2-Aryl-1-vinylpyrroles in acetone, THF and benzene react with tetracyanoethene chemo-and regiospecifically across the vinyl group to give 3-(2-arylpyrrol-1-yl)-1, 1, 2, 2- cyclobutanetetracarbonitriles in 88–94% yield. The latter, upon recrystallization from EtOH,