作者:Emmerich Sackers、Thomas Oßwald、Klaus Weber、Manfred Keller、Dieter Hunkler、Jürgen Wörth、Lothar Knothe、Horst Prinzbach
DOI:10.1002/chem.200501609
日期:2006.8.16
generally in polyunsaturated dodecahedranes (in the extreme C(20)H(4), "tetrahydro-C(20) fullerenes"). Only subsequently did skeletal fragmentations occur. From X-ray crystal-structure analyses, more information was obtained on the structural response of the dodecahedral skeleton to the strain induced by the voluminous substituents. As Appendix, the forcing radical bromination of 1,6-dibromododecahedrane
作为实现十二面体C(20)骨架的选择性低聚(多溴化)或最终全溴化的研究的一部分,研究了十二碳烯和1,16-十二碳二烯的离子溴化的程度和方向。沿着Br(+)加/去质子和烯丙基重排的顺序,最多可取代10个氢原子(C(20)H(x)Br(10)的痕迹)。在限定的条件下以高达50%的总收率得到四溴十二碳烯,其中三个和四个烯丙基溴取代基保护极度弯曲的C == C键,甚至对氧也无反应性,但与CH(2)N(2)迅速反应。新固定的低聚(poly)bromododecahedra(e)nes的电子碰撞电离(MS)后,取代基的顺序丢失通常以多不饱和十二面体为代表(在极端C(20)H(4)中,