Efficient synthesis of trifluoromethylated cyclopentadienes/fulvenes/norbornenes from divinyl ketones
作者:Xiao Liu、Xianxiu Xu、Ling Pan、Qian Zhang、Qun Liu
DOI:10.1039/c3ob41400k
日期:——
The synthetic methods of trifluoromethylated cyclopentadienes/fulvenes/norbornenes have been developed using 3-CF3-1,4-dien-3-ols as the synthons, which can be easily prepared by the regiospecific 1,2-addition of the Ruppert–Prakash reagent (TMSCF3) to divinyl ketones. All the reactions are carried out under mild, metal-free conditions to afford the corresponding products in high to excellent yields.
已开发出合成三氟甲基化环戊二烯/富烯/诺尔博烯的方法,使用3-CF3-1,4-二烯-3-醇作为合成前体,这些前体可以通过Ruppert–Prakash试剂(TMSCF3)与二烯酮进行 regio-specific 1,2-加成轻松制备。所有反应均在温和的无金属条件下进行,产物得率高至优秀。