The synthesis of various highly functionalized caged systems suitable as high energy
density materials, which were assembled by utilization of an olefin cross-metathesis
strategy, is reported. E-Selectivity was observed during the cross-metathesis by using
Grubbs second generation catalyst (G-II) and N-tolyl Grubbs catalyst in most of the cross-
metathesis products. The stereochemistry of the olefin formed during the cross-metathesis
has been determined unambiguously by a single-crystal X-ray diffraction study.

Synthesis of various highly functionalized caged systems suitable for high energy density
materials was accomplished by utilization olefin cross metathesis strategy. Here we
observed 100% E selectivity during cross-metathesis by using Grubbs II and N-tolyl Grubbs
catalyst. The stereochemistry of olefin formed by cross-metathesis has been determined
unambiguously by single-crystal X-ray diffraction study.