Synthesis and tautomerism of 9-azabicyclo[4.2.l]nonan-1-ols (Norhomotropan-1-ols), N-alkyl and 7,8-dehydro- derivatives, and oxabicyclic analogues
作者:Craig R. Smith、David E. Justice、John R. Malpass
DOI:10.1016/s0040-4020(01)85713-6
日期:1994.1
together with the nor- systems and N-benzyl derivatives. The bicyclic amino-alcohols are shown to be in tautomeric equilibrium with the corresponding 4-aminocyclooctanones and -oct-2-enones; similar behaviour is also observed in oxabicyclic analogues. A rearrangement during attempted deprotection of the MEM ether derived from 9-benzyl-9-azabicyclo-[4.2.1]nonan-1-ol yielded N-benzyl-10-azabicyclo[3
已将9-甲基-9-氮杂双环[4.2.I]壬南-1-醇(同型泛醇)和-non-7-en-1-ol(同型-7-en-1-ol)用作原料。与正系统和N-苄基衍生物一起合成。显示双环氨基醇与相应的4-氨基环辛酮和-oct-2-烯酮处于互变异构平衡。在氧杂双环类似物中也观察到类似的行为。在尝试脱保护源自9-苄基-9-氮杂双环-[4.2.1]壬南-1-醇的MEM醚期间的重排产生了N-苄基-10-氮杂双环[3.3.2] dec-3-en-2-一。尝试将4-叠氮基取代基引入到受保护的环辛-3-烯酮中,得到了新颖的四环三唑啉。