1305342-71-5Relevant academic research and scientific papers
Nucleophilic reactions of 9-isopropyl-2,4-dimethoxy-7,12-dimethyl-3- (phenylsulfonyl)benzo[a]heptalene with lithium dialkylamides
El Rayes, Samir,Linden, Anthony,Abou-Hadeed, Khaled,Hansen, Hans-Juergen
experimental part, p. 1195 - 1202 (2011/06/11)
Treatment of the title compounds with lithium piperidinide in THF at-5 °C leads to an exchange of the two methoxy groups by piperidino substituents (Scheme 2). On the other hand, lithium diisopropylamide (LDA) in THF at-5 °C induces the formation heptalen
