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Metathesis of Alkanes Catalyzed by Silica-Supported Transition Metal Hydrides
Abstract
The silica-supported transition metal hydrides (≡Si-O-Si≡)(≡Si-O-) 2 Ta-H and (≡Si-O-) x M-H (M, chromium or tungsten) catalyze the metathesis reaction of linear or branched alkanes into the next higher and lower alkanes at moderate temperature (25° to 200°C). With (≡Si-O-Si≡)(≡Si-O-) 2 Ta-H, ethane was transformed at room temperature into an equimolar mixture of propane and methane. Higher and lower homologs were obtained from propane, butane, and pentane as well as from branched alkanes such as isobutane and isopentane. The mechanism of the step leading to carbon-carbon bond cleavage and formation likely involves a four-centered transition state between a tantalum-alkyl intermediate and a carbon-carbon -bond of a second molecule of alkane.
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Cited by
Jia, X., Qin, C., Friedberger, T., Guan, Z., & Huang, Z. (2016) · Science Advances · doi:10.1126/sciadv.1501591 · Cited by 534
The Power of Single‐Atom Catalysis
Liang, S., Hao, C., & Shi, Y. (2015) · ChemCatChem · doi:10.1002/cctc.201500363 · Cited by 365
Metadata
- Authors
- Vidal, V., Théolier, A., Thivolle-Cazat, J., & Basset, J.-M.
- Venue
- Science
- Published
- 1997-04-04
- Volume
- 276
- Issue
- 5309
- Pages
- 99-102
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2093299928
- Cited by
- 326
- References
- 0
- FWCI
- 7.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- Vidal, V., Théolier, A., Thivolle-Cazat, J., & Basset, J.-M. (1997). Metathesis of Alkanes Catalyzed by Silica-Supported Transition Metal Hydrides. Science. https://doi.org/10.1126/science.276.5309.99
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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.
