Reactivity of cyclopalladated compounds. Part 18. Compared reactivity of the Pd-C bonds of two closely related six-membered palladocyclic rings with substituted alkynes. X-Ray and molecular structures of [Pd{C(Ph)=C(R)C(Ph)=C(R)(o-C6H4N=CMeNHPh)}Cl] (R = CO2Et) and [Pd{C(R)[C(CO2Me)C(R)=C(R)C(R)=C(R)][o-C6H 4N=CMe(OH)]}Cl].

1. Dupont, J.
2. Pfeffer, M.
3. Daran, J.
4. Gouteron, J.