Chemoenzymatic and Enantiomeric Switching Regimes Enabling the Synthesis of Homochiral Cyclohexa-2,5-dienones Incorporating All-Carbon Quaternary Centers
Autor: | Sebastian Ye, Martin G. Banwell |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | The Journal of Organic Chemistry. 86:15403-15412 |
ISSN: | 1520-6904 0022-3263 |
DOI: | 10.1021/acs.joc.1c01931 |
Popis: | The enantiomerically pure, bromobenzene-derived metabolite 5 has been transformed into enone 20 using a reaction sequence involving Suzuki-Miyaura cross-coupling and Eschenmoser-Claisen rearrangement processes. Treatment of compound 20 with lithium hydroxide results in an acetonide fragmentation reaction that delivers the 4,4-disubstituted cyclohexa-2,5-dienone 21, reductive de-oxygenation of which leads to congener 22. A closely related sequence of reactions can be used to convert the same homochiral starting material 5 into compound ent-22. |
Databáze: | OpenAIRE |
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