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Mitte Juli fand die 19. internationale Zeolith-Konferenz in Perth, West Australien statt. Für die sechstägige Veranstaltung hatte die International Zeolite Association (IZA) Forscher und Interessenten aus Unternehmen und Industrie eingeladen, um über Forschungsergebnisse zu porösen Materialien zu sprechen. Dabei ging es nicht nur um Zeolithe, sondern auch um poröse Silicate sowie metallorganische und kovalente organische Gerüstverbindungen. Schwerpunkt war meist die Katalyse im Zusammenhang mit der Raffination organischer Naturstoffe.
Nach der offiziellen Eröffnung begann die Konferenz mit einem Plenarvortrag von Wataru Ueda, Professor an der Universität von Kangawa in Japan, über „Zeolite-type crystal structuring in complex metal oxide catalysts of group V and VI elements“. Die drei Teile des Vortrags behandelten Materialsynthese, Kristallstrukturen neuer Verbindungen und die Anwendung als Oxidationskatalysator. In einem der anschließenden Vorträge, dem von Peter Behrens, Professor an der Universität Hannover, ging es um mesoporöse Silicaverbindungen in der Galenik. Hierbei sollen Antibiotika über einen einstellbaren Zeitraum freigesetzt werden und die Entzündung, die durch ein Hörimplantat entsteht, verhindern.Am Dienstag stach der Vortrag von Martin Hartmann hervor, Professor an der Universität Erlangen und Mitglied des Ausschusses der IZA. Er präsentierte die Synthese neuer poröser Koordinationspolymere in ionischen Flüssigkeiten. Zudem stellte er eine neue hcp-Form von Zr-UiO-66 vor.Den Mittwochvormittag prägte Hubert Koller, Professor an der Universität Münster. Sein Vortrag umfasste NMR-Methoden wie SQ-DQ, 1H-NMR und SQ-TQ-1H-NMR. Mit diesen Methoden ließen sich schwer zu identifizierende Silanolgruppen in Si-NMR-Spektren eindeutig zuordnen.Beim IZA General Assembly am Donnerstag bekamen die Teilnehmer einen Einblick in die Organisation und deren Mitglieder. Es gab Informationen über neu hinzugewonnene und austretende Mitglieder des Komitees, für verschiedene Positionen innerhalb der Organisation wurden neue Verantwortliche gewählt.Der Keynotesprecher Haoyang Wu stellte am Freitag seine Ergebnisse zu Metallazolat-Gerüstverbindungen als Separationsmaterialien für Olefine vor. Selektivität und Ausbeuten dieser Verbindungen übertreffen etablierte Industrieseparatoren bei Standardbedingungen.Für‘s Lernen abseits der Chemie sorgten der Besuch zweier Weingebiete sowie einer Schokoladenmanufaktur.Timo Rabe, Kiel

Tagungsbericht

International Zeolite Conference 2019

Mitte Juli fand die 19. internationale Zeolith-Konferenz in Perth, West Australien statt. Für die sechstägige Veranstaltung hatte die International Zeolite Association (IZA) Forscher und Interessenten aus Unternehmen und Industrie eingeladen, um über Forschungsergebnisse zu porösen Materialien zu...

Die <a href="https://www.goech.at/" target="_blank" rel="noopener">&Ouml;sterreichische Chemische Gesellschaft (G&Ouml;CH)</a> ist ein 1897 gegr&uuml;ndeter Verein, der seit &uuml;ber 100 Jahren die Chemie in &Ouml;sterreich und somit die Interessen von &ouml;sterreichischen Chemikerinnen und Chemikern vertritt.

GÖCH

The 11 edition of the Young Investigator Workshop, organized by the Organic Division of EuChemS, was hosted at the University of Vienna. This format is solely dedicated to young researchers involved in various branches of organic chemistry.
28 participants from Europe, Russia, Israel, Canada and from the United States gathered early July (prior to the ESOC meeting) in Vienna, the capital of Austria. All participants were nominated by their local representatives (member societies), with a maximum of two nominees per country. Represented were Austria, Belgium, Canada, Cyprus, Czech Republic, Denmark, Finland, France, Ireland, Israel, Italy, Latvia, Norway, Portugal, Russia, Spain, Switzerland, the Netherlands, UK, and USA. The local organizer was Prof. Vittorio Pace and his group from the University of Vienna, who was supported by the presence of Prof. Berit Olofsson (Stockholm University, Sweden), Prof. Gianluca M. Farinola (University of Bari, Italy) and Prof. Christoforos Kokotos (University of Athens, Greece). The workshop was organized over three days and was divided into four sessions of up to eight oral presentations (25 min each). This format encouraged communication and exchange of ideas.Prof. Gianluca M. Farinola chaired the first session and Florian Rudroff (TU Wien, Austria) gave the opening lecture. His research was inspired by nature and was dedicated to catalytic cascades composed of different catalytic entities for the synthesis of high value chemicals in biochemical cell factories. The second speaker was Hennie Valkenier (University of Brussels, Belgium), who presented her work on artificial macrocyclic receptors for transmembrane transport of inorganic and organic ion pairs. She was followed by Maria Koyioni from the University of Cyprus, Cyprus, who presented methods to synthesize 5H-1,2,3-dithiazoles and dithiazolylidenes and gave novel insights into their chemistry. Moving from synthetic chemistry to material science, the next presenter was Marina Sekutor from the Ruder Boskovic Institute, Croatia. Her work focused on bulky cage hydrocarbons as ideal candidates for the study of London dispersion contributions to self-assembly, for example on metal surfaces.After a short coffee break, the scientific session continued with Ji-Woong Lee from the University of Copenhagen, Denmark, whose main research interest lies in the CO2-capture and sequestration or CO2-functionalization. Amongst other things, he reported a novel Michael-type cyanation reaction of coumarins by using CO2 as catalyst. Toni T. Metsänen from the University of Jyväskylä, Finland, presented a novel concept for synthetic ketoreductase mimics by bifunctional foldamer-type catalysts. The third speaker of this session was Vincent Coeffard from the Université de Nantes, France. He presented the use of light, oxygen and a photosensitizer to produce singlet oxygen (1O2) for the one-pot preparation of functionalized polycyclic compounds, starting from phenol derivatives. Christos I. Stathakis from the Aristotle University of Thessaloniki, Greece, complemented the first scientific day. He demonstrated the power of synthetic chemistry for the synthesis of complex racemic Vaticanol A. This resveratrol trimer was constructed by exploiting the quinone methide reactivity thrice as a key synthetic tool. After these exciting and very mixed scientific sessions, the first day was completed with a dinner at Salmbräu and a “good-night” cocktail at the Kunsthalle Wien. All participants enjoyed traditional Viennese cuisine, local beer and good drinks and had time for networking in a very relaxed atmosphere.The second day, chaired by Prof. Berit Olofsson, started with Andy McNally from Colorado State University, USA, who presented his newest results on the C-H functionalization of pyridines via phosphorous intermediates either in a catalytic or non-catalytic fashion. This late stage functionalization method led to novel C-C, C-O, C-N and C-S bond formations. Marcus Baumann (University College Dublin, Ireland) demonstrated the power of flow-chemistry in the second talk. He showed how dangerous reactions on industrial scale, like the monomerization of cyclopentadiene (reactive distillation), can be performed under controlled and safe reaction conditions, allowing further transformation into complex heterocyclic molecules in a continuous fashion. Ori Gidron presented a completely different topic from the Hebrew University of Jerusalem, Israel. He demonstrated the synthesis of twisted acenes. He addressed how the twisting affects the electronic and optical/chiroptical properties. Furthermore, he presented the first macrocyclic oligofuran. Silvia Marchesan (University of Trieste, Italy), who complemented the first scientific session of day two, gave insights into the field of peptide nanostructures. She used D-amino acids to achieve diverse supramolecular assemblies with putative applications in drug delivery and supramolecular catalysis. After a short coffee break, Melanie Hall (University of Graz, Austria) introduced the field of redox-neutral biocatalysis with redox enzymes. She presented an intramolecular bio-Tishchenko reaction catalyzed by alcohol dehydrogenases and an ene-reductase mediated asymmetric C=C bond isomerization. Alexander Astrand (University of Oslo, Norway) concluded the morning session and reported about a potential solution to antibiotic resistance by overcoming b-lactam resistance. Therefore, his team designed, synthesized and tested novel zinc chelators that inhibit metallo b-lactamases.Prof. Christoforos G. Kokotos chaired the third session, in which diverse synthetic methodologies were presented. Marcin Kalek (University of Warsaw, Poland) first reported on metal free C-H functionalization using iodonium salts as group transfer reagents and discussed relevant mechanistic aspects. Luis Cruz (University of Porto, Portugal) then gave an overview on flavylium-based system and their technological application, in particular for dyes, followed by Eliška Matoušová (Charles University, Czech Republic), who currently works on the development of new methods for the synthesis of polycyclic natural products and their analogues, notably to access quaternary centers with high enantioselectivity. The use of flavylium polymethine fluorophores was presented by Ellen M. Sletten (University of California, Los Angeles, USA), who applies them in high resolution, multicolor imaging in vivo. Marcos García Suero (Barcelona Institute of Science and Technology, Spain) provided an overview on new reactivity rules at carbon. The application of electrophilic metal homoenolates in the synthesis of cyclopropylamines was reported by Sophie Rousseaux (University of Ottawa, Canada), who showed that several cyclopropylamines could be obtained with high level of diastereoselectivity. Finally, Michal Juríček (University of Zurich, Switzerland) presented the design and synthesis of magnetic switches made of graphene fragments.The second day was concluded by dinner at Fuhrgassl-Huber, during which all participants could enjoy traditional Viennese cuisine and local wines, and interact in a very casual atmosphere.The last session on the third and final day was chaired by Prof. Vittorio Pace and highlighted the diversity of research performed in organic chemistry in Europe. Aleksandra Mitrovic (University of Belgrade, Serbia) gave insights into the covalent functionalization of black phosphorus, while sharing details on the spectroscopic techniques and DFT calculations employed to demonstrate the degree of functionalization thereby attained. Going back to synthetic methodologies, Alexey Sukhorukov (Russian Academy of Sciences, Russia) shared his latest results in the Umpolung functionalization of carbon atom in nitronates, and presented the scope and application of the methodology in total synthesis. Clemens Mayer (University of Groningen, The Netherlands) gave a presentation on the design of enzymes displaying artificial catalytic activity and on biocompatible transition metal catalysts, with a common feature of using stop codon suppression. The use of rarely employed 4-π photocyclisation of 1,2-dihydropyridazines was detailed by Susannah Coote (Lancaster University, UK), who currently employs this reaction to access bicyclic 1,2-diazetidine building blocks. Finally, Mihály Herczeg (University of Debrecen, Hungary) reported on the synthesis and biological studies of heparin analogue oligosaccharides.New to this year edition was the closing EurJOC lecture, given by Prof. Ilan Marek (Israel Institute of Technology, Israel), who gave an inspiring talk on remote functionalization, or how to merge metal-walk with C-C bond cleavage.Also present during the workshop were Susanne Haak, managing director chemistry journals at Thieme, and Anne Nijs, EurJOC editor-in-chief.The Young Investigator Award 2019 was given to Marcos García Suero from ICIQ, Spain, for his significant and innovative discoveries in photoredox catalysis, and particularly for his studies on the generation of carbyne equivalents for late stage functionalization of aromatic compounds, and of radical carbenoids for the stereoconvergent formation of cyclopropanes.Both participants from the Austrian delegation thank the Austrian Chemical Society for the nomination and the opportunity to participate in this dynamic event, which provided the chance to exchange with peers at similar career stage. The local organization by Vittorio Pace and his group was impeccable and the involvement of the division of organic chemistry of EuChems was highly appreciated.The Website of YIW 2019 can be found at:<ext-link ext-link-type="uri"><a href="https://www.euchems.eu/divisions/organic-chemistry-2/young-investigator-workshop-euchems-division-of-organic-chemistry/" target="_blank">www.euchems.eu/divisions/organic-chemistry-2/young-investigator-workshop-euchems-division-of-organic-chemistry/</a></ext-link>Melanie Hall, Florian Rudroff<figure><img src="https://media.graphcms.com/WINFEZFrQAOKc1Ufz5l1"><figcaption><label>Abb. 1: </label>Participants of the Young Investigator Workshops 2019. Foto: Vittorio Pace, University of Wien</figcaption></figure>

Tagungsbericht

International Zeolite Conference 2019

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