Studies with enaminones: Synthesis and chemical reactivity of 2-(4-dimethylamino-2-oxobut-3-enyl)-isoindole-1,3-dione and of 4-(4-dimethylamino-2-oxobut-3-enyloxy)-2H-phthalazin-1-one
The title compounds were synthesized via condensing acetonylphthalimide and 4-acetonyloxyphthalazine-1-one with dimethylformamide dimethylacetal (DMFDMA). The reaction of these enaminones with electrophiles and nucleophiles is reported as a route to polyfunctional heteroaromatics.