Silica-supported poly-gamma-aminopropylsilane transition metal (Ni2+, Cu2+, Co2+) complexes have been prepared. These catalysts are highly active and stereoselective for Heck vinylation reaction of aryl iodide with olefines at 130-150 degreesC, and can be reused after washing without loss in activity. An induction period of more than 2 h was observed. (C) 2002 Elsevier Science B.V. All rights reserved.