Überbrückte neungliedrige α,β-ungesägttigte enollactone - synthese aus 5-phenyl-1,-3,-4,-oxadiazin-6-on-2-carbonsäure-methylester und konfigurationsanalyse
作者:Manfred Christl、Joachim Hegmann、Horst Reuchlein、Karl Peters、Eva-Maria Peters、Hans Georg von Schnering
DOI:10.1016/s0040-4039(00)96880-1
日期:1987.1
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 and the other a lactone functionality, are in equilibrium.
由恶二嗪酮3a和应变的环戊烯衍生物形成的γ-氧杂环丁烷显示经过环周扩环,得到标题化合物2a,2b和5。在5的情况下,两种构型处于平衡,一种具有a ,另一种具有内酯官能度。