198207-89-5

Upstream product

• 15696-48-7 2,6-di-phenylpyrylium tetrafluoroborate 
• 4440-01-1 lithium phenylacetylide 

Downstream Products

• 198207-92-0 Co₂(CO)6C₂(OC₅H₂(C₆H₅)2)(C₆H₅)⁽¹⁺⁾*PF₆^(1-)=[Co₂(CO)6C₂(OC₅H₂(C₆H₅)2)(C₆H₅)]PF₆ 

Relevant academic research and scientific papers

Synthesis, structure and reactivity of acetylenic Co2(CO)6 pyrylium salts. Electronic influence of the Co2(CO)6 acetylenic fragment

The formation of new pyrylium salts bearing in the 7 position an acetylenic Co2(CO)6 fragment is described. X-ray analysis showed that the γ carbon of the pyrylium ring does not interact with a cobalt atom. However, IR values, relating to the carbonyl stretching band, suggested that a part of the positive charge is delocalized on the cluster core. Finally, the reactivity of these cationic complexes towards nucleophiles is reported.