Within the framework of a ERASMUS+ program, Jolanta Jaśkowska and Kamila Tomera from Cracow University of Technology, Poland, will be visiting CQM and give two lectures on organic catalysis and phase transfer catalysis. They will join Ruilong Sheng, Senior Researcher of CQM, for a two-day seminar, scheduled as follows:
• 05 March 2024 - 14h00-16h00
“Green synthesis of bioactive compounds under phase transfer catalysis (PTC) conditions”
by Jolanta Jaśkowska, PhD - Krakow University of Technology, Poland
ABSTRACT
In recent years, research efforts have focused on the search for methods of synthesis of organic compounds that are characterized by a simplicity of the individual stages of the process and the use of readily available and safe reagents while maintaining high selectivity and efficiency. Moreover, a very important aspect is to limit the amount of harmful and environmentally toxic byproducts and waste, especially in larger-scale reactions. Therefore, "green chemistry" focused on the designing of products and processes that minimize or eliminate the use and generation of hazardous substances is playing an increasingly important role in synthesis processes. Phase transfer catalysis (PTC) is largely in line with the principles of green chemistry, because it allows to reduce toxic reagents and conduct the process in milder conditions, e.g. room temperature, atmospheric pressure. In addition, by conducting reactions with the use of PTC catalysts and in the presence of microwave radiation or ultrasounds, the process time can be shortened many times, and in many cases they also have a positive effect on selectivity. The research we have been conducting for several years has shown that by conducting reactions using PTC catalysts in the presence of microwave radiation or ultrasonic conditions, bioactive compounds with a very high purity of >95% can be successfully obtained in a short time of just a few minutes.
ABOUT LECTURER
PhD Jolanta Jaśkowska, Research and teaching assistant professor at the Institute of Organic Chemistry and Technology, Faculty of Chemical Engineering and Technology, Krakow University of Technology. In her scientific work, she conducts research which aim is to discover new bioactive compounds, particularly ligands of serotonin receptors. Moreover, she develops methods of synthesis in solvent-free conditions as a part of “green chemistry”. She has both theoretical and practical knowledge of managing research projects. Apart from participating in scientific projects, she has led many projects in cooperation with companies in pharmaceutical, cosmetic, and food industry. She is a co-author of 40 scientific publications and 13 granted patents. She has a documented knowledge of commercializing scientific research moreover she participated in numerous scientific internships, including: Stanford University (USA), Rutgers University (USA), National Technical University of Athens (Greece).
• 05 March 2024 - 16h20-17h20
“Click Chemistry in the synthesis of Bioactive Molecules, Functional Glycopolymers and Biomaterials”
by Ruilong Sheng, PhD - CQM - Madeira Chemistry Research Centre, Portugal
ABSTRACT
Click chemistry has been proven to be highly efficient due to its mild reaction conditions, high efficiency, good adaptivity to functional groups, and easy purification of products. The typical “click” chemistry involved Cu (I)-catalyzed azide-alkyne [3 + 2] cycloaddition (CuAAC), strain-promoted cycloaddition of alkynes and azides (SPAAC), thiol-involved click reactions, Diels-Alder [4+2]-type click reaction, oxime formation and so on. In this short lecture, combining our past research works, we will briefly introduce the progress of “click” reactions and discuss the application of Click chemistry and reactions in the synthesis of bioactive molecules, glycopolymers and glycopolypeptides, as well as functional biomaterials.
ABOUT LECTURER
Dr. Ruilong Sheng, received his B.Sc. (Biochemistry) in 2002 from South-central University for Nationalities, China, and Ph.D. (Organic chemistry) in 2008 from the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences (CAS). He conducted his postdoctoral research (2009-2011) on organic polymer chemistry and biomaterials and then worked as a research professor at Shanghai Institute of Organic Chemistry, CAS from (2011-2017). Then he worked at Université de Montréal and McGill University (2015-2017), Canada, as an invited scientist/professor. After 2017, he joined CQM-Centro de Química da Madeira at Universidade da Madeira, Portugal as a Senior/Leading researcher (R4) and group leader. His research interests include organic chemistry, macromolecular and polymer chemistry, natural products, supramolecular chemistry, photochemistry and fluorescent probes, biomaterials, and nanobiotechnology.
• 06 March 2024 - 14h00-16h00
“Catalytic dehydrogenation of paraffins – study of dehydrogenation of propane in the presence of CO2 over VOx/SBA -15. Heterogeneous catalysts – methods of preparation”
by Kamila Zeńczak-Tomera, PhD - Krakow University of Technology, Poland
ABSTRACT
Propene is a significant chemical feedstock for production of various valuable building-blocks for polymers production and chemical intermediates, such as propylene oxide, acrylonitrile, acrylic acid or cumene. The main sources of propene are steam cracking and fluid catalytic cracking. Additional sources are on-purpose technologies such as MTO and MTP processes (methanol to olefins/propene), olefin metathesis and propane dehydrogenation (PDH).The meaning of on-purpose technologies rising due to propylene gap. The recent years and the forecasts of propene demand show still increasing tendency. Among processes previously mentioned, PDH is very beneficial because it allows to convert low-value paraffin to value-added olefin with high selectivity. However, commercialized non-oxidative pathway has some limitations like high temperature need for achieving economically reasonable per-puss conversion of propane or cyclic catalyst regeneration. The dehydrogenation of propane with CO2 has been studied as an alternative technology for non-oxidative dehydrogenation of propane. In the new process, propene is obtained with higher yield than in the traditional one. This promoting effect of CO2 on the yield of propene is explained by its participation in direct oxidation of propane to propene, hydrogen consumption by reverse water-gas shift reaction and coke gasification.
ABOUT LECTURER
PhD Kamila Zeńczak-Tomera, Teaching assistant at the Institute of Organic Chemistry and Technology, Faculty of Chemical Engineering and Technology, Cracow University of Technology. The subject of scientific research of Dr. Eng. Kamila Zeńczak-Tomera is related to the management of carbon dioxide in chemical syntheses. It is extremely interesting from both chemical and ecological point of view. Moreover, she is interested in preparation heterogeneous catalysts based on nanomaterials. Her results were presented at numerous prestigious scientific conferences and papers. Dr. Eng. K. Zeńczak-Tomera is an ambitious person, constantly improving her skills (participation in training, summer schools, postgraduate studies, internships - including teaching - Erasmus + or research projects). Mrs. Dr. Eng. Kamila Zeńczak-Tomera was a member of the Faculty Council (elected) in the 2012-16 and 2016-2020. She is involved in activities promoting Polish science and the Faculty e.g. open days, Science Festival in Cracow or Małopolska Night of Scientists.
Date: 05-06 March 2024
Schedule: from 14h00 (PT, Lisbon time)
Venue: University of Madeira, Campus of Penteada, Conference room 0.57.
Fee: Free admittance.
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Registration until 03 March. |
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Registration form (closed!) - limited seats available |