Vinylcyclopropyl substituted diazenes (e.g. 1 and 15) rearrange when healed
. The chemistry takes place via the formation of a trimethylenemethane (TMM
) diyl and provides access to eight-membered rings. When the cyclopropane i
s fused to a five-membered ring (e.g. 15) rearrangement leads to a structur
e resembling the taxotere framework. (C) 2001 Elsevier Science Ltd. All rig
hts reserved.