Studies on the Structure and Catalytic Properties for Heck Reaction of Troxerutin Supported Palladium Catalyst

Resumo

Troxerutin supported palladium (TXT-Pd) catalyst was prepared readily by using one-step synthetic method. As-fabricated TXT-Pd catalyst was evaluated by means of fourier transform infrared spectrometer (FTIR), atomic absorption spectroscope instrument (AAS), and X-ray photoelectron spectrum (XPS). As-prepared catalyst possessed perfect catalytic properties to the Heck reaction of aryl halide with vinyl compounds in N₂ atmosphere and the yields were up to above 95%. Particularly, the TXT-Pd catalyst could catalyze the Heck reaction of bromobenzene with low reaction activity and acrylic acid even at a low temperature 80°C even with a little amount of the catalyst. The remarkable interest was reusing properties, with which the yield was up to 36.7% after 7 times of the reusable catalyst. Moreover, TXT-Pd catalyst also showed high catalytic activity to the Heck reaction of substituted aryl halides with acrylic acid or styrene.