Efficient Heterogeneous Palladium-Montmorillonite Catalysts for Heck Coupling of Aryl Bromides and Chlorides

Some important information was missing from Table 6. The complete Table 6 follows:

Table 6 Catalyst Recycling Experiments with Coupling of Bromobenzene and Styrene Entry Catalyst Run 1 Run 2 Run 3 12 Pd-montm1a Pd-montm2a 7789 6577 5564 34 Pd-montm1b Pd-montm2b 7178 5155 1615 56 Pd-montm1b,c Pd-montm2b,c 5559 4661 2255 a Reaction conditions: alkene (1.5 equiv), Na2CO3 (1.2 equiv), ­catalyst (0.3 mol%), 150 °C, 3 h. b Reaction conditions: alkene (1.5 equiv), Et3N (1 equiv), Na2CO3 (0.5 equiv), catalyst (0.3 mol%), 160 °C, 3 h. c Catalysts reduced with hydrogen.16