Journal of the Chemical Society. Perkin transactions I p. 2878 - 2883 (1981)
Update date:2022-08-05
Topics:
Baydar, Ahmet E.
Boyd, Gerhard V.
Lindley, Peter F.
Watson, Frank
Manley, Paul W.
Storr, Richard C.
Flash-vacuum pyrolysis of the 1,3-oxazin-2-ones (1) and (9) gave the valence-isomeric carbamoylvinyl isocyanates (8) and (10), respectively, which recyclised to the oxazinones at room temperature.The oxazinones reacted with N-arylmaleimides in a Diels-Alder fashion; with 1-diethylaminopropyne, however, the first oxazinone yielded the isomeric pyridones (17) and (21), whose structures were determined by X-ray analysis.
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