作者:Jothi L. Nallasivam、Rodney A. Fernandes
DOI:10.1002/ejoc.201403607
日期:2015.3
The cascade aza-Cope/aza-Prins cyclization of homoallylamines to give substituted piperidines has been explored. The use of glyoxalic acid as the carbonyl component afforded bicyclic structures as a result of the internal carboxylate anion trapping the intermediate cation. The unimolecular bis-, tris-, and tetrakis(homoallylamine)s efficiently delivered the appended bis-, tris- and tetrakis(piperidine-4-ol)s
已经探索了高烯丙基胺的级联 aza-Cope/aza-Prins 环化以产生取代的哌啶。由于内部羧酸根阴离子捕获中间阳离子,因此使用乙醛酸作为羰基组分提供双环结构。单分子双-、三-和四(高烯丙胺)有效地提供了附加的双-、三-和四(哌啶-4-醇)(分别为三脚架和十字架形状)作为新实体。后一种化合物在 Suzuki-Miyaura 交叉偶联反应中用作合成肠壳孔蛋白的极好配体。