Single‐crystal X‐ray analysis of the diketo form of asymmetric curcuminoids and coupled with NMR insights into its β‐Keto‐enol tautomerization at ambient temperature. - Cheng, Yang‐Je; Lin, Jyun‐Yi; Shih, Tzenge‐Lien; Hsieh, Chung‐Hung (Journal of the Chinese Chemical Society, 2024)