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1H NMR, present as an approximately 1:1 mixture with the cyclized product
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1H NMR, present as an approximately 1:1 mixture with the cyclized product.
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74949108501
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See the Supporting Information for the preparation of 4
-
See the Supporting Information for the preparation of 4.
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45
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74949118733
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The relative configuration of the product was determined by X-ray crystallographic analysis. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre (CCDC 748503) via
-
The relative configuration of the product was determined by X-ray crystallographic analysis. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre (CCDC 748503) via www. ccdc.cam.ac.uk/data-request/cif.
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46
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69549111416
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Oxidation via the action of adventitious oxygen or trialkylammonium radical cations cannot be ruled out at this time
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MacMillan and coworkers have previously postulated the oxdiation of α-aminylradicals by the Ru(II) excited state (see refs 10a and .10f). For a discussion on electron recycling in catalysis, see: Buckel, W. Angew. Chem., Int. Ed. 2009, 48, 6779. Oxidation via the action of adventitious oxygen or trialkylammonium radical cations cannot be ruled out at this time.
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