A new method for the synthesis of trifluoromethyl-allenes from easily accessible α-trifluoromethyl-propargyl benzyl ether derivatives following a gold-catalyzed intramolecular hydride transfer has been developed. Various di- and trisubstituted trifluoromethyl-allenes were obtained in good to excellent yields.
Boreux, A., Lonca, G. H., Riant, O., & Gagosz, F. (2016). Synthesis of Trifluoromethyl-allenes by gold-catalyzed rearrangement of propargyl benzyl ethers. Organic Letters, 18, 5162-5165. https://doi.org/10.1021/acs.orglett.6b02636 (Original work published 2016)