Kumar, T., Ben Hassine, A., Martinez, A., Harakat, D., Chevreux, S., Massicot, F., Taillefer, M., Behr, J., Vasse, J., Jaroschik, F. Application of Elemental Lanthanides in the Selective C-F Activation of Trifluoromethylated Benzofulvenes Providing Access to Various Difluoroalkenes. J. Vis. Exp. (137), e57948, doi:10.3791/57948 (2018).