The reactivity of functionalized ynamides and arylynamines with tetracyanoethylene at room temperature has been evaluated. In most cases, the corresponding 1,1,4,4-tetracyanobutadienes (TCBDs) have been obtained in good to excellent yields, following a sequence of [2+2]cycloaddition and [2+2]retroelectrocyclization. The influence of diverse functional groups on the yield of the reaction has been investigated
在室温下,已评估了官能化的乙酰胺和芳基乙酰胺与
四氰基乙烯的反应性。在大多数情况下,按照[2 + 2]环加成和[2 + 2]逆电环化的顺序,已经以良好或优异的收率获得了相应的1,1,4,4-四
氰基
丁二烯(
TCBD)。已经研究了各种官能团对反应产率的影响,特别是关于多种炔酰胺。这些
TCBD的特征在于各种光谱技术,电
化学和X射线衍射。