85877-59-4Relevant academic research and scientific papers
PREPARATION ET REACTIVITE DU DERIVE LITHIE ISSU DU DIOXOLANNE DU -CETO PENTANOATE DE TRIMETHYLSILYLE.
Moreau, Jean Louis,Couffignal, Rene
, p. 5271 - 5274 (1982)
The organolithium reagent 4 issued from trimethylsilyl 4,4-ethylendioxypentanoate 3 reacts with ketones ; it affords β-hydroxy-acids 7 and β-ethylenic ketones 8.This reaction is an efficient route for carbonyl olefination. 4 also acts towards mixed carboxylic and carbonic anhydrides as a homoenolate equivalent.
REACTIVITE DU DERIVE LITHIE ISSU DU DIOXOLANNE DU LEVULATE DE TRIMETHYLSILYLE VIS-A-VIS DES DERIVES CARBONYLES: UNE METHODE DIRECTE D'OLEFINATION DES ALDEHYDES AROMATIQUES ET DES CETONES
Moreau, Jean-Louis,Couffignal, Rene
, p. 1 - 12 (2007/10/02)
At -60 deg C and in ether, the organolithium reagent produced by trimethylsilyl 4,4-ethylenedioxypentanoate reacts with aldehydes and ketones, and gives the expected β-hydroxyacids.The β-ethylenic ketones are isolated when the condensation is carried out
