17β-Chloro-5α-androstan-3β-ol (VII) and 17β-chloro-5α-androstan-3-one (VI) were prepared. 3β-Hydroxy-5α-androstan-17-one hydrazone (II) was treated with N-chlorosuccinimide in pyridine to give 17-chloro-5α-androst-16-en-3β-ol (IVa), which on hydrogenation with 5% palladium charcoal afforded VII. The chromium trioxide oxidation of VII gave VI. Some observations concerning 17-bromo and 17-iodo compounds (IVb and III) were also written.
17β-
氯-5α-雄甾-3β-醇 (VII) 和 17β-
氯-5α-雄甾-3酮 (VI) 已被制备。3β-羟基-5α-雄甾-17-酮
肼亚胺 (II) 在
吡啶中与N-
氯丁烯酰亚胺反应,生成17-
氯-5α-雄甾-16-烯-3β-醇 (IVa),该化合物经过5%
钯炭的氢化反应得到VII。VII的
铬酸盐氧化反应生成VI。还对17-
溴化和17-
碘化化合物 (IVb 和 III) 进行了相关观察。