Pagire, Santosh K. and Kreitmeier, Peter and Reiser, Oliver (2017) Visible-Light-Promoted Generation of alpha-Ketoradicals from Vinyl-bromides and Molecular Oxygen: Synthesis of Indenones and Dihydroindeno[1,2-c]chromenes. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 56 (36). pp. 10928-10932. ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
Ortho-alkynylated alpha-bromocinnamates can be converted by a visible-light-mediated photocascade reaction with molecular oxygen into either indenones or dihydroindeno[1,2-c]chromenes. The one-step process features key photochemical steps, that is, the initial activation of vinyl bromides through energy transfer to give alpha-ketoradicals in a reaction with molecular oxygen, followed by alpha-oxidation of an arene moiety by 6-pi electrocyclization, and subsequent hydroxylation by an electron-transfer process from the same photocatalyst leads to the dihydroindeno[1,2-c]chromenes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PHOTOREDOX CATALYSIS; RING-CLOSURE; PHOTOCHEMICAL-SYNTHESIS; ORGANIC-SYNTHESIS; ENERGY-TRANSFER; SINGLE-LAYER; PHOTOCATALYSIS; CYCLIZATIONS; COMPLEX; ALKYNES; dioxygen activation; indenones; photocascades; taiwaniaquinoids; alpha-ketoradicals |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| 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: | 11 Feb 2019 14:33 |
| URI: | https://pred.uni-regensburg.de/id/eprint/1362 |
Actions (login required)
 |
View Item |
