Natural and Unnatural A-<i>seco</i>Terpenes from Pulegone: Synthesis of Galbanic Acid and Marneral Revisited
作者:Andrei Corbu、Maurizio Aquino、Manuel Perez、Zoila Gandara、Siméon Arseniyadis
DOI:10.1002/ejoc.200901021
日期:2009.12
various A-seco terpenoids that have allowed us to prepare natural galbanic acid [(–)-1] from (S)-(–)-pulegone [(–)-2]. Furthermore, we were able to increase both the yield and step efficiency of the synthesis of marneral [(+)-7] as well as to access higher homologues of ent-galbanic acid [(+)-4], ent-secodrial [(+)-5], and bis-epi-secochiliotrin (6) from (R)-(+)-pulegone [(+)-2]. (© Wiley-VCH Verlag GmbH
我们在此描述了一种改进的手性池策略,用于组装各种 A-seco 萜类化合物的核心结构 3(两个对映体),使我们能够从 (S)-(-)-胡薄荷[(-)-2]。此外,我们能够提高合成 [(+)-7] 的产量和步骤效率,以及获得 ent-galbanic 酸 [(+)-4]、ent-secodrial [( +)-5] 和来自 (R)-(+)-pulegone [(+)-2] 的双表皮环叶菊酯 (6)。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)