科研之友
微信
新浪微博
Facebook
分享链接
摘要
Synthesis of selectively substituted fluorenes and fluorenols was achieved by using catalytic [2+2+2]cyclotrimerization. Various starting diynes were reacted with different alkynes in the presence of a catalytic amount of Wilkinson's catalyst (RhCl(PPh3)(3)) providing the compounds possessing the fluorene scaffold in good isolated yields. A set of four regioselectively substituted fluorenols was converted to the corresponding 9,9-spirobifluorenes and their spectral characteristics were measured.
- 出版日期2015-9-21
