Mild Cu-Catalyzed Oxidation of Benzylic Boronic Esters to Ketones
Autor: | Benjamin M. Partridge, James D Grayson |
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Rok vydání: | 2019 |
Předmět: | |
Zdroj: | ACS Catalysis. 9:4296-4301 |
ISSN: | 2155-5435 |
DOI: | 10.1021/acscatal.9b00992 |
Popis: | The oxidation of benzylic boronic esters directly to the ketone is reported. This mild Cu-catalyzed method uses an ambient atmosphere of air as the terminal oxidant and is notably chemoselective. Oxidation of the C-B bond occurs selectively, even in the presence of unprotected alcohols. Initial investigation suggests the reaction proceeds through an alkylboron to Cu transmetallation, peroxide formation, and rearrangement to give the carbonyl. |
Databáze: | OpenAIRE |
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