An Improved and Benign Synthesis of 9,10-Diarylacridine-1,8-dione and Indenoquinoline Derivatives from 3-Anilino-5,5-dimethylcyclohex-2-enones, Benzaldehydes, and 1,3-Dicarbonyl Compounds in an Ionic Liquid Medium - Wang, Xiang-Shan; Zhang, Mei-Mei; Jiang, Hong; Shi, Da-Qing; Tu, Shu-Jiang; Wei, Xian-Yong; Zong, Zhi-Min (Synthesis, 2006)