G. W. V. Cave and C. L. Raston, “Towards Benign SynThesis of Pyridines Involving Sequential Solvent Free Aldol and Michael Addition Reactions,” Chemical Communications, No. 22, 2000, pp. 2199-2200. doi:10.1039/b007431o

has been cited by the following article:

• TITLE: Montmorillonite K10 Clay Catalyzed One Pot Synthesis of 2,4,6-Tri Substituted Pyridine under Solvent Free Condition

  AUTHORS: Vellayan Kannan, Krishnapillai Sreekumar

  KEYWORDS: Clay Catalyst; Solvent Free Synthesis; Substituted Pyridine

  JOURNAL NAME: Modern Research in Catalysis, Vol.2 No.2, April 26, 2013

  ABSTRACT: Montmorillonite K10 catalyzed synthesis of 2,4,6 triaryl pyridine under solvent free condition is described. Montmorillonite effectively catalyzed the reaction in good to excellent yields. Using this solid catalyst, the reactions could be carried out in a short period of time with very good yield of triaryl pyridines, up to 97% under solvent free condition. This catalyst could be recycled very easily, which makes this methodology environmentally benign. The catalyst is active over three cycles.