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Heck Reaction Catalyzed by Nanosized Palladium on Chitosan in Ionic Liquids
Abstract
Palladium nanocolloids supported on chitosan behave as very efficient heterogeneous catalysts in the Heck reaction of aryl bromides and activated aryl chlorides in tetrabutylammonium bromide as solvent and tetrabutylammonium acetate as base. Only 15 min is required to convert bromobenzene or p -nitrochlorobenzene into cinnamates. The efficiency of this catalyst is due to the stabilization of Pd colloids by the solvent and to a very fast PdH neutralization by the base. In contrast, no reaction occurs when utilizing imidazolium-based ionic liquids. The stability of the catalyst allows an extensive recycle in the coupling of iodoaromatics with butyl acrylate.
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Cited by
Applications of Ionic Liquids in Carbohydrate Chemistry: A Window of Opportunities
El Seoud, O. A., Koschella, A., Fidale, L. C., Dorn, S., & Heinze, T. (2007) · Biomacromolecules · doi:10.1021/bm070062i · Cited by 668
de Vries, J. G. (2006) · Dalton Trans. · doi:10.1039/b506276b · Cited by 624
The use of chitosan-based metal catalysts in organic transformations
Molnár, Á. (2019) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2019.02.018 · Cited by 161
Metadata
- Authors
- Calò, V., Nacci, A., Monopoli, A., Fornaro, A., Sabbatini, L., Cioffi, N., & Ditaranto, N.
- Venue
- Organometallics
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-09-18
- Volume
- 23
- Issue
- 22
- Pages
- 5154-5158
- ISSN
- 0276-7333 (ISSN-L)
- 1520-6041
- OpenAlex
- W2951675991
- Cited by
- 178
- References
- 0
- FWCI
- 7.20
- Type
- journal article
- Language
- en
- Open access
- closed
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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.
