作者:Naga Durgarao Koduri、Halee Scott、Bethany Hileman、Justin D. Cox、Michael Coffin、Lindsay Glicksberg、Syed R. Hussaini
DOI:10.1021/ol202812d
日期:2012.1.20
catalyst has been found to be an effective catalyst for the synthesis of enaminones by coupling thioamides with α-diazodicarbonyl compounds. The reaction is successful in converting primary, secondary, and tertiary thioamides into their corresponding enaminones. The reaction is also suitable for the synthesis of chiral enaminones.
Abstract Acetyl-substituted heterocyclic enamines 4 were synthesized from lactim ethers 2 and acetylacetone through condensation and deacetylation reactions, and they, along with the ester-substituted heterocyclic enamines 6, reacted with diethylazodicarboxylate to afford C-adducts 7 and 8 in excellent yields.