Copolymerization of Nonpolar Olefins and Allyl Acetate Using Nickel Catalysts Bearing a Methylene-Bridged Bisphosphine Monoxide Ligand
作者:Jin Jung、Hina Yasuda、Kyoko Nozaki
DOI:10.1021/acs.macromol.0c00183
日期:2020.4.14
monoxide ligand 1 with a methylene linker was applied to the nickel catalyzed olefin polymerization. Insitu generated phenylnickel chloride complex 2 and NaBArF4 mediated the homopolymerization of ethylene and propylene. In addition, complex 2 and NaBArF4 produced the copolymer of those nonpolar olefins with allyl acetate. Cationic η3-allylnickel complex 3 was successfully isolated and characterized
将具有亚甲基接头的双膦一氧化物配体1应用于镍催化的烯烃聚合。在原位生成的氯化phenylnickel复杂2和NaBAr ˚F 4介导的乙烯和丙烯的均聚反应。另外,配合物2和NaBAr F 4产生了那些非极性烯烃与乙酸烯丙酯的共聚物。阳离子η 3 -allylnickel复杂3被成功地分离和表征通过X射线晶体学分析。复杂3呈现出正方形的平面几何形状,咬合角度接近90度。尽管需要强路易斯酸性助催化剂(例如ZnEt 2,B(C 6 F 5)3或甲基铝氧烷)进行活化,但配合物3也可以使非极性烯烃与乙酸烯丙酯共聚。