The trifluoromethyl group is a structural subunit that is extensively relied upon in the drug discovery process in medicinal chemistry. However, its introduction during the course of a synthesis remains a challenge for the organic chemist.[1] Trifluoromethyl-substituted cyclopropenes are potentially highly useful subunits whose synthesis and use have been only sparsely described in the literature.[2] We recently documented an iron-catalyzed ...