Article citationsMore>>

J. J. V. Eynde, N. Audiort, V. Canonne, S. Michel, Y. V. Haverbeke and C. O. Kappe, “Synthesis and Aromatization of Dihydropyrimidines Structurally Related to Calcium Channel Modulators of the Nifedipine-Type,” Heterocycles, Vol. 45, No. 10, 1997, pp. 1967-1978.
http://dx.doi.org/10.3987/COM-97-7931

has been cited by the following article:

• TITLE: Phase Transfer Catalysis Improved Synthesis of 3,4-Dihydropyrimidinones

  AUTHORS: Hela Slimi, Khemaïs Saïd, Younes Moussaoui, Ridha Ben Salem

  KEYWORDS: Multicomponent Reaction; Biginelli Reaction; 3, 4-Dihydropyrimidinones; Phase-Transfer Catalysis; Quaternary Ammonium Salts

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.3 No.3A, November 28, 2013

  ABSTRACT: Various 3,4-dihydropyrimidinones can be prepared via Biginelli reaction in aqueous media by using quaternary ammonium salts of different alkyl groups (C4 and C8) and anions (Cl-and Br-) as catalysts. The use of quaternary ammonium salts along with longer alkyl chains increases the yield of the Biginelli reaction; however, bromide ammonium salts are less active than the chloride ones.