Mittwoch, 04. November 2015, 16:15 - 17:30 iCal
"Catalysts for a more sustainable chemistry"
Prof. Dr. Rhett Kempe / Universität Bayreuth
Hörsaal 3 der Fakultät für Chemie
Währinger Straße 38, 1090 Wien
Vortrag
Catalysts for a more sustainable chemistry
Rhett Kempe, Lehrstuhl für Anorganische Chemie II – Katalysatordesign,
Universität Bayreuth, Germany
Dwindling reserves of crude oil and other fossil carbon sources combined with environmental concerns have resulted in a call for the use of alternative, preferably renewable, resources. Aside from fuel, ultimately a wide variety of chemical feedstocks is derived from fossil sources. Renewable lignocellulosic materials or waste are abundantly available,[1] indigestible and therefore not useful as food products, and can be processed to give alcohols and polyols.[2] Thus, there is a high demand for new reactions that utilize alcohols and convert them into key chemicals.[3]
Recently, our group introduced the concept of acceptorless dehydrogenative condensations (ADC) for the catalytic synthesis of important aromatic N-heterocyclic compounds like pyrroles [3] and pyridines.[4] In such ADC reactions, alcohols become selectively hetero-connected via C-C and C-N bond formation steps. The deoxygenation of alcohols takes place via condensation steps and liberation of H2 leads to aromatization.
In the talk, the development of (i) the ADC concept, (ii) novel ADC reactions, (iii) robustly supported reusable catalysts for ADC, (iv) base metal catalysts,[5,6] and (v) novel catalytic concepts possible due to progress made in ADC recently, are discussed.
Veranstalter
Kontakt
Brigitte Schwarz
Fakultät für Chemie der Universität Wien
Dekanat
01/4277-52006
brigitte_schwarz@univie.ac.at
Erstellt am Freitag, 02. Oktober 2015, 14:24
Letzte Änderung am Montag, 05. Oktober 2015, 12:49