Catalytic performance of humic acid supported Pd/Ni bimetallic catalyst for Heck reaction

The humic acid supported Pd/Ni bimetallic catalyst has been readily prepared, which can catalyze the Heck reaction of bromobenzene with acrylic acid or styrene in the yield above 85%. The catalyst can be reused to a certain extent. In the Heck reaction of bromobenzene with acrylic acid, the yield was 42.9% after the catalyst was reused for 3 times. While the yield was 26.7% after the catalyst was reused for 7 times in the Heck reaction of bromobenzene with styrene. And the catalyst can also catalyze the Heck reaction of substituted phenyl halide with acrylic acid or styrene.