
Tetrahedron Letters p. 6805 - 6808 (1988)
Update date:2022-08-03
Topics:
Bishop, Roger
Hawkins, Stephen C.
Quibuyen, Titos A. O.
Brooks, Peter R.
(E)-1,2-Hydroxyiminoketones containing an appropriately positioned and substituted olefinic group afford high yields of various 5- and 6-membered heterocyclic systems when reacted with trifluoroacetic acid.Under the same conditions inappropriately substituted unsaturated 1,2-hydroxyiminoketones fragment by means of second order Beckmann process.
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