benzoquinolizinium perchlorate 、
1,1-<(4'R,6'R)-dimethyl-1',3'-dioxan-2'-yl>-2,2-dimethylethylene 以
乙腈 为溶剂,
反应 20.0h,
生成 (-)-12,2'-spiro<(4'R,6'R)-dimethyl-1',3'-dioxane>-13,13-dimethyl-6,11-ethano-6,11-dihydrobenzo
quinolizinium perchlorate 、 (+)-12,2'-spiro<(4'R,6'R)-dimethyl-1',3'-dioxane>-13,13-dimethyl-6,11-ethano-6,11-dihydrobenzoquinolizinium perchlorate