4 6‐Dimethylenetricyclo[3.3.0.0^3,7]octane‐2‐one and 2,4,6‐Trimethylenetricyclo[3.3.0.0^3,7]octane

Abstract

Following the synthesis of the “stelladienes” 1 and 2 it has now been possible to prepare the triene 3 in five steps from readily accessible starting compounds. The highly strained triene 3 has two 1,5-hexadiene units and readily rearranges into the tricyclo[5.2.1.04,10] decadiene derivative 4.