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One of the possibilities to sophisticate compound syntheses iscatalysis using supported catalyst which combines theadvantages of both homogeneous and heterogeneous catalyst. Anapplication of Ce(III) inorganic salts, first of all CeCl3.7H2Odoped by sodium iodide, not until has been described from startof 21st Century. Twenty communications has been present duringthis time only. Catalysis by Ce(III) salts has been used for anactivation of carbonyl compounds and their derivatives insyntheses. Easily available, cheap and mechanically andthermally stable industrial cation-exchangers may be used ascarriers1. These in connection with complex of cerium inoxidation state of 3+ provide an effective, easily separableand recyclable catalytic system. This system has been studiedwith a view to its possible synthetic applications on modelthree-component domino syntheses, i.e. Kabachnik-Fields one-potsynthesis of alpha-aminophosphonates2, and Prins-Ritter one-potsynthesis of 4-amidotetrahydropyran derivatives3, respectively.It has been discovered that cation Ce(III) supported on a weakacid macroporous cation-exchanger has shown in the studiedreactions at least the same or better catalytic activity assalt CeCl3.7H2O, eventually doped by NaI.

One-Pot Syntheses Using Carbonyl Compounds Catalyzed by Ce(III) Supported on a Weakly Acidic Cation-Exchanger Resin