Knoevenagel Condensation of Aldehydes with Ethyl Cyanoacetate in Water Catalyzed by P4VP/Al₂O₃-SiO₂

Figure 6

Reaction of 4-nitro acetophenone and 4-nitro benzaldehyde in the presence of the P4VP/Al₂O₃-SiO₂(0.6) (in situ).