Total synthesis of (±)−jolkinolide A, B, and E utilizing a new mild esterification followsd by intramolecular Wittig-Horner reaction
作者:Shigeo Katsumura、Akihiko Kimura、Sachihiko Isoe
DOI:10.1016/0040-4020(89)80132-2
日期:1989.1
Jolkinolide A, B, and E were efficiently synthesized from 9-methoxy-carbonyl-4,4,10-trimethyl-Δ6-8-octalone 8 through Δ8(14)-podocalpen-13-one . A new synthetic method of γ-ylidenbutenolide consisting of mild esterification and the succeeding intramolecular Wittig-Horner reaction of α-diketone was developed.
Jolkinolide A,B,和E有效地从9-甲氧基羰基- 4,4,10三甲基Δ合成6 -8- octalone 8通过Δ 8(14) -podocalpen-13酮。提出了一种由轻度酯化和后续的α-二酮分子内Wittig-Horner反应组成的γ-γ-丁烯内酯的合成方法。