Lactone synthesis via the intramolecular alkylation of β-keto ester dianions
作者:Russell J. Sims、Samuel A. Tischler、Larry Weiler
DOI:10.1016/s0040-4039(00)81378-7
日期:1983.1
Long chain ω-halo β-keto esters undergo intramolecular alkylation via the dianions to yield macrocylic β-keto lactones.
长链ω-卤代β-酮酯通过二价阴离子进行分子内烷基化反应,生成大环β-酮内酯。
SIMS, R. J.;TISCHLER, S. A.;WEILER, L., TETRAHEDRON LETT., 0.083, 24, N 3, 253-256
作者:SIMS, R. J.、TISCHLER, S. A.、WEILER, L.
DOI:——
日期:——
Lermer, Leonard; Neeland, Edward G.; Ounsworth, James P., Canadian Journal of Chemistry, 1992, vol. 70, # 5, p. 1427 - 1445
作者:Lermer, Leonard、Neeland, Edward G.、Ounsworth, James P.、Sims, Russell J.、Tischler, Samuel A.、Weiler, Larry
DOI:——
日期:——
Ring Expansions of β-Keto Lactones with Zinc Carbenoids: Syntheses of (+)-Patulolide A and (±)-Patulolide B
作者:Matthew D. Ronsheim、Charles K. Zercher
DOI:10.1021/jo0264776
日期:2003.3.1
A one-pot ringexpansion/oxidation/elimination method has been developed in which beta-keto lactones are converted efficiently to alpha,beta-unsaturated-gamma-keto lactones. The reaction can be successfully applied to a variety of ring sizes. Alkene stereochemistry is dependent upon ring size and reaction conditions. The method was applied to the synthesis of (+)-patulolide A.