?-Aromatic complexes of metal carbonyls in the pyrylium salt series

Autor: O. Yu. Okhlobystin, A. G. Milaev
Rok vydání: 1985
Předmět:
Zdroj: Chemistry of Heterocyclic Compounds. 21:491-495
ISSN: 1573-8353
0009-3122
Popis: By the reaction of lithium derivatives of cyclopentadienylmagnesiumtricarbonyl, cyclopentadienylrheniumtricarbonyl, and benzenechromiumtricarbonyl with 2,6-disubstituted pyrylium salts the corresponding 4H-pyrans have been synthesized, and the oxidative dehydration of these has given pyrylium cations containing the stated organometallic groups in position 4. It has been shown that the π-complexes obtained readily exchange the oxygen of the pyrylium ring for other heteroatoms with the formation of heterocyclic compounds with metallocarbonyl substituents.
Databáze: OpenAIRE