Attempted synthesis of tricyclo[3.3.2.0(2,4)]dec-2(4)-ene

The synthesis of tricyclo[3.3.2.0(2,4)]dec-2(4)-ene (3) has been attempted using a route analogous to those previously developed for 1 and 2. Complications were encountered in the synthesis. The conformational problems of the larger polycyclic structures in the synthesis of 3 must be more difficult to overcome than the increased angle strain of the smaller rings when 1 or 2 are synthesized.