Base-promoted isomerization of CF<sub>3</sub>-containing allylic alcohols to the corresponding saturated ketones under metal-free conditions
作者:Yoko Hamada、Tomoko Kawasaki-Takasuka、Takashi Yamazaki
DOI:10.3762/bjoc.13.149
日期:——
the 4,4,4-trifluorobut-2-en-1-ol system under metal-free conditions to afford the corresponding saturated ketones in high to excellent chemical yields using such a convenient and easy-to-handle base as DBU at the toluene refluxing temperature, and utilization of the corresponding optically active substrates unambiguously demonstrated that this transformation proceeded in a highly stereoselective fashion
遵循计算的期望,我们先前报道的有趣的4,4,4-三氟丁-2-yn-1-ols的1,3-质子移位已成功扩展到4,4,4-三氟丁-2-en-1在甲苯回流温度下使用方便且易于操作的碱(例如DBU),在无金属条件下使用-ol体系制得高至优异的化学收率的相应饱和酮,并明确利用了相应的光学活性底物,表明这种转变以高度立体选择性的方式进行。