10.1002/ejoc.201901628
European Journal of Organic Chemistry
FULL PAPER
m/z for C16H15F3N4O2+Na+ [M+Na]+ calculated: 375.10393, found
375.10421.
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Preparative photooxidations – general method. A mixture of a
substrate (1 mmol), catalyst (0.05 or 0.10 mmol), additive (0.7 mmol;
CF3COOH or Cs2CO3) and activated MS 4 Å (125-150 mg) in CH3CN (2
mL) was bubbled with oxygen (2 min) and then was stirred at 45 °C under
irradiation by Luxeon LED diodes under O2 atmosphere (balloon) for 24
hours (if not otherwise mentioned). The solids were filtered off and the
solvent was evaporated. The crude product was purified by column
chromatography on silica gel.
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This project was supported by the Czech Science Foundation
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Keywords: Oxidation • Photocatalysis • Aldehydes • Ketones •
Chemoselectivity
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