- 选择性钌复分解催化剂：硝酸盐和亚硝酸盐X型配体的比较。
-Selective Ruthenium Metathesis Catalysts: Comparison of Nitrate and Nitrite X-type Ligands.
作者信息
Pribisko Melanie A, Ahmed Tonia S, Grubbs Robert H
机构信息
Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125.
出版信息
Polyhedron. 2014 Dec 14;84:144-149. doi: 10.1016/j.poly.2014.06.055.
Abstract
Two new Ru-based metathesis catalysts, and , have been synthesized for the purpose of comparing their catalytic properties to those of their -selective nitrate analogues, and . Although catalysts and exhibited slower initiation rates than and , they maintained high -selectivity in homodimerization and ring-opening metathesis polymerization reactions. Furthermore, the nitrite catalysts displayed higher -selectivity than for ring-opening metathesis polymerizations, and delivered higher yields of polymer.
摘要
为了将两种新型钌基复分解催化剂与它们的选择性硝酸盐类似物的催化性能进行比较，已合成了催化剂 和 。尽管催化剂 和 的引发速率比 和 慢，但它们在均聚和开环复分解聚合反应中保持了高选择性。此外，对于开环复分解聚合反应，亚硝酸盐催化剂表现出比 更高的选择性，并且 能提供更高的聚合物产率。
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