作者:Kata Mlinarić-Majerski、Goran Kragol
DOI:10.1002/(sici)1099-0690(199906)1999:6<1401::aid-ejoc1401>3.0.co;2-s
日期:1999.6
have been studied. In acidic media, 2,8-didehydronoradamantan-9-ol (3) rearranges to the corresponding 2-substituted brend-4-ene derivatives. Exclusive formation of exo-2-substituted brend-4-enes supports the formation of a bridged bicyclobutonium ion. However, treatment of ketone 2 with PCl5 proceeds through a concerted mechanism by cleavage of the C-1–C-2 bond in 2 to give exo-2,5-dichlorotricyclo[4
通过brend-4-en-2-one(1)的oxa-二-π-甲烷光重排很容易制备2,8-Didehydronoradamantan-9-one(2)。其他新的9-取代的2,8-二氢加氢金刚烷酰胺也已从2 [即2,8-二氢加氢金刚烷-9-醇(3)和甲苯磺酰4 4 ]制备,并且已经研究了开环反应。在酸性介质中,2,8-二氢加氢金刚烷-9-ol(3)重排为相应的2-取代的brend-4-ene衍生物。exo -2-取代的brend-4-烯的排他性形成支持桥联的双环丁鎓离子的形成。但是,用PCl 5处理酮2通过在2中裂解C-1–C-2键,通过协同机理进行反应,得到exo -2,5-二氯三环[4.2.1.0 3,8 ] non-4-ene(6)。三环[4.2.1.0 3,8 ]壬烷骨架也可通过光化学诱导的电子转移还原2和用Li / NH 3还原2以及通过甲苯磺酰4 4分别用NaBH 3 CN和BH 3