Reactivity of β-(trifluoromethyl) acroleins towards primary alkyl (or aryl) amines: synthesis of (trifluoromethyl)-1-aza-1,3-dienes and secondary (trifluoromethyl) allylamines
作者:A. Selmi、M.M. El Gaied、G. Alvernhe
DOI:10.1016/0022-1139(94)03166-w
日期:1995.5
Vilsmeier's reaction on trifluoroketones leads to β-chloro-β-(trifluoromethyl)acroleins. The addition of primary alkyl- or aryl-amines to these acroleins leads in all cases to the formation of stable (trifluoromethyl)-1-aza-1,3-dienes which can be transformed quantitatively into secondary (trifluoromethyl) allylamines by reduction with sodium borohydride.
Vilsmeier对三
氟酮的反应导致生成β-
氯-β-(三
氟甲基)
丙烯醛。在所有情况下,向这些
丙烯醛中添加伯烷基胺或芳基胺会导致形成稳定的(三
氟甲基)-1-氮杂-1,3-二烯,可以通过用
钠还原将其定量转化为仲(三
氟甲基)
烯丙基胺。
硼氢化物。