Cited by 58biodegradable polymer synthesis and propertiesOrganometallic Complex Synthesis and CatalysisCarbon dioxide utilization in catalysis

Dinuclear aluminum complexes supported by amino- or imino-phenolate ligands: synthesis, structures, and ring-opening polymerization catalysis of rac-lactide

Yu, Xiao-Feng, Wang, Zhong-Xia·2013·Dalton Transactions

Abstract

Two series of ligand precursors [2-OH-3-(CH(2)NR(2))-5-MeC(6)H(2)](2)CH(2) (1: NR(2) = NMe(2); 2: NR(2) = N(CH(2))(4); 3: NR(2) = N(CH(2))(5); 4: NR(2) = N(Me)Ph) and [2-OH-3-(CH=NR)-5-MeC(6)H(2)](2)CH(2) (10: R = 2,6-Pr(2)(i)C(6)H(3); 11: R = p-MeC(6)H(4); 12: R = p-ClC(6)H(4); 13: R = p-MeOC(6)H(4); 14: R = Bu(t)) were prepared. These compounds reacted with AlMe(3) to afford corresponding dinuclear aluminum complexes [AlMe(2){2-O-3-(CH(2)NR(2))-5-MeC(6)H(2)}](2)CH(2) (6: NR(2) = NMe(2); 7: NR(2) = N(CH(2))(4); 8: NR(2) = N(CH(2))(5); 9: NR(2) = N(Me)Ph) and [AlMe(2){2-O-3-(CH=NR)-5-MeC(6)H(2)}](2)CH(2) (15: R = 2,6-Pr(2)(i)C(6)H(3); 16: R = p-MeC(6)H(4); 17: R = p-ClC(6)H(4); 18: R = p-MeOC(6)H(4); 19: R = Bu(t)). All the compounds were characterized by (1)H and (13)C NMR spectroscopy and elemental analyses. Complexes 6 and 16 were additionally characterized by single crystal X-ray diffraction techniques. Catalysis of the aluminum complexes towards the ring-opening polymerization of rac-lactide was evaluated in the presence of benzyl alcohol. All the polymerization reactions proceed in a controlled manner.

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Crossref · 10.1039/c2dt32520a

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Authors
Yu, X.-F., & Wang, Z.-X.
Affiliations
University of Science and Technology of China (CN)
Corresponding author
Wang, Zhong-Xia
Venue
Dalton Transactions
Published
2013
Volume
42
Issue
11
Pages
3860
ISSN
  • 1477-9226 (ISSN-L)
  • 1477-9234
OpenAlex
W2124773645
Cited by
58
References
38
Citations by year
2026: 2 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 1 · 2020: 5 · 2019: 2 · 2018: 3 · 2017: 7 · 2016: 7 · 2015: 10 · 2014: 9 · 2013: 4
FWCI
2.98
Type
journal article
Language
en
Open access
closed
Locations
  • Dalton Transactions (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Chemistry › Organic Chemistry › Organometallic Complex Synthesis and Catalysis
  • Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Carbon dioxide utilization in catalysis
Keywords
dinuclear aluminum complexes, ring-opening polymerization, rac-lactide, polylactic acid, benzyl alcohol, controlled polymerization, ligand precursors, aluminum chloride, crystal structure, polymerization mechanism, stereoselectivity, molecular weight distribution, molecular weight control, polycaprolactone
MeSH terms
Catalysis, Dioxanes, Kinetics, Magnetic Resonance Spectroscopy, Phenols, Aluminum Compounds, Coordination Complexes, Polymerization

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