Recyclable Trifluoromethylation Reagents from Fluoroform
作者:Jacob B. Geri、Nathaniel K. Szymczak
DOI:10.1021/jacs.7b05408
日期:2017.7.26
We present a strategy to rationally prepare CF3- transfer reagents at ambient temperature from HCF3. We demonstrate that a highly reactive CF3- adduct can be synthesized from alkalimetalhydride, HCF3, and borazine Lewis acids in quantitative yield at room temperature. These nucleophilic reagents transfer CF3- to substrates without additional chemical activation, and after CF3 transfer, the free borazine
我们提出了一种在环境温度下从 H 合理制备 CF3 转移试剂的策略。我们证明了可以在室温下以定量产率从碱金属氢化物、H 和硼嗪路易斯酸合成高反应性 -加合物。这些亲核试剂无需额外的化学活化即可将 - 转移到底物上,在 转移后,游离的环硼氮烷被定量再生。这些特征能够合成流行的亲核、自由基和亲电三氟甲基化试剂,并完全回收硼嗪路易斯酸。
Organoboron compounds
作者:R.Harry Cragg、Manije Nazery
DOI:10.1016/0022-328x(86)82034-4
日期:1986.4
Polycyclic borazines are readily obtained from the interaction of a tris(dialkylamino)borane with a diamine or amine alcohol. In some cases the 2-dialkylamino-1,3,2-boracycloalkanes have been isolated.