95776-73-1Relevant academic research and scientific papers
ETHERS D'ENOLS β-CETONIQUES : SYNTHESE ET REACTIVITE VIS-A-VIS D'ORGANOLITHIENS.
Depezay, Jean-Claude,Saniere, Michele
, p. 1869 - 1876 (2007/10/02)
β-keto enol ethers substituted by ethyl group on carbon 2 are obtained by addition of lithium dimethylcuprate at low temperature on β-oxo α-methylene acetals; alcoholate elimination occurs during hydrolysis.Insaturated aldehydes are obtained by exclusive addition of organolithiocompounds on unhindered carbonyl group of β-keto enol ethers.
ETHERS D'ENOLS β-LITHIES; SYNTHESES D'ALDEHYDES α-ETHYLENIQUES
Duhamel, Lucette,Tombret, Francis,Mollier, Yves
, p. 1 - 16 (2007/10/02)
β-Bromoenol ethers readily undergo bromine-lithium exchange with t-butyllithium in ether or THF at -70 deg C.The resulting lithium products react with aldehydes and ketones to produce, after hydrolysis, β-hydroxyenol ethers (basic medium) or α-unsaturated aldehydes (acidic medium).
