A Convenient Formylation of 2-(Dibromomethyl)-6,11-diphenyl-5,12-naphthacenequinone Using N,N-Dimethylformamide or N,N-Dimethylacetamide: Synthesis of 2-Formyl Rubrene - Wang, Yongfei; Zhao, Hongbin; Hu, Zhizhi; Kimura, Masaru; Zhiqiang, Zhang; Peng, Lei; Hiratsuka, Koji (Synthesis, 2011)