三取代基膦配体促进RhCl3催化硅氢加成反应研究

摘要

The effects of a series of triarylphosphine with different substituents on RhCl3 in catalyzing hydrosilylation reaction were investigated . The results indicated that the tris (2‐methoxyphenyl) phosphine ligand promotes both the hydrosilylation reaction and the catalytic activity of RhCl 3 .When the ratio of tris (2‐methoxyphenyl) phosphine ligand and RhCl3 catalyst was 5∶1 in 100 ℃ ,the conversion rate was the highest ,and the catalytic effect was the best .%考察了一系列含不同取代基团的三芳基膦配体对RhCl3催化硅氢加成的影响，结果表明：当三（2‐甲氧基苯基）膦作为配体时，RhCl3能有效地催化硅氢加成，催化剂的催化活性最好；当温度达到100℃、反应5 h、三（2‐甲氧基苯基）膦与RhCl3催化剂的比例为5∶1时，转化率最高，催化效果最佳。