Benzenoid spacer

The Wender group has extensively studied the Q+T)-meta photocycloaddition reaction of double bonds and benzenoids, which furnishes highly condensed polycyclic compounds not accessible by other means. An intramolecular version, with the correct spacer, can produce such a situation as shown in Scheme 60, whereupon uiuaveling leads to the pseudoguaiane rudmollin [98]. 

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