(ARMAN) TAHERPOUR, AVAT, and SOHEILA BIGDELI KAMAL. “1,2,3-Trione Compounds Synthesis by Oxidation 1,3-Diketones”. Asian Journal of Chemistry, vol. 19, no. 5, Mar. 2010, pp. 4107-9, https://asianpubs.org/index.php/ajchem/article/view/13320.