| Autor: |
Caitlin V, Kozack, Jennifer A, Sowin, Jonathan N, Jaworski, Andrei V, Iosub, Shannon S, Stahl |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
ChemSusChem |
| ISSN: |
1864-564X |
| Popis: |
Palladium-catalyzed allylic C–H oxidation has been widely studied, but most precedents use acetic acid as the coupling partner. Here, we report a method compatible with diverse carboxylic acid partners. Use of a Pd(0) pre-catalyst under aerobic reaction conditions leads to oxidation of Pd(0) by O(2) in the presence of the desired carboxylic acid to generate a Pd(II) dicarboxylate that promotes acyloxylation of the allylic C–H bond. Good-to-excellent yields are obtained with ~1:1 ratio of the alkene and carboxylic acid reagents. Optimized reaction conditions employ 4,5-diazafluoren-9-one (DAF) as a ligand, in combination with a quinone/Fe(phthalocyanine) cocatalyst system to support aerobic catalytic turnover. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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