Synthesis of new types of strained hydrocarbons by cyclo-codimerization of quadricyclane with norbornenes and their derivatives, catalyzed by palladium complexes

Synthetic Chemistry of Quadricyclane

“…Another catalytic system -Pd(DBA) 3 -CHCl 3 -P(C 6 H 5 ) 3 -is also effective for condensation of Q and norbornene 244 [135]. The reaction is sensitive to the ratio of Q/244 but gives practically equal amount of saturated (245a,b) and unsaturated (246a,b) "codimers" when fourfold excess of Q is employed.…”