Hossain, Asik and Pagire, Santosh K. and Reiser, Oliver (2017) Visible-Light-Mediated Synthesis of Pyrazines from Vinyl Azides Utilizing a Photocascade Process. SYNLETT, 28 (14). pp. 1707-1714. ISSN 0936-5214, 1437-2096
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A convenient method for the synthesis of substituted pyrazines from vinyl azides has been developed. This method is enabled by a dual-energy and electron-transfer strategy by visible-light photocatalysis. Initially, vinyl azides are activated by a triplet sensitization process from an excited ruthenium photocatalyst in the presence of water to form dihydropyrazines, followed by a single-electron-transfer (SET) process under oxygen (air) atmosphere that leads to the tetrasubstituted pyrazines in good to excellent yields.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ALPHA-DIAZOCARBONYL COMPOUNDS; ORGANIC PHOTOREDOX CATALYSIS; 1,3-DICARBONYL COMPOUNDS; FLOW MICROREACTORS; PYRROLE SYNTHESIS; 2H-AZIRINES; COPPER; QUINOXALINES; RADICALS; ALKENES; visible-light photocatalysis; pyrazines; synthetic methods; vinyl azides; photocascade process |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Oliver Reiser |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:15 |
| Last Modified: | 26 Feb 2019 08:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/1329 |
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