towards an asymmetric organocatalytic α-azidation of β-ketoesters
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2018
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Abstract
Detailed investigations concerning the organocatalytic (asymmetric) α-azidation of prochiral β-ketoesters were carried out. It was shown that the racemic version of such a reaction can either be carried out under oxidative conditions using TMSN3 as the azide-source with quaternary ammonium iodides as the catalysts, or by using hypervalent iodine-based electrophilic azide-transfer reagents with different organocatalysts. In addition, the latter strategy could also be carried out with modest enantioselectivities when using simple cinchona alkaloid catalysts, albeit with relatively low yields.
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tiffner2018moleculestowards
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| Authors | ;Maximilian Tiffner;Lotte Stockhammer;Johannes Schörgenhumer;Katharina Röser;Mario Waser |
| Journal | Journal of ethnopharmacology |
| Year | 2018 |
| DOI |
10.3390/molecules23051142
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