
Tetrahedron Letters p. 6433 - 6436 (1987)
Update date:2022-07-30
Topics: SYNTHESE
Christl, Manfred
Hegmann, Joachim
Reuchlein, Horst
Peters, Karl
Peters, Eva-Maria
Schnering, Hans Georg von
The γ-oxoketenes, which are formed from oxadiazinone 3a and strained cyclopentene derivatives, are shown to undergo a pericyclic ring enlargement to give the title compounds 2a, 2b, and 5.In the case of 5 two configurations, one having a cis and the other
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