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ω-氯代十一烷基三乙氧基硅烷依次用气相法二氧化硅固载、与甲硒基钠和氯化钯作用,再用水合肼还原,合成了气相法二氧化硅负载的聚-ω-(甲硒基)十一烷基硅氧烷钯(0)配合物.该钯(0)配合物对丙烯腈和丙烯酸与芳基碘的Heck芳基化反应具有很高的催化活性,为各种肉桂腈和肉桂酸的立体选择合成提供了方便实用的新途径.
ω-chloroundecyltriethoxysilane was sequentially loaded with fumed silica, reacted with sodium selenite and palladium chloride, and then reduced with hydrazine hydrate to synthesize a fumed silica-supported poly (0) complexes of palladium (0) with high catalytic activity for the Heck arylation of acrylonitrile with acrylic acid and aryl iodides , For a variety of cinnamonitrile and cinnamic acid stereoselective synthesis provides a convenient and practical new way.