Novel Catalyst Systems Based on Cationic Palladium Cyclopentadienyl Complexes for the Polymerization of Norbornene and Norbornene Derivatives
作者:D. S. Suslov、M. V. Pakhomova、M. V. Bykov、T. S. Orlov、Z. D. Abramov、A. V. Suchkova、P. A. Abramov
DOI:10.1134/s0023158424010087
日期:2024.2
BF3⋅OEt2 and [Pd(Cp)(L)2][BF4] (L = PPh3 or TFP) has been studied. A hypothesis for the formation of the catalyst via the intramolecular rearrangement of the η5-Cp ligand into the η1-Cp form upon interaction with a Lewis acid has been proposed. The structure of the [Pd(Cp)(TFP)2]BF4 complex (I) has been determined by X-ray diffraction (XRD) analysis. In the crystal structure of complex I, the coordination
摘要 基于 [Pd(Cp)(L) n ] m [BF 4 ] m配合物的体系的催化性能研究结果(其中 Cp = η 5 -C 5 H 5;n = 2,m = 1:L =三(邻甲氧基苯基)膦、三苯基膦、三(2-呋喃基)膦(TFP) n = 1,m = 1:L = 1,1'-双(二苯基膦)二茂铁,1,3-双(二苯基膦);丙烷、1,4-双(二苯基膦)丁烷、1,5-双(二苯基膦)戊烷;n = 1,m = 2或3:L = 1,6-双(二苯基膦)己烷)加成均和降冰片烯(NB)和NB衍生物的共聚已被描述。已经发现这些配合物可以用路易斯酸(BF 3 ⋅OEt 2或AlCl 3)活化。 [Pd(Cp)(PPh 3 ) 2 ][BF 4 ]/BF 3 ⋅OEt 2催化剂体系在NB聚合中的产率可达到188 800 mol NB \(\textmol}}_\文本Pd}}}}^ - 1}}\)。 BF