Synthesis and Structure of New [5]Ferrocenophane
A. V. Medved’koa, A. V. Churakovb, D. P. Krut’koc, and S. Z. Vatsadzea,*
a Zelinsky Institute of Organic Chemistry,
Russian Academy of Sciences, Moscow, 119991 Russia
b Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia
c Department of Chemistry, Moscow State University,
Moscow, 119991 Russia
Correspondence to: *e-mail: zurabych@gmail.com
Received 14 March, 2023
Abstract—The first example of intramolecular diastereoselective domino reaction of ferrocene 1,1'-bis-enone to [5]ferrocenophane initiated with sodium ethoxide was found. The product is [5]ferrocenophane with two pyridyl and one ethoxy substituents arranged asymmetrically in a five-carbon bridge. Diffraction studies showed that ferrocene is in almost ideal eclipsed conformation. The fan conformation found in the crystal is also preserved in solution, which was determined by NMR spectroscopy.
Keywords: ferrocenophane, chalcone, domino reaction
DOI: 10.1134/S0012500823600840