Synthesis of novel β-dialkylamino-α,β-unsaturated trifluoromethylketones containing cyclobutene fragment and their reactions with organolithium and Grignard reagents
作者:Andrey B. Koldobskii、Nikolai P. Tsvetkov、Ekaterina V. Solodova、Pavel V. Verteletskii、Ivan A. Godovikov、Valery N. Kalinin
DOI:10.1016/j.tet.2010.03.026
日期:2010.5
from the corresponding β-halogeno-α,β-unsaturated trifluoromethylketones in almost quantitative yields. The ambident properties of these compounds in the reactions with organolithiums were discovered. The simple methods to control the selectivity of 1,2- or 1,4-addition of lithiated nucleophiles have been investigated.
首先从相应的β-卤代-α,β-不饱和三氟甲基酮以几乎定量的产率制备具有高反应性的三氟甲基烯氨基酮,并带有应变的环丁烯和降冰片二烯部分。发现这些化合物在与有机锂反应中的环境性质。已经研究了控制锂化亲核试剂的1,2-或1,4-加成选择性的简单方法。