Recent progress in the application of group 1, 2 & 13 metal complexes as catalysts for the ring opening polymerization of cyclic esters

J Gao, D Zhu, W Zhang, GA Solan, Y Ma… - Inorganic Chemistry …, 2019 - pubs.rsc.org
High performance biodegradable polymers (eg, aliphatic polyesters) that can display
properties that rival polyolefins are seen as future high demand materials for a variety of …

Ring-opening polymerization of ε-caprolactone utilizing aluminum alkyl complexes bearing dianionic scorpionate ligands

EN Cooper, B Averkiev, VW Day, PE Sues - Organometallics, 2021 - ACS Publications
A series of eight scorpionate ligands (Ar) 2CHR (1–4) were synthesized and coordinated to
aluminum to produce Al (CH2CH3)((Ar) 2CHR)(5–8), where R= CH2OCH3 (1 or 5), CH2N …

Dialkylaluminum 2-substituted 6, 6-dimethylcyclopentylpyridin-7-oxylates toward structural-differentiation of the ring-opening polymerization of ε-caprolactone and L …

D Zhu, L Guo, W Zhang, X Hu, K Nomura… - Dalton …, 2019 - pubs.rsc.org
Herein, a series of dialkylaluminum 2-substituted 6, 6-dimethylcyclopentyl pyridin-7-oxylates
Al1–Al7 were synthesized and characterized by 1H-and 13C-NMR spectroscopy and …

CO2/Epoxide Coupling and the ROP of ε-Caprolactone: Mg and Al Complexes of γ-Phosphino-ketiminates as Dual-Purpose Catalysts

B Raghavendra, PVS Shashank, MK Pandey… - …, 2018 - ACS Publications
γ-Phosphino-ketimines Ph2PC [C (Me) O][C (Me) NAr](Ar= 2, 6-diisopropylphenyl, L 1 H; Ar=
2, 6-difluorophenyl, L 2 H) were synthesized by treating deprotonated ketimines with …

Grignard reagents as deprotonation agents for oxazoline-amido-phenolate ligands: structural and catalytic implications with the role of halogen ions

MT Chen, PZ Wu, CC Liao, KW Hung, PC Shen - Dalton Transactions, 2024 - pubs.rsc.org
In this study, various halogen-substituted Grignard reagents were assessed as
deprotonating agents for the oxazoline-amido-phenolate ligand, leading to the formation of …

Zinc bis-pyrrolide-imine complexes: Synthesis, structure and application in ring-opening polymerization of rac-lactide

A Caovilla, JS Penning, AC Pinheiro, F Hild… - Journal of …, 2018 - Elsevier
A series of bis-ligated zinc complexes with pyrrole-imine ligands were successfully
synthesized and characterized by 1 H and 13 C {1 H} NMR, and by X-ray crystallography for …

Quinolyl‐Amidinates Chelating Bimetallic Magnesium and Mononuclear Aluminum Complexes for ϵ‐Caprolactone Polymerization

Y Xi, NM Rajendran, W Zhang, Y Sun, M Lei… - …, 2016 - Wiley Online Library
A series of quinolyl‐amidinate compounds ((Ar–N= C (Ph)–N (H)–C9H5N–2–Me: Ar= 2, 6‐
Me2C6H3 (L1), 2, 6‐Et2C6H3 (L2), 2, 6‐iPr2C6H3 (L3), 2, 4, 6‐Me3C6H2 (L4), 2, 6‐Et2‐4 …

Lithium Quinolyl‐Amidinates Efficiently Promoting Ring‐Opening Polymerization of ε‐Caprolactone: Synthesis and 7Li NMR Spectroscopic Studies

NM Rajendran, Y Xi, W Zhang, Y Sun… - European Journal of …, 2017 - Wiley Online Library
Lithium complexes (Li1–Li5) of tridentate quinolyl‐amidinate scaffolds were successfully
synthesized in high yields and characterized by 1H NMR spectroscopy and multinuclear …

Progressive Metal Complex Catalysts for Ring-Opening Polymerization of Cyclic Esters

W Zhang, WH Sun - Synthesis and Applications in Chemistry and …, 2024 - World Scientific
Highly performant and biodegradable polyesters are currently in high-demand as polymeric
materials for sustainable applications. Interestingly, such polymers could be prepared …

非对称β-二亚氨基镁络合物催化丙交酯, 己内酯开环聚合/共聚研究

K Maryam, H Ma - 化学学报, 2018 - sioc-journal.cn
摘要合成了一系列非对称β-二亚氨基镁硅氨基络合物, 通过1H NMR, 13C NMR
和元素分析进行了表征, 典型络合物经X-射线单晶衍射确定了其晶体结构. 利用上述镁络合物在 …