I_2-KIO_3-AcOH-H_2O体系氧化3,5-环-24S-乙基-胆甾-22烯-6-酮反应的研究  

ON THE OXIDATION OF 3,5-CYCLO-24S-ETHYL-CHOLEST-22-EN-6-ONE BY I_2-KIO_3-AcOH-H_2 O SYSTEM

作　　者：刘兴平[1] 

机构地区：[1]兰州大学有机化学研究所,兰州730000

出　　处：《应用化学》1990年第2期54-56,共3页Chinese Journal of Applied Chemistry

摘　　要：油莱甾醇内酯(Brassinolide)(1)是一种高效的植物生长激素,其生理活性与侧链中C_(22)、C_(23)的构型密切相关。当C_(22)、C_(23)为S、S构型时,其活性仅为1的十分之一。The oxidation of 2 by I_2-KIO_3-AcOH-H_2O system has been studied. Instead of 3, thecisglycol(C_(22)S, C_(23)S) was obtained in yield of 78.5%, as the major product obtained in theoxidation of 2 by osmium tetroxide. The possible mechanism,of the oxidation reaction wasdiscussed.

关 键 词：碘酸钾 氧化反应 油菜甾醇内酯 

分 类 号：O629.21[理学—有机化学]