H. Yanai, A. Saito and T. Taguchi, “Intramolecular Diels-Alder Reaction of 1,7,9-Decatrienoates Catalyzed by Indium(III) Trifluoromethanesulfonate in Aqueous Media,” Tetrahedron, Vol. 61, No. 30, 2005, pp. 7087-7093. doi:10.1016/j.tet.2005.05.062

has been cited by the following article:

• TITLE: Synthesis of Novel Bis-enaminones by KHSO4-assisted Facile Michael Addition-elimination Reaction of 3-(dimethylamino)-1-phenylprop-2-en-1-ones with Diamines in Water

  AUTHORS: Asem Satyapati Devi, Philippe Helissey, Jai Narain Vishwakarma

  KEYWORDS: Enaminone, Bis-enaminone, Formylated Acetophenone, Michael Addition-Elimination, Formylation, Dimethylformamide-dimethylacetal

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.1 No.2, April 13, 2011

  ABSTRACT: 3-(Dimethylamino)-1-phenylprop-2-en-1-ones (formylated acetophenones) 1 reacted with aliphatic diamines in water assisted by KHSO4 to give bis-enaminones 2a-h in good yields. Compound 1 also reacted with o-phenylenediamine under similar conditions to produce bis-enaminones 3 instead of benzodiazepines 4 in excellent yields.