化学学报 ›› 1988, Vol. 46 ›› Issue (6): 598-603.    下一篇

研究论文

甾体植物生长激素合成的研究V: 甾体醛与3-甲基丁烯-2-内酯醛醇反应的立体化学

周维善;田伟生;郑虎;赵旭阳   

  1. 中国科学院上海有机化学研究所;华西医科大学药学院
  • 发布日期:1988-06-15

Studies on steroidal plant-growth hormones V: Spectrochemistry of aldol reaction of steroidal aldehyde with 3-methylbut-2-enolide anion

ZHOU WEISHAN;TIAN WEISHENG;ZHENG HU;ZHAO XUYANG   

  • Published:1988-06-15

研究了甾体醛与3-甲基丁烯-2-内酯的醇醛缩合反应的温度与产物的立体化学的关系. 这一反应是合成油菜甾醇内酯植物生长激素边链的关键. 结果发现-78℃是这一醇醛缩合反应的最佳反应温度.

关键词: 内酯, 植物激素, 甾族化合物, 质子磁共振谱法, 立体化学, 醛, 构型, 植物生长调节物质, 油菜甾醇内酯, 甲基丁烯酸 P

The relation between stereochem. of products and temperature in the aldol reaction of the steroidal aldehyde I with the 3-methylbut-2-enolide anion has been studied. The most suitable reaction temperature (-78? has been found in this aldol reaction to give the major product, (22R,23R)-II, which is the key intermediate for the synthesis of the side chain of brassinolide and its analogs.

Key words: LACTONES, PHYTOHORMONE, STEROIDS, PROTON MAGNETIC RESONANCE SPECTROMETRY, STEREOCHEMISTRY, ALDEHYDES, CONFIGURATION, PLANT GROWTH REGULATING SUBSTANCE, BRASSINOLIDE, METHYLBUTENOIC ACID P

中图分类号: