抄録
1-Phenyl-, and 1-nitrophenylindoles were subjected to the Vilsmeier-Haack reaction to give the corresponding 1-arylindole-3-carboxaldehyde in good yield. These aldehydes were condensed with nitromethane and hydroxylamine. The oximes were dehydrated to afford the 1-arylindole-3-carbonitriles (3b-3d). The Knoevenagal condensation of 1d with ethyl cyanoacetate gave 5d as a 1 : 1 mixture of cis and trans isomers.
