Synthesis and conformational analysis of 6-substituted-3-azabicyclo[3,3,1]nonanes
作者:Th. Reints Bok、W.N. Speckamp
DOI:10.1016/0040-4020(77)80193-2
日期:1977.1
6-hydroxy substituted 3-tosyl-3-aza-bicyclo[3,3,1]nonan-9-ones 2a and 2b are obtained directly via acrolein addition to N-Ts-piperidine pyrrolidine enamine. From 1H NMR spectral data of a series of derivatives a preferred twin-chair conformation for the adducts is indicated. This conclusion is supported both by studies on the elimination of the 6-OR group and on the reduction of the C9-oxo function
除了N-Ts-哌啶吡咯烷烯胺外,还可以通过丙烯醛直接获得6-羟基取代的3-甲苯基-3-氮杂-双氮杂[3,3,1]壬基-9-酮2a和2b。根据一系列衍生物的1 H NMR光谱数据,表明了加合物的优选双椅构象。关于消除6-OR基团和减少C 9 -oxo功能的研究均支持该结论。还注意到磺内酯10的异常形成。