N-Substituted Iminocaprolactanis as Versatile and Low Cost Ligands in Group 4 Metal Initiators for the Living Coordinative Chain Transfer Polymerization of α-Olefins

被引：16

作者：

Wei, Jia ^{[1
]}

Duman, Leila M. ^{[1
]}

Redman, Daniel W. ^{[1
]}

Yonke, Brendan L. ^{[1
]}

Zavalij, Peter Y. ^{[1
]}

Sita, Lawrence R. ^{[1
]}

机构：

[1] Univ Maryland, Dept Chem & Biochem, Lab Appl Catalyst Sci & Technol, College Pk, MD 20742 USA

来源：

ORGANOMETALLICS | 2017年 / 36卷 / 21期

基金：

美国国家科学基金会;

关键词：

ZIEGLER-NATTA POLYMERIZATION; BLOOD-PLATELET AGGREGATION; DEGENERATIVE TRANSFER; NARROW POLYDISPERSITY; BLOCK-COPOLYMERS; BUILDING-BLOCKS; LACTAMIMIDES; POLYOLEFINS; PROPENE; ME;

D O I：

10.1021/acs.organomet.7b00643

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new structurally diverse ligand for metal complexes, the (kappa(2)-N,N)-iminocaprolactam group, that can be obtained in large bulk quantities from inexpensive and readily available starting materials, is introduced. In the present report, the ability of this family of ligands to provide a viable substitute for the acyclic amidinate moiety of a class of cationic monocyclopentadienyl, amidinate (CPAM) group 4 metal initiators for the living coordination polymerization (LCP) and living coordinative chain transfer polymerization (LCCTP) of alpha-olefins is documented through the synthesis of (eta(5)-C5Me5)Hf[(R)(NN)-N-imcap](Me)(2) [R = benzyl (1), CH2(1-naphthyl) (2), and tert-butyl [C(CH3)(3)] (3)] as preinitiators for the (stereoselective) LCP and LCCTP of propene.

引用

页码：4202 / 4207

页数：6

共 4 条

[1] New strategies for achieving high stereoregularity in the living coordinative chain transfer polymerization of a-olefins using optically-pure, group 4 metal cyclopentadienyl, amidinate and guanidinate initiators
Blakley, Cathryn G.
Zavalij, Peter Y.
Sita, Lawrence R.
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2012, 244
[2] Electronic Effect Rate Enhancement in the Stereoselective Living Coordinative Polymerization of α-Olefins by α,α,α-Trifluoroacetamidinate-Modified Group 4 Metal CPAMCF3 Initiators
Thompson, Rick R.
Zavalij, Peter Y.
Sita, Lawrence R.
ORGANOMETALLICS, 2019, 38 (02) : 213 - 217
[3] Scalable production of end-group functionalized precision polyolefins via living coordinative chain transfer polymerization of ethene and a-olefins
Wei, Jia
Wickham, Rennisha
Sita, Lawrence R.
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2010, 240
[4] Isospecific polymerization of 1-hexene by C1-symmetric half-metallocene dimethyl complexes of group 4 metals with bidentate N-substituted iminomethylpyrrolyl ligands
Yasumoto, Takahiro
Yamamoto, Keishi
Tsurugi, Hayato
Mashima, Kazushi
DALTON TRANSACTIONS, 2013, 42 (25) : 9120 - 9128

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