89234-41-3Relevant academic research and scientific papers
Photochemical Reactions of Transition Metal Olefin Complexes, 8. Photochemical Addition of 6-Substituted Pentafulvenes to Tricarbonyl (η6-8,8-dimethylheptafulvene)chromium(0)
Kreiter, Cornelius G.,Michels, Eduard
, p. 344 - 354 (2007/10/02)
Under photochemical conditions 6-substituted pentafulvenes (2a - d) displace one CO ligand from tricarbonyl(η6-8,8-dimethylheptafulvene)chromium(0) (1) with formation of a C-C bond between C-6 of a fulvene and C-1 of the heptafulvene ligand leading to substituted dicarbonyl5:3-(cyclopentadienediyl)(isopropylidenecycloheptadienediyl)methane>chromium complexes (3a - 5c).In all cases two diastereomeric complexes are formed, which are separated by column chromatography.They differ in the location of the η3-enyl systems.In 3a, d the enyl system encompasses C-1' to C-3', in 4a, b, d C-1', C-7', and C-8', and in 5b, c C-3' to C-5' in the isopropylidenecycloheptadienediyl residue.The structures of the complexes 3a - 5c were derived from the spectra.
