Ghosh, Tamal and Das, Amrita and Koenig, Burkhard (2017) Photocatalytic N-formylation of amines via a reductive quenching cycle in the presence of air. ORGANIC & BIOMOLECULAR CHEMISTRY, 15 (12). pp. 2536-2540. ISSN 1477-0520, 1477-0539
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Photochemical N-formylation of amines was performed under simple and mild reaction conditions. Amines are common electron donors in reductive photocatalysis, which then typically decompose after donating an electron to the photocatalyst. We have found that these oxidized amines can be utilized to give N-formamides in the presence of air without additional formylating agents. The reaction proceeds via the in situ formation of enamines. Oxygen (air) is necessary for the reaction to occur as it regenerates the photocatalyst forming superoxide radical anions as crucial intermediates involved in the reaction.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LIGHT PHOTOREDOX CATALYSIS; ELECTRON-TRANSFER; SINGLET OXYGEN; AEROBIC OXIDATION; ALIPHATIC-AMINES; CARBON-DIOXIDE; EFFICIENT; COMPLEXES; ALDEHYDES; HALIDES; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:00 |
| Last Modified: | 25 Feb 2019 12:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/200 |
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