Schachtner, Josef and Bayer, Patrick and Jacobi von Wangelin, Axel (2016) A flow reactor setup for photochemistry of biphasic gas/liquid reactions. BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY, 12. pp. 1798-1811. ISSN 1860-5397,
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A home-built microreactor system for light-mediated biphasic gas/liquid reactions was assembled from simple commercial components. This paper describes in full detail the nature and function of the required building elements, the assembly of parts, and the tuning and interdependencies of the most important reactor and reaction parameters. Unlike many commercial thin-film and microchannel reactors, the described set-up operates residence times of up to 30 min which cover the typical rates of many organic reactions. The tubular microreactor was successfully applied to the photooxygenation of hydrocarbons (Schenck ene reaction). Major emphasis was laid on the realization of a constant and highly reproducible gas/liquid slug flow and the effective illumination by an appropriate light source. The optimized set of conditions enabled the shortening of reaction times by more than 99% with equal chemoselectivities. The modular home-made flow reactor can serve as a prototype model for the continuous operation of various other reactions at light/liquid/ gas interfaces in student, research, and industrial laboratories.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MULTICOMPONENT COUPLING REACTIONS; IN-TUBE REACTOR; SINGLET-OXYGEN; GAS-LIQUID; MICROSTRUCTURED REACTORS; AEROBIC OXIDATION; ENE-REACTION; MULTISTEP SYNTHESIS; SECONDARY-AMINES; MASS-TRANSFER; biphasic reactions; flow chemistry; gas phase; microreactor; oxygen; photochemistry |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. Axel Jacobi von Wangelin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Mar 2019 13:47 |
| Last Modified: | 28 Mar 2019 13:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3491 |
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