Shioorkar, Mahesh G., and Milind B. Ubale. “Silica Catalyst Promoted One-Pot Synthesis of 4-[(Dialkylamino)methyl]-1,7-Diphenylhepta-1,6-Diene-3,5-Dione”. Asian Journal of Chemistry, vol. 29, no. 6, Apr. 2017, pp. 1249-52, doi:10.14233/ajchem.2017.20447.