95839-92-2Relevant academic research and scientific papers
Formal aza-Michael additions to tropone: Addition of diverse aryl- and alkylamines to tricarbonyl(tropone)iron and [(C7H7O)Fe(CO)3]BF4
Huang, Zhiyuan,Phelan, Zaki K.,Tritt, Rachel L.,Valent, Shelby D.,Griffith, Daniel R.
, p. 3432 - 3434 (2018)
A formal aza-Michael addition to tropone by way of tricarbonyl(tropone)iron and/or the tetrafluoroborate salt formed via protonation of the complex is reported. Tricarbonyl(tropone)iron smoothly undergoes the direct aza-Michael reaction with unhindered aliphatic amines under solvent free conditions in good yields. Meanwhile, the known cationic complex [(C7H7O)Fe(CO)3]BF4 (whose reaction with a small number of nucleophiles was previously reported) undergoes addition with an even broader array of amine nucleophiles. Finally, it was discovered that protecting the aza-Michael adduct as a carbamate was necessary for oxidative demetallation of the complex.
Cyclopentannulation reactions with organoiron reagents. facile construction of functionalized hydroazulenes
Rosenblum,Watkins
, p. 6316 - 6322 (2007/10/02)
Troponeiron tricarbonyl, 2-methyltroponeiron tricarbonyl, and 4-methyltroponeiron tricarbonyl are converted to fluxional tropyliumiron tricarbonyl salts by treatment with either trimethylsilyl or di-n-butylboron triflate. These pentadienyliron cations react with (η1-allyl) (η1-propargyl)-, and (η1-allenyl)Fp complexes [Fp = C5H5Fe(CO)2] to give ketohydroazulene cycloadducts derived, in each reaction, from a single tautomeric tropylium cation. The further reaction of two such cycloadducts 14 and 22b with lithium dimethyl cuprate gave tricyclic ketones 25a and b, through a sequence depicted as involving initial formation of an anionic acyliron complex, followed by migratory insertion and an intramolecular aldol condensation.
Synthesis and Molecular Structure of Hexacarbonyl(tropene)diiron
Morita, Noboru,Kabuto, Chizuko,Asao, Toyonobu
, p. 1677 - 1678 (2007/10/02)
Molecular structure of hexacarbonyl(tropene)diiron has been investigated by X-ray diffraction studies.
