A. John, P. J. P. Yadav and S. J. Palaniappan, “Clean Synthesis of 1,8-Dioxo-Dodecahydroxanthene Derivatives Catalyzed by Polyaniline-P-Toluenesulfonate Salt in Aqueous Media,” Journal of Molecular Catalysis A: Chemical, Vol. 248, No. 1-2, 2006, pp. 121-125.
http://dx.doi.org/10.1016/j.molcata.2005.12.017

has been cited by the following article:

• TITLE: A Green Protocol for Efficient Synthesis of 1,8-Dioxo-Octahydroxanthenes Using Ionic Liquid

  AUTHORS: Sangita Makone, Shreyas Mahurkar

  KEYWORDS: 1, 8-Dioxo-Octahydroxanthenes; Ionic Liquid; Aldehydes; Dimedone

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.3 No.4A, November 29, 2013

  ABSTRACT: A clean, simple, efficient synthesis of 1,8-dioxo-octahydroxanthenes derivatives using ionic liquid 1-butyl, 3-me- thylimidazolium perchlorate ([bmim] ClO4) has been developed. The method provides several advantages such as simple work up, environmental friendliness and excellent yields in short reaction time. The ionic liquid [bmim] ClO4 used was recovered and reused for three times.