Switchable Polymerization of Norbornene Derivatives by a Ferrocene-Palladium(II) Heteroscorpionate Complex

被引：40
作者：
Abubekerov, Mark [1 ]
Shepard, Scott M. [1 ]
Diaconescu, Paula L. [1 ]
机构：
[1] Univ Calif Los Angeles, Dept Chem & Biochem, 607 Charles E Young Dr East, Los Angeles, CA 90095 USA
来源：
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2016年 / 15-16期
基金：
美国国家科学基金会;
关键词：
Homogeneous catalysis; Polymerization; Palladium; Scorpionate ligands; Redox chemistry; VINYL-ADDITION POLYMERIZATION; RING-OPENING POLYMERIZATION; PALLADIUM-CARBON BOND; REDOX CONTROL; ISOCYANIDE INSERTION; CRYSTAL-STRUCTURE; METAL; CATALYSTS; LIGANDS; COPOLYMERIZATION;
D O I：
10.1002/ejic.201501295
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The ferrocene-chelating heteroscorpionate complex [(fc(PPh2){BH{(3,5-Me)(2)pz}(2)})PdMe] {(fc(P,B))PdMe, fc = 1,1-ferrocenediyl, pz = pyrazole} catalyzes the addition polymerization of norbornene and norbornene derivatives upon oxidation with [(Ac)Fc][BArF] {acetyl ferrocenium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate}. In situ reduction of [(fc(P,B))PdMe][BArF] in the presence of a substituted norbornene results in significant decrease of catalytic activity. Addition of one equivalent of oxidant restores the activity.
引用
收藏
页码：2634 / 2640
页数：7
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