Scheme 6.
Computed formation of intermediates type of Int2, Int3 and Int5 for enynes 9 a and 9 b. L=PMe3. Free energies in kcal mol−1.
Computed formation of intermediates type of Int2, Int3 and Int5 for enynes 9 a and 9 b. L=PMe3. Free energies in kcal mol−1.