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。