应用化学 ›› 1989, Vol. 0 ›› Issue (2): 60-62.

• 研究简报 • 上一篇    下一篇

3,5-环-6-甲氧基-孕甾-20(22)-烯立体选择性硼氢化反应的研究

刘兴平1, 梁晓天2   

  1. 1. 兰州大学有机化学研究所;
    2. 中国医学科学院药物研究所 北京
  • 收稿日期:1988-05-13 修回日期:1988-08-05 出版日期:1989-04-10 发布日期:1989-04-10

STUDY ON STEROSELECTIVE BOROHYDROGENATION OF 3,5-CYCLO-6-METHOXYL-PREGN-20(22)-ENE

Liu Xingping1, Liang Xiaotian2   

  1. 1. Institute of Organic Chemistry, Lanzhou University;
    2. Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing
  • Received:1988-05-13 Revised:1988-08-05 Published:1989-04-10 Online:1989-04-10

摘要: 3,5-环-6-甲氧基-孕甾-20S-22-醇1是合成2的前体,而后者是合成高效植物激素油菜甾醇内酯3及其类似物的关键中间体.

关键词: 立体选择性硼氢化反应, 二环已基硼烷, 硼氢化钠, 三氟化硼, 油菜甾醇内酯

Abstract: The stereoselective borohydrogenation of 3,5-cyclo-6-methoxyl-pregn-20(22) 5 by dicy-clohexylboronane to 20S-22-ol 1 was investigated.An appropriate ratio of sodium borohydrideto boron trifluoride used in this reaction was given, and the structure of 3 unexpected pro-ducts 6,7,8 obtained in this reaction was determined.

Key words: Stereoselective borohydrogenation, Dicyclohexylboronane, Sodium borohyd-ride, Boron trifluoride, Brassinolide