87737-51-7Relevant academic research and scientific papers
Transfer and coupling of zirconocene-bound alkenyl ligands. An alternative route to (s-trans-η4-conjugated diene)ZrCp2 complexes
Czisch, Peter,Erker, Gerhard,Korth, Hans-Gert,Sustmann, Reiner
, p. 945 - 947 (2008/10/08)
Dibenzylzirconocene (3a) and (s-trans-η4-trans ,trans-1,4-diphenylbutadiene)zirconocene (5) are formed rapidly upon irradiation of benzyl(β-styryl)-zirconocene (2a) in benzene at ambient temperature. Trapping and crossover experiments using benzyl chloride and (β-styryl)zirconocene chloride and the kinetic influence of added moderators trimethyl phosphite and triphenylphosphine in addition to ESR experiments point to a radical reaction mechanism for alkenyl group transfer. Transfer and coupling of alkenyl ligands can also be initiated in a dark reaction when starting from methyl(β-styryl)zirconocene (2b).
