
Topics:
Fannes, Christine C.
Hoornaert, Georges J.
The Diels-Alder adducts from the reaction of 3-amino-2H-1,4-oxazin-2-ones 1b-d with olefins in toluene at reflux, undergo ring transformation yielding previously unknown 5,6-dihydro-2-oxo-2H-pyran-6-carbonitriles 3. In some cases the latter are converted
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