11-Methanodibenzo[b,f][1,5]diazocine can easily be prepared from aniline and paraformaldehyde. Its reactions with either N-bromosuccinimide (NBS) or with iodine monochloride (ICl) in the presence of a suitable activator smoothly afford 2-bromo- and 2-iodo- derivatives, respectively. The combination of these halogenation methods provides access to the 8-bromo-2-iodo derivative, which is an interesting and otherwise
6H,12H-5,11-Methanodibenzo[b,f][1,5]diazocine 可以很容易地从
苯胺和多
聚甲醛制备。在合适的活化剂存在下,它与 N-
溴代琥珀
酰亚胺 (
NBS) 或与
一氯化碘 (ICl) 的反应分别顺利地得到 2-
溴-和 2-
碘-衍
生物。这些卤化方法的组合提供了获得 8-bromo-2-iodo 衍
生物的途径,这是一种有趣的中间体,用于合成 Troger 碱的不对称类似物。报道的卤化代表了 6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine 亲电取代的第一个例子。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)