作者:Alexander M. Aleksandrov、Susan A. Bourne、Mariusz Krawiec、Tonis J.Pehk、Alexander E. Petrenko、William H. Watson
DOI:10.1016/s0040-4020(01)85334-5
日期:1994.1
The reactions of 3,6-dibromo-2,7-dioxotetracyclo[6.3.0.04,11.05,9]undecane with organomagnesium halides are investigated as a method of preparing unusual tetrasubstituted pentacycloundecanes (D3-trishomocubanes). The tetrasubstituted pentacycloundecanes have been characterized and product geometries confirmed by NMR and X-ray crystal structure analysis. Rel-(1R,2R,3S,4S,5R,6R,7S,8S,9R,10R)-4-hydro
3,6-二溴-2,7- dioxotetracyclo [6.3.0.0的反应4,11 0.0 5,9 ]十一烷与有机镁卤化物研究作为制备四取代的不寻常的pentacycloundecanes的方法(d 3 -trishomocubanes)。已经对四取代的五环十一烷进行了表征,并通过NMR和X射线晶体结构分析确认了产品的几何形状。Rel-(1R,2R,3S,4S,5R,6R,7S,8S,9R,10R)-4-羟基-4-苯基-6-甲基-7-溴-(D 3)-三茂锰(11)展出具有大于17kcal / mol的旋转势垒的空间锁定的苯基,这应该使得可以制备具有邻或间取代的苯基的稳定的旋转异构体。