Semipinacol and protoadamantane-adamantane rearrangements of 5,6-dibromoadamantan-2-one and -2-ol
作者:Xiaofang Wang、Yuxiang Dong、Edward L. Ezell、Jered C. Garrison、James K. Wood、James P. Hagen、Jonathan L. Vennerstrom
DOI:10.1016/j.tet.2017.04.006
日期:2017.5
A number of new polybrominated adamantanes were formed by rearrangements and bromination of 2,2,6,6-tetrabromoadamantane under Friedel-Crafts conditions. Protoadamantane-4,10-dione, 10-acetoxyprotoadamantan-4-one, 1,2,6-triacetoxyadamantane and 5,6-diacetoxyadamantan-2-one were formed by successive semipinacol and protoadamantane-adamantane rearrangements of 5,6-dibromoadamantan-2-one and 5,6-dibromoadamantan-2-ol
在Friedel-Crafts条件下,通过2,2,6,6-四溴金刚烷的重排和溴化反应,形成了许多新的多溴化金刚烷。原金刚烷-4,10-二酮,10-乙酰氧基原金刚烷-4-一,1,2,6-三乙酰氧基金刚烷和5,6-二乙酰氧基金刚烷-2-一是通过连续的5,6-二金刚烷- 2-一和5,6-二溴金刚烷-2-醇。这项工作可能为合成1,2,6-三取代的金刚烷打开新的途径。