Preparation of Phosphine-Amido Hafnium and Zirconium Complexes for Olefin Polymerization
作者:Sung Hae Jun、Ji Hae Park、Chun Sun Lee、Seong Yeon Park、Min Jeong Go、Junseong Lee、Bun Yeoul Lee
DOI:10.1021/om400899g
日期:2013.12.23
remaining benzyl ligand occupying an apical position; in solution, however, three benzyl ligands became scrambled, as evidenced by a single set of benzyl signals in the corresponding 1H NMR spectra. The complexes showed comparable activities (17–48 × 106 g/mol-M·h) to the Ti-based constrained geometry catalyst (CGC) (36 × 106 g/mol-Ti·h) in ethylene/1-octene copolymerization, despite their inferior 1-octene
通过将相应的-NH基团转化为-N(COOLi)将苯胺(N -RC 6 H 5 NH)和1,2,3,4-四氢喹啉(2-RC 9 H 9 NH)衍生物邻位锂化通过用t BuLi进行治疗。在用Ph 2 P(OPh)处理后,将所得的邻位锂化的化合物转化为邻位-Ph 2 P-取代的衍生物。所得化合物与M(CH 2 Ph)4(M = Zr,Hf)进一步反应,得到一系列Hf和Zr配合物:(2-R-8-Ph 2 PC 9 H 9 N)Hf(CH 2 Ph )3(8,R = H; 9,R = Me; 10,R = i Pr; 11,R = n Bu),(NR-2-Ph 2 PC 6 H 4 N)Hf(CH 2 Ph)3(12,R = Me; 13,R = Et; 14,R = i Pr),(2-R-8-Ph 2 PC 9 H 9 N)Zr(CH 2 Ph)3(15,R = H; 16,R =我; 17,R =