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