Sequential cycloaddition-cycloreversion-cycloaddition-cope rearrangement with an annelated norbornadiene and electrophilic dienes. unusual [π^2"s + π^2"a + σ^2"a] transformation of a pentacyclo-[11.4.0.1^7^,^1^0.0^4^,^1^3.0^6^,^1^1]octadeca-3,8,14,17-tetraene .1

Gravett, E.C. ; Howard, J.A.K. ; Mackenzie, K. ; Shi-Xiong, L. ; Karadakov, P.B.

Amsterdam : Elsevier