2-Thioxo tetrahydropyrimidin-4- -ones, ionic

Preparation of 2-thioxo Tetrahydropyrimidin-4-(1H)-ones on Ionic Liquid Support... [Pg.117]

Bazureau et al. have reported a similar protocol to that described in Sect. 8.1 for the rapid synthesis of 2-thioxo tetrahydropyrimidin-4-(lH)-ones via cycli-zation of a primary amine with an isothiocyanate and a /1-dielectrophile (Fig. 35) [138]. First a j6-amino ester was linked to the ionic hquid support... [Pg.117]

Fig. 35 Preparation of 2-thioxo tetrahydropyrimidin-4-(2H)-ones on ionic hquid support. Reagents and conditions a R N = C = S, MeCN, rt, 18 h b Et2NH, MW, 120 °C, 15-45 min. R = Pr, i-PrCH2, PhCH2 R = Me, Bu...

H. Hakkou, J.J.E. Vanden, J. Hamelina, J.P Bazureau, Ionic liquid phase organic synthesis (loLiPOS) methodology applied to the three component preparation of 2-thioxo tetrahydropyrimidin-4-(lH)-ones rmder microwave dielectric heating. Tetrahedron 60 (2004) 3745-3753. [Pg.491]

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