New pyridyl-functionalized organoiron alkynyl complexes. Easy access to polymetallic architectures featuring an electroactive site by simple co-ordination reactions

Autor: Sylvie Le Stang, Frédéric Paul, Claude Lapinte, Dirk Lenz
Rok vydání: 1999
Předmět:
Zdroj: Journal of Organometallic Chemistry. 572:189-192
ISSN: 0022-328X
DOI: 10.1016/s0022-328x(98)00961-9
Popis: The functionalized complexes 3a – d [(dppe)Cp*Fe(CCL)] (L=4-Py, 3-Py, 2-Py) were isolated with good yields from the alkynyl complex 1 [(dppe)Cp*Fe(CCH)] (dppe=1,2-bis(diphenylphosphino)ethane) from the corresponding bromopyridines using a Sonogashira-coupling reaction. These redox active compounds are stable under two redox states and react as usual pyridyl ligands towards methyl iodide or (THF)W(CO) 5 . They allow easy access to the corresponding pyridinium salt 4a or to the dimetallic iron–tungsten complex 5a .
Databáze: OpenAIRE