List, B., Doehring, A., Hechavarria Fonseca, M. T., Job, A., & Rios Torres, R. (2006). A Practical, efficient, and atom economic alternative to the Wittig and Horner–Wadsworth–Emmons reactions for the synthesis of (E)-α,β-unsaturated esters from aldehydes. Tetrahedron, 62(2-3), 476-482. doi:10.1016/j.tet.2005.09.081.