高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (6): 914.

• 研究简报 • 上一篇    下一篇

天然产物(±)-Litsenolide C2的立体选择性合成

李焰, 陈祖兴, 黄精美, 黄锦霞, 徐章煌   

  1. 湖北大学化学系, 武汉, 430062
  • 收稿日期:1996-07-14 出版日期:1997-06-24 发布日期:1997-06-24
  • 通讯作者: 李焰, 男, 28岁, 硕士, 讲师.
  • 作者简介:李焰, 男, 28岁, 硕士, 讲师.
  • 基金资助:

    湖北省自然科学基金

Stereoselective Synthesis of (±)-Litsenolide C2

LI Yan, CHEN Zu-Xing, HUANG Jing-Mei, HUANG Jin-Xia, XU Zhang-Huang   

  1. Department of Chemistry, Hubei University, Wuhan, 430062
  • Received:1996-07-14 Online:1997-06-24 Published:1997-06-24

关键词: (±, )-LitsenolideC2, 混合高序铜, 立体选择性反应, AHF

Abstract: The lithihum (a-carbalkoxyvinyl) (2-thienyl) mixed higher order cyanocuprate, de-rived from ethyl propargylic ester with (n-C13H27) (2-thienyl)CuCNLi2, reacted with cis-1-bromo-l-propylene under Pd (PPh3)4 catalysis to give a diene ester ethyl 1- (Z-propylidene)-1-E-hexadecenate. Then the target product (±)-litsenolide C2 was stereoselectively synthe-sized by employing cis-dihydroxylation of the diene ester using a NMO-OsO4 system as the oxidant and stereospecific lactonation by acidic catalyst. The ratio of Eto Zcarbon-carbon double bond is >98: 2, and the ratio of trans- and cis-disubstituted lactones is >95: 5.

Key words: (±)-Litsenolide C2, Mixed higher order cyanocuprate, Stereoselective reaction, AHF

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