The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.
Preparation and Characterization of Aluminum Alkoxides Coordinated on salen-Type Ligands: Highly Stereoselective Ring-Opening Polymerization of rac-Lactide
Abstract
A series of salen-type ligands (L 1 H 2 –L 6 H 2 ) with sterically bulky cumyl groups have been synthesized. Reaction of these ligands with AlMe 3 yields the mononuclear aluminum complexes [LAlMe] ( 1 – 3 ) or dinuclear species [L 2 Al 2 Me 4 ] ( 4 – 6 ), respectively. Further reaction of [LAlMe] ( 1 – 3 ) with benzyl alcohol produces [LAl(OBn)] ( 1a – 3a ), respectively. Solid-state structural studies reveal that complexes 1a and 2a are mononuclear; however, complex 6 is a dinuclear species. Aluminum alkoxides 1a – 3a are highly stereoselective in the ROP of rac -lactide, producing polylactide (PLA) with 94–97% enantiomeric selectivity ( P m ) at high conversion. Their high enantioselectivity leads to PLA with high T m (205 °C). The polymerization of l -lactide by these complexes also shows good living features with narrow PDI values ( M w / M n = 1.06–1.25) signaling less or no transesterification, which can be further verified by MALDI-TOF mass spectrometric analysis.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Controlled Ring-Opening Polymerization of Lactide and Glycolide
Dechy-Cabaret, O., Martin-Vaca, B., & Bourissou, D. (2004) · Chemical Reviews · doi:10.1021/cr040002s · Cited by 2,257
New emerging trends in synthetic biodegradable polymers—Polylactide: A critique
Gupta, A. P., & Kumar, V. (2007) · European Polymer Journal · doi:10.1016/j.eurpolymj.2007.06.045 · Cited by 941
Polymerization of lactide and related cyclic esters by discrete metal complexes
O'Keefe, B. J., Hillmyer, M. A., & Tolman, W. B. (2001) · Journal of the Chemical Society, Dalton Transactions · doi:10.1039/b104197p · Cited by 825
WU, J., YU, T., CHEN, C., & LIN, C. (2006) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2005.07.010 · Cited by 779
Self-citationFrom Lactic Acid to Poly(lactic acid) (PLA): Characterization and Analysis of PLA and Its Precursors
Inkinen, S., Hakkarainen, M., Albertsson, A.-C., & Södergård, A. (2011) · Biomacromolecules · doi:10.1021/bm101302t · Cited by 710
Biocompatible Initiators for Lactide Polymerization
Platel, R., Hodgson, L., & Williams, C. (2008) · Polymer Reviews · doi:10.1080/15583720701834166 · Cited by 706
Crystallization and Melting Behavior of Polylactides
Sarasua, J.-R., Prud'homme, R. E., Wisniewski, M., Le Borgne, A., & Spassky, N. (1998) · Macromolecules · doi:10.1021/ma971545p · Cited by 525
Complexes of Mg, Ca and Zn as homogeneous catalysts for lactide polymerization
Wheaton, C. A., Hayes, P. G., & Ireland, B. J. (2009) · Dalton Transactions · doi:10.1039/b819107g · Cited by 438
Radano, C. P., Baker, G. L., & Smith, M. R. (2000) · Journal of the American Chemical Society · doi:10.1021/ja9930519 · Cited by 403
Pappalardo, D., Annunziata, L., & Pellecchia, C. (2009) · Macromolecules · doi:10.1021/ma9010439 · Cited by 199
Cited by
Bakewell, C., Cao, T.-P.-A., Long, N., Le Goff, X. F., Auffrant, A., & Williams, C. K. (2012) · Journal of the American Chemical Society · doi:10.1021/ja310003v · Cited by 226
Tang, X., & Chen, E. Y.-X. (2018) · Nature Communications · doi:10.1038/s41467-018-04734-3 · Cited by 202
Metal‐Size Influence in Iso‐Selective Lactide Polymerization
Bakewell, C., White, A. J. P., Long, N. J., & Williams, C. K. (2014) · Angewandte Chemie International Edition · doi:10.1002/anie.201403643 · Cited by 178
Aluminum alkyl complexes: synthesis, structure, and application in ROP of cyclic esters
Wei, Y., Wang, S., & Zhou, S. (2016) · Dalton Transactions · doi:10.1039/c5dt04240b · Cited by 122
Wang, H., & Ma, H. (2013) · Chemical Communications · doi:10.1039/c3cc44980g · Cited by 120
Metadata
- Authors
- Chen, H.-L., Dutta, S., Huang, P.-Y., & Lin, C.-C.
- Venue
- Organometallics
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-02-27
- Volume
- 31
- Issue
- 5
- Pages
- 2016-2025
- ISSN
- 0276-7333 (ISSN-L)
- 1520-6041
- OpenAlex
- W2314638203
- Cited by
- 170
- References
- 12
- FWCI
- 10.58
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Preparation and Characterization of Aluminum Alkoxides Coordinated on salen-Type Ligands: Highly Stereoselective Ring-Opening Polymerization of rac-Lactide. https://app.cochat.ai/papers/10.1021/om201281w
- The paper
- Chen, H.-L., Dutta, S., Huang, P.-Y., & Lin, C.-C. (2012). Preparation and Characterization of Aluminum Alkoxides Coordinated on salen-Type Ligands: Highly Stereoselective Ring-Opening Polymerization of rac-Lactide. Organometallics. https://doi.org/10.1021/om201281w
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
