SYNTHESIS OF STEROIDAL PLANT-GROWTH REGULATORS .23. STEREOSELECTIVE SYNTHESIS OF CRINOSTEROL AND BRASSICASTEROL FROM HYODEOXYCHOLIC ACID

被引：0

作者：

ZHOU, WS ^{[1
]}

SUN, LQ ^{[1
]}

PAN, XF ^{[1
]}

机构：

[1] LANZHOU UNIV,DEPT CHEM,LANZHOU 730000,PEOPLES R CHINA

来源：

ACTA CHIMICA SINICA | 1992年 / 50卷 / 12期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Synthesis of crinosterol (1) and brassicasterol (2), Which are preferential starting materials for syntheses of brassinolide (3) and 24-epi-brassinolide (4), have been achieved, starting from the 20-carbonaldehyde (6) obtained from the hyodeoxycholic acid (5). The overall yield of 1 and 2 is 48-57% and 52-54%, both in six steps, respectively. The key step of these syntheses is the Claisen rearrangement.

引用

页码：1192 / 1199

页数：8

共 14 条

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