activated methylene reagents to afford high functionalised indolizines. However, in the absence of this tandem, the Knoevenagel condensation intermediate leads to bis-1,4-DHPs as a new class of nitrogen compounds.
2-甲酰基-1,4-
DHP衍
生物2与活化的亚甲基试剂一起串联Knoevenagel缩合/
氨基腈环化,以提供高官能度的
吲哚嗪。但是,在没有这种串联的情况下,Knoevenagel缩合中间体会导致bis-1,4-
DHPs作为一类新的
含氮化合物。