In an earlier paper2 of this series, we assigned the position of the double bond in anhydrokogagenin, a dehydration product of kogagenin, at C-5 and 6 tentatively. This has now been confirmed to be located at C-4 and 5 from the results of the epoxide formation, manganese dioxide oxidation and the glycol fission reaction. It has been found that the reaction of anhydrokogagenin with acetone containing
在本系列的较早论文2中,我们暂时将双氢键的位置指定在C-5和6上,这是Kogagenin的脱
水产物。根据
环氧化物形成,
二氧化锰氧化和二醇裂变反应的结果,现已证实其位于C-4和5。已经发现,脱
水角蛋白原与含有少量
对甲苯磺酸的
丙酮反应可得到烯丙基重排产物和普通的
丙酮化物。