929606-65-5Relevant academic research and scientific papers
Synthesis of β,γ-unsaturated ketones by allylation of pentamethylcyclopentadienyl ketones followed by removal of pentamethylcyclopentadiene
Iwasaki, Masayuki,Morita, Eiji,Uemura, Minoru,Yorimitsu, Hideki,Oshima, Koichiro
, p. 167 - 169 (2007)
A new route to β,γ-unsaturated ketones is disclosed. Aryl pentamethylcyclopentadienyl ketones underwent allylation with allyldimethylaluminum to yield the corresponding alcohols. Heating the alcohols in boiling toluene resulted in removal of pentamethylcy
Synthesis of β,γ-unsaturated ketones from acid chlorides through carbon-pentamethylcyclopentadienyl bond formation and cleavage
Uemura, Minoru,Iwasaki, Masayuki,Morita, Eiji,Yorimitsu, Hideki,Oshima, Koichiro
experimental part, p. 2400 - 2405 (2009/09/26)
Reaction of acid chlorides with lithium pentamethylcyclopentadienide afforded the corresponding pentamethyl-cyclopentadienyl ketones in high yield. These ketones were treated with an allylaluminum reagent to form the corresponding 3-butenyl alcohols. Removal of pentamethylcyclopentadiene upon heating or treatment with a catalytic amount of trichloroacetic acid yielded the corresponding β,γ-unsaturated ketones in good yields.
