455892-26-9Relevant academic research and scientific papers
Reactions of Ru(C≡CPh)(L2)Cp* (L2 = dppm, dppe) with tetracyanoethene: Cycloaddition, formation of monodentate dppm and dppmO complexes and migration of CN to ruthenium
Bruce, Michael I,Skelton, Brian W,White, Allan H,Zaitseva, Natasha N
, p. 141 - 150 (2002)
The reaction of C2(CN)4 with Ru(C≡CPh)(dppm)Cp* in THF has given the anticipated tetracyanobuta-1,3-dien-2-yl complex Ru{C[=C(CN)2]CPh=C(CN)2}(dppm)Cp* (3). In benzene, η3-cyano-enyl complexes complex 3 rearranges to the cyanoruthenium-ylid complex Ru(CN){C(CN)=C[CPh=C(CN)2]PPh2CH2PPh 2}Cp* (6). A possible reaction sequence, involving a zwitterionic intermediate such as Ru(δ-)(CN){C(CN)C(δ+)CPh=C(CN)2}(dppm-P)Cp* D, is discussed. Only the η1-dienyl complex 7 is obtained from Ru(C≡CPh)(dppe)Cp* and TCNE.
