104819-24-1Relevant articles and documents
Palladium-catalyzed intramolecular decarboxylative allylic arylation of α-aryl-γ-methylidene-δ-valerolactones
Shintani, Ryo,Tsuji, Takaoki,Park, Soyoung,Hayashi, Tamio
supporting information; experimental part, p. 1697 - 1699 (2010/07/07)
A palladium-catalyzed intramolecular decarboxylative cyclization of α-aryl-γ-methylidene-δ-valerolactones, followed by olefin isomerization, has been developed to give fused polycyclic aromatic compounds under mild conditions. The process described here can be regarded as a formal decarboxylative allylic arylation without using a pre-formed organometallic nucleophile. The reaction can be conducted on a gram scale and the products thus obtained are further derivatized with ease.
REACTIONS OF β-KETO ESTERS WITH 2-CYANO-1,2,5,6-TETRAHYDROPYRIDINES
Chapman, R. F.,Phillips, N. I. J.,Ward, R. S.
, p. 5229 - 5234 (2007/10/02)
Reaction of the sodium salts of β-keto esters 13a and 13b with the 2-cyano-tetrahydropyridines 11 and 12 afforded the 4-substituted piperidine derivatives 21-23.The structures were assigned on the basic of their (1)H-and (13)C-NMR spectra and by comparison with the model compounds 24-26.The stereochemistry and the mechanism of the reactions are discussed.