A comparative study of Heck vinylation of various aryl iodides with methyl acrylate, by either Ru(III) and Pt(IV) complexes immobilized on quinoline-carboimine functionalized FSM-16 (Ru-2QC, Pt-2QC) or Ru and Pt chlorides loaded impregnated on the same support (Ru-FSM, Pt-FSM) has been performed. The catalysts exhibit high activity and selectivity towards Heck vinylation of aryl iodides with methyl acrylate, even at low concentrations of metals (0.05-0.1 mol% with respect to aryl halide). Conversion of various aryl iodides of 100% within 3-8 h reaction and selectivity for trans-stereoisomer higher than 99% has been achieved over ruthenium containing catalysts (Ru-FSM, Ru-2QC). Platinum catalysts (Pt-FSM, Pt-2QC) were less active, resulting in the conversion of aryl iodides of 50-70%. The method of the modification influenced on heterogeneous character of reaction. The leaching was negligible in the case of Ru(III) and Pt(IV) complexes immobilized on quinoline-carboimine functionalized FSM-16, while metal species of transition metals supported on FSM-16 were leached to the solution. (c) 2005 Elsevier B.V. All rights reserved.