The [Rh(Xantphos)]+ catalyzed hydroboration of diphenylacetylene using trimethylamine-borane
The rhodium(I) complex [Rh(κ3-P,O,P-Xantphos)(η2-PhC≡CPh)][BArF4] (ArF = 3,5-(CF3)2C6H4) is an effective catalyst for the cis-selective hydroboration of the alkyne diphenylacetylene using the amine-borane H3B·NMe3. Detailed mechanistic studies, that include initial rate measurements, full simulation...
| Hauptverfasser: | , , , |
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| Format: | Journal article |
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Elsevier
2019
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| _version_ | 1826285013594800128 |
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| author | Dietz, M Johnson, A Martínez-Martínez, A Weller, A |
| author_facet | Dietz, M Johnson, A Martínez-Martínez, A Weller, A |
| author_sort | Dietz, M |
| collection | OXFORD |
| description | The rhodium(I) complex [Rh(κ3-P,O,P-Xantphos)(η2-PhC≡CPh)][BArF4] (ArF = 3,5-(CF3)2C6H4) is an effective catalyst for the cis-selective hydroboration of the alkyne diphenylacetylene using the amine-borane H3B·NMe3. Detailed mechanistic studies, that include initial rate measurements, full simulation of temporal profiles for a variety of catalyst and substrate concentrations, and speciation experiments, suggest a mechanism that involves initial coordination of alkyne and a saturation kinetics regime for amine-borane binding. The solid-state molecular structure of a model complex that probes the proposed resting state is also reported, [Rh(κ3-P,O,P-Xantphos)(NCMe)(η2-PhC≡CPh)][BArF4]. |
| first_indexed | 2024-03-07T01:22:29Z |
| format | Journal article |
| id | oxford-uuid:90d2ece3-786b-41d2-8454-73c611876443 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:22:29Z |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:90d2ece3-786b-41d2-8454-73c6118764432022-03-26T23:14:27ZThe [Rh(Xantphos)]+ catalyzed hydroboration of diphenylacetylene using trimethylamine-boraneJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:90d2ece3-786b-41d2-8454-73c611876443Symplectic Elements at OxfordElsevier2019Dietz, MJohnson, AMartínez-Martínez, AWeller, AThe rhodium(I) complex [Rh(κ3-P,O,P-Xantphos)(η2-PhC≡CPh)][BArF4] (ArF = 3,5-(CF3)2C6H4) is an effective catalyst for the cis-selective hydroboration of the alkyne diphenylacetylene using the amine-borane H3B·NMe3. Detailed mechanistic studies, that include initial rate measurements, full simulation of temporal profiles for a variety of catalyst and substrate concentrations, and speciation experiments, suggest a mechanism that involves initial coordination of alkyne and a saturation kinetics regime for amine-borane binding. The solid-state molecular structure of a model complex that probes the proposed resting state is also reported, [Rh(κ3-P,O,P-Xantphos)(NCMe)(η2-PhC≡CPh)][BArF4]. |
| spellingShingle | Dietz, M Johnson, A Martínez-Martínez, A Weller, A The [Rh(Xantphos)]+ catalyzed hydroboration of diphenylacetylene using trimethylamine-borane |
| title | The [Rh(Xantphos)]+ catalyzed hydroboration of diphenylacetylene using trimethylamine-borane |
| title_full | The [Rh(Xantphos)]+ catalyzed hydroboration of diphenylacetylene using trimethylamine-borane |
| title_fullStr | The [Rh(Xantphos)]+ catalyzed hydroboration of diphenylacetylene using trimethylamine-borane |
| title_full_unstemmed | The [Rh(Xantphos)]+ catalyzed hydroboration of diphenylacetylene using trimethylamine-borane |
| title_short | The [Rh(Xantphos)]+ catalyzed hydroboration of diphenylacetylene using trimethylamine-borane |
| title_sort | rh xantphos catalyzed hydroboration of diphenylacetylene using trimethylamine borane |
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