27424-77-7Relevant articles and documents
Acylation Reaction of γ,β-Unsaturated β-Keto Esters and of Ethyl Hydrogen Malonate. Synthesis of 6-Alkenyl-5-ethoxycarbonyl-2,3-dihydro-4H-pyran-4-ones and 4,5-Dioxo-2,3,7,8-tetrahydro-4H,5H-pyranopyran Derivatives
Chantegrel, Bernard,Nadi, Abdel-Ilah,Gelin, Suzanne
, p. 13 - 16 (2007/10/02)
The syntheses of 6-alkenyl-5-ethoxycarbonyl-2,3-dihydro-4H-pyran-4-one derivatives by acylation of γ,β-unsaturated β-keto esters or by diacylation of ethyl hydrogen malonate with α,β-unsaturated acyl chlorides are described.These compounds were converted to 4,5-dioxo-2,3,7,8-tetrahydro-4H,5H-pyranopyran derivatives.