115410-89-4Relevant articles and documents
UEBERBRUECKTE NEUNGLIEDRIGE α,β-UNGESAETTIGTE ENOLLACTONE - SYNTHESE AUS 5-PHENYL-1,3,4-OXADIAZIN-6-ON-2-CARBONSAEURE-METHYLESTER UND KONFIGURATIONSANALYSE
Christl, Manfred,Hegmann, Joachim,Reuchlein, Horst,Peters, Karl,Peters, Eva-Maria,Schnering, Hans Georg von
, p. 6433 - 6436 (1987)
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