Studies on diazepines. XXII. Synthesis of monocyclic 1,4-dihetero seven-membered ring compounds using thermal valence bond isomerization of tricyclo[4.1.0.02.5]heptane systems
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Kurita,Iwata,Sakai,Tsuchiya
p. 4572 - 4580
(2007/10/02)
3-Azatricyclo2,5>heptanes: Synthons for Novel Monocyclic 1,4-Dihetero Seven-membered Ring Compounds
Heating the 3-azatricyclo2,5>heptanes (2) prepared from pyridine via 2-azabicyclohex-5-enes (1) results in ring opening to give the corresponding 1,4-dihetero seven-membered ring compounds (3).