A study into Stille cross-coupling reaction mediated by palladium catalysts deposited over siliceous supports bearing N-donor groups at the surface
2013
Abstrakt
Mesoporous molecular sieve SBA-15 and conventional silica gel were grafted with 3-[2-(diethylamino)ethylamino]propyl groups and used as supports for the preparation of deposited palladium catalysts, which were subsequently evaluated in Stille cross-coupling reaction of aryl bromides. The highest conversions were achieved with the metal-saturated catalyst resulting from the modified SBA-15.
Influence of various reaction parameters (solvent, additive, temperature, etc.) on the overall yield and selectivity was studied.