Tetrahedron Letters p. 4833 - 4836 (1984)
Update date:2022-08-05
Topics:
Warrener, Ronald N.
Evans, David A. C.
Russell, Richard A.
Diels Alder reactions involving tricyclic quinones of type (3) proceed at the internal pi-bond unless the terminal pi-bond is substituted with an activating substituent, e.g.SO2Ar.Thermal isomerization of the internal adducts leads to the formation of linear but aromatised products some of which can be made to retain their bridge.
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