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https://hdl.handle.net/2440/137058
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Type: | Journal article |
Title: | Aminium cation-radical catalysed selective hydration of (E)-aryl enynes |
Author: | Giel, M.C. Barrow, A.S. Smedley, C.J. Lewis, W. Moses, J.E. |
Citation: | Chemical Communications, 2021; 57(57):6991-6994 |
Publisher: | Royal Society of Chemistry (RSC) |
Issue Date: | 2021 |
ISSN: | 1359-7345 1364-548X |
Statement of Responsibility: | Marie-Claire Giel, Andrew S. Barrow, Christopher J. Smedley, William Lewis and John E. Moses |
Abstract: | The hydration of carbon–carbon triple bonds is an important and atom economic synthetic transformation. Herein, we report a mild and selective method for the catalytic Markovnikov hydration of (E)-aryl enynes to the corresponding enones, mediated through the benchstable aminium salt, tris(4-bromophenyl)ammoniumyl hexachloroantimonate (TBPA). The chemoselective and diastereoselective method proceeds under neutral metal-free conditions, delivering excellent product yields from terminal and internal alkyne units. The synthesis of biologically important (E)-3-styrylisocoumarins, including a formal synthesis of the natural product achlisocoumarin III, demonstrates the utility of this novel transformation. |
Rights: | © The Royal Society of Chemistry 2021 |
DOI: | 10.1039/d1cc02257a |
Grant ID: | http://purl.org/au-research/grants/arc/FT170100156 |
Published version: | http://dx.doi.org/10.1039/d1cc02257a |
Appears in Collections: | Chemistry publications |
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