Preparation of thermodynamically stable enol silyl ethers of γ,δ-unsaturated ketones by palladium-catalyzed decarboxylation-allylation of allyl 2,3-disubstituted 3-trimethylsiloxyacrylates
作者:Jiro Tsuji、Yukihiro Ohashi、Ichiro Minami
DOI:10.1016/s0040-4039(00)96134-3
日期:——
Allyl 2,3-disubstituted 3-trimethylsiloxyacrylates underwent palladium-catalyzed intramolecular decarboxylation-allylation to afford enol silyl ethers of γ,δ-unsaturated ketones
Palladium‐Catalyzed Decarbonylative Dehydration for the Synthesis of α‐Vinyl Carbonyl Compounds and Total Synthesis of (−)‐Aspewentins A, B, and C
作者:Yiyang Liu、Scott C. Virgil、Robert H. Grubbs、Brian M. Stoltz
DOI:10.1002/anie.201505161
日期:2015.9.28
carbonyl compounds to form a quaternary stereocenter is a challenging transformation. It was discovered that δ‐oxocarboxylic acids can serve as masked vinyl compounds and be unveiled by palladium‐catalyzed decarbonylative dehydration. The carboxylic acids are readily available through enantioselective acrylate addition or asymmetricallylicalkylation. A variety of α‐vinyl quaternary carbonyl compounds are
Facile generation of a reactive palladium(II) enolate intermediate by the decarboxylation of palladium(II) .beta.-ketocarboxylate and its utilization in allylic acylation