A complex of triphenylphosphine functionalized hydroxyethyl cellulose (HEC-OPPh3 )was syn-thesized and then coordinated with palladium acetate to form the hydroxyethyl cellulose supported tripheny-lphosphine-palladium(HEC-OPPh3-Pd)catalyst.The thermogravimetric analysis(TGA)indicated that the cata-lyst was stable below 180 ℃ in air.Further study showed that HEC-OPPh3-Pd could catalyze Suzuki coupling reaction efficiently in C2 H5 OH∶H2 O(1∶1).%以羟乙基纤维素（HEC）为原料，首先合成三苯基膦功能化的羟乙基纤维素（HEC-OPPh3），进而与醋酸钯络合，合成了一种新型的羟乙基纤维素负载三苯基膦-钯催化剂（HEC-OPPh3-Pd）。热重分析（TGA）表明该催化剂在180℃以下稳定存在于空气中。进一步研究发现，羟乙基纤维素负载三苯基膦-钯催化剂于乙醇和水等比例混合溶剂中能有效催化 Suzuki偶联反应。
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