The reaction between dimethyl acetylenedicarboxylate and various aryl aldehydes in the presence of triphenylphosphine leads to unsaturated γ-butyrolactone derivatives and highly substituted enones in fairly good yields at room temperature. © 2010 Elsevier Ltd. All rights reserved.
Bayat, M., Imanieh, H., & Hassanzadeh, F. (2010). Triphenylphosphine-catalysed one-pot synthesis of γ-butyrolactone derivatives and highly substituted enones via reaction of dimethyl acetylenedicarboxylate and aryl aldehydes. Tetrahedron Letters, 51(14), 1873–1875. https://doi.org/10.1016/j.tetlet.2010.02.004