Whilst the reaction of Δ5, 6-steroids with the mixture Pb-IV-acetate -4(CH3)3SiN3 yields the 7α-azidosteroids at room temperature an opening of the rings A and B in the given steroids 1–6 takes place at the diminished temperature of −15° to the corresponding 5,6-seco-5-oxo-6-oic-nitrile compounds of the steroids. Likewise an analogous splitting results, if the 3-methyl-Δ2 cholestene (7) is treated
虽然Δ的反应5,6 -steroids与所述混合物的Pb-IV-
乙酸-4(CH 3)3的SiN 3个产率7α-azidosteroids在室温下的一个开口环A和B在给定的类
固醇1-6相对于类
固醇的相应5,6-seco-5-oxo-6-oic-腈化合物,在-15°降低的温度下发生。同样以类似的劈裂,如果3-甲基Δ 2胆甾烯(7)与
铅(OAC)处理4 4(CH 3)3的SiN 3。C原子3成为羰基官能团,并且从C原子2产生腈基。讨论了
叠氮基环氧化合物作为该新颖反应的中间体。后者与重氮环氧化合物的裂解非常相似;羰基和炔键。