Various tetrasubstituted pyrroles/pyrazoles have been prepared from nitro-substituted 1,3-enynes with aromatic amines/hydrazines via a copper-catalyzed cascade aza-Michael addition, cyclization and aromatization at room temperature. This protocol is also effective for the synthesis of tetrasubstituted pyrazoles in high yields.

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The synthesis and application of chiral dendrimer for the Fe‐catalyzed domino asymmetric sulfa‐Michael and aldol reactions of chalcones with 1,4‐dithiane‐2,5‐diol is described. Recyclable iron‐catalysis, selectivity and the simplified product isolation are the important features.

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A wide range of tetrasubstituted pyrroles/pyrazoles are efficiently synthesized via a copper‐catalyzed cascade aza‐Michael addition, cyclization, and aromatization using air as oxidant under mild and eco‐friendly reaction conditions.