One-pot synthesis of new dye derivatives of succinimide via three-component reaction of alkylidene Meldrum's acid, isocyanides and p-aminoazobenzene derivatives

One-pot reaction of alkylidene Meldrum's acid with alkyl isocyanides in the presence of 4-(2-phenyldiazenyl)benzenamine derivative leads to the corresponding azo 2,5-dioxo-3-pyrrolidine carboxamide in good yields. [Display omitted] •One-pot reaction of alkylidene Meldrum's acid with isocyanides in the presence of phenyldiazenyl benzenamine leads to the azo dioxopyrrolidine carboxamide.•The structure of products is in agreement with their IR, 1H NMR, 13H NMR spectroscopic data.•A plausible explanation is proposed in Scheme 2.•In Table 1 we introduced the structures of our products (4a–4g).•UV spectrum of some products has been reported.