Three-Component Reaction between Dimethyl Acetylenedicarboxylate and 2-(3,5-Dimethylpyrazole-1-Carbonyl)-3-Arylacrylonitrile in the Presence of Potassium Selenocyanate: A Synthesis of Highly Functionalized Selenophenes.

Reaction between 2-(3,5-dimethylpyrazole-1-carbonyl)-3-arylacrylonitrile and dimethyl acetylenedicarboxylate in the presence of potassium selenocyanate at room temperature provided a simple and efficient one-pot route for the synthesis of six highly functionalized selenophenes. [ABSTRACT FROM AUTHOR]