Copper-catalysed N-acyliminium ion cyclisation to 3-azabicyclo[3.3.1]nonanes; synthesis of 2,4-disubstituted 1-aza-adamantanes
作者:Jan H. Udding、Nadine Papin、Henk Hiemstra、W.Nico Speckamp
DOI:10.1016/s0040-4020(01)85358-8
日期:1994.1
N-acyliminium ion cyclisation to N-protected 3-azabicyclo[3.3.1]non-6-ene is reported. This compound has been demonstrated to be a valuable intermediate in the synthesis of 2,4-disubstituted 1-aza-adamantanes, and led to a stereoselective synthesis of 1-aza-adamantan-4-ol. This selectivity was also observed in the synthesis of two α-amino acid derivatives with the adamantane skeleton. An X-ray crystal
报道了一种有效的Cu(bpy)Cl催化的N-酰基酰亚胺离子环化成N-保护的3-氮杂双环[3.3.1] non-6-ene的方法。已经证明该化合物是2,4-二取代的1-氮杂-金刚烷类化合物合成中的有价值的中间体,并且导致了1-氮杂-金刚烷-4-醇的立体选择性合成。在具有金刚烷骨架的两种α-氨基酸衍生物的合成中也观察到了这种选择性。给出了一种环化产物的X射线晶体结构。