Lamm,B.; Ankner,K., Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1978, vol. B32, # 1, p. 31 - 35
作者:Lamm,B.、Ankner,K.
DOI:——
日期:——
Straightforward Access to Terminally Disubstituted Electron‐Deficient Alkylidene Cyclopent‐2‐en‐4‐ones through Olefination with α‐Carbonyl and α‐Cyano Secondary Alkyl Sulfones
作者:Lena Trifonov、Ayelet Rothstein、Edward E. Korshin、Olga Viskind、Michal Afri、Gregory Leitus、Krzysztof Palczewski、Arie Gruzman
DOI:10.1002/ejoc.202101258
日期:2021.12.28
A straightforward synthesis of virtually unexplored terminally disubstituted electron-deficient alkylidene cyclopent-2-en-4-ones was elaborated using activated secondary sulfones as alkylidene anion-radical synthons. The presented olefination process is proposed to rely on a base-promoted tandem or sequential Michael addition of C-nucleophiles to 4-acyl- or 4-silyloxycyclopent-2-en-1-ones followed