TY - JOUR AU - Tuba, Róbert AU - Kurdi, Róbert AU - Pályi, Gyula TI - THE TALE OF ALKYL- AND ACYLCOBALT CARBONYLS, JF - JOURNAL OF ORGANOMETALLIC CHEMISTRY J2 - J ORGANOMET CHEM VL - .2024 PY - 2024 SP - 123029 PG - 26 SN - 0022-328X DO - 10.1016/j.jorganchem.2024.123029 UR - https://m2.mtmt.hu/api/publication/34546230 ID - 34546230 LA - English DB - MTMT ER - TY - PAT AU - Tuba, Róbert AU - Valyon, József AU - Hancsók, Jenő AU - Lónyi, Ferenc AU - Tomasek, Szabina AU - Nagyházi, Márton AU - Miskolczi, Norbert AU - Horváth, D. Z. AU - Vikár, Anna AU - Balla, Á. TI - Catalysts system and process for the preparation of alpha olefins and alpha olefin-containing products from long-chain paraffins PY - 2023 UR - https://m2.mtmt.hu/api/publication/33833364 ID - 33833364 LA - English DB - MTMT ER - TY - JOUR AU - Farkas, Vajk AU - Nagyházi, Márton AU - Anastas, Paul T. AU - Klankermayer, Jürgen AU - Tuba, Róbert TI - Making Persistent Plastics Degradable JF - CHEMSUSCHEM J2 - CHEMSUSCHEM VL - 16 PY - 2023 IS - 15 PG - 8 SN - 1864-5631 DO - 10.1002/cssc.202300553 UR - https://m2.mtmt.hu/api/publication/33779022 ID - 33779022 LA - English DB - MTMT ER - TY - PAT AU - Tuba, Róbert AU - Valyon, József AU - Hancsók, Jenő AU - Lónyi, Ferenc AU - Tomasek, Szabina AU - Nagyházi, Márton AU - Miskolczi, Norbert AU - Horváth, D. Z. AU - Vikár, Anna AU - Balla, Á. TI - Katalizátorrendszer és eljárás alfa-olefinek és alfa-olefin-tartalmú termékek előállítására hosszú szénláncú paraffinokból PY - 2022 UR - https://m2.mtmt.hu/api/publication/33833358 ID - 33833358 N1 - benyújtások dátumai: I. 2022.02.18. (HU / P2200042); II. 2022.04.14., HU /P2200120, III. 2022.11.15., HU / P2200450 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Yoon, Ki-Young AU - Noh, Jinkyung AU - Gan, Quan AU - Edwards, Julian P. AU - Tuba, Róbert AU - Choi, Tae-Lim AU - Grubbs, Robert H. TI - Scalable and continuous access to pure cyclic polymers enabled by ‘quarantined’ heterogeneous catalysts JF - NATURE CHEMISTRY J2 - NAT CHEM VL - 14 PY - 2022 IS - 11 SP - 1242 EP - 1248 PG - 7 SN - 1755-4330 DO - 10.1038/s41557-022-01034-8 UR - https://m2.mtmt.hu/api/publication/33262683 ID - 33262683 LA - English DB - MTMT ER - TY - JOUR AU - Balla, Áron AU - Nagyházi, Márton AU - Turczel, Gábor AU - Solt, Hanna Erzsébet AU - Rosenbergerné Mihályi, Magdolna AU - Hancsók, Jenő AU - Valyon, József AU - Nagy, Tibor AU - Kéki, Sándor AU - Anastas, Paul T. AU - Tuba, Róbert TI - Hydrolytic dehydrogenation of ammonia borane in neat water using recyclable zeolite-supported cyclic alkyl amino carbene (CAAC)–Ru catalysts JF - NEW JOURNAL OF CHEMISTRY J2 - NEW J CHEM VL - 46 PY - 2022 SP - 16309 EP - 16316 PG - 8 SN - 1144-0546 DO - 10.1039/D2NJ03334H UR - https://m2.mtmt.hu/api/publication/33062564 ID - 33062564 AB - Highly effective ammonia borane dehydrogenation was carried out using a heterogenized ruthenium-CAAC complex in water. LA - English DB - MTMT ER - TY - JOUR AU - Deme, János AU - Nagyházi, Márton AU - May, Zoltán AU - Hancsók, Jenő AU - Valyon, József AU - Kéki, Sándor AU - Tuba, Róbert AU - Turczel, Gábor TI - Synthesis and catalytic olefin metathesis activity of amberlyst-15 supported cyclic and bicyclic alkyl amino carbene ruthenium complexes JF - REACTION KINETICS MECHANISMS AND CATALYSIS J2 - REACT KINET MECH CATAL VL - 135 PY - 2022 IS - 5 SP - 2519 EP - 2531 PG - 13 SN - 1878-5190 DO - 10.1007/s11144-022-02261-3 UR - https://m2.mtmt.hu/api/publication/33014942 ID - 33014942 N1 - Funding Agency and Grant Number: ELKH Research Centre for Natural Sciences Funding text: Open access funding provided by ELKH Research Centre for Natural Sciences. AB - Amberlyst-15 supported cyclic alkyl amino carbene and bicyclic alkyl amino carbene ruthenium olefin metathesis catalysts for sustainable catalytic applications have been synthesized by the well-known wet impregnation method utilizing ionic complex/support interaction. Surface coverages are as high as 4 and 7 wt% were achieved in the case of the significantly higher pore volume Amberlyst-15, compared to Amberlyst-36. These phase separable catalysts show high activity in cross metathesis, ring closing metathesis and ethenolysis reactions compared to the reported heterogenized olefin metathesis catalysts. Leeching tests revealed no more than 1.5 ppm ruthenium content for the investigated metathesis reactions, which is well below the accepted 10 ppm limit in case of consumer products. © 2022, The Author(s). LA - English DB - MTMT ER - TY - JOUR AU - Nagyházi, Márton AU - Lukacs, Adam AU - Turczel, Gábor AU - Hancsók, Jenő AU - Valyon, József AU - Bényei, Attila Csaba AU - Kéki, Sándor AU - Tuba, Róbert TI - Catalytic Decomposition of Long-Chain Olefins to Propylene via Isomerization-Metathesis Using Latent Bicyclic (Alkyl)(Amino)Carbene-Ruthenium Olefin Metathesis Catalysts JF - ANGEWANDTE CHEMIE-INTERNATIONAL EDITION J2 - ANGEW CHEM INT EDIT VL - 61 PY - 2022 IS - 28 PG - 7 SN - 1433-7851 DO - 10.1002/anie.202204413 UR - https://m2.mtmt.hu/api/publication/32853951 ID - 32853951 N1 - Utánközlés (párhuzamos közlés): 32787513-as publikáció Funding Agency and Grant Number: Economic Development and Innovation Operative Program of Hungary [GINOP-2.3.2-15-2016-00053]; European Union; Hungarian National Research, Development and Innovation Office-NKFIH [TKP-108-9/PALY-2021] Funding text: The authors acknowledge the financial support of the project by the Economic Development and Innovation Operative Program of Hungary, GINOP-2.3.2-15-2016-00053: Development of liquid fuels having high hydrogen content in the molecule (contribution to sustainable mobility). The Project is supported by the European Union. Thanks are due to Tibor Nagy (Department of Applied Chemistry, University of Debrecen) for HR-MS measurements. A. Benyei thanks the Hungarian National Research, Development and Innovation Office-NKFIH under the Grant NKFI NN-128368. R. Tuba thanks the Hungarian National Research, Development and Innovation Office-NKFIH under the Grant TKP-108-9/PALY-2021. AB - One of the most exciting scientific challenges today is the catalytic degradation of non-biodegradable polymers into value-added chemical feedstocks. The mild pyrolysis of polyolefins, including high-density polyethylene (HDPE), results in pyrolysis oils containing long-chain olefins as major products. In this paper, novel bicyclic (alkyl)(amino)carbene ruthenium (BICAAC-Ru) temperature-activated latent olefin metathesis catalysts, which can be used for catalytic decomposition of long-chain olefins to propylene are reported. These thermally stable catalysts show significantly higher selectivity to propylene at a reaction temperature of 75 degrees C compared to second generation Hoveyda-Grubbs or CAAC-Ru catalysts under ethenolysis conditions. The conversion of long-chain olefins (e.g., 1-octadecene or methyl oleate) to propylene via isomerization-metathesis is performed by using a (RuHCl)(CO)(PPh3)(3) isomerization co-catalyst. The reactions can be carried out at a BICAAC-Ru catalyst loading as low as 1 ppm at elevated reaction temperature (75 degrees C). The observed turnover number and turnover frequency are as high as 55 000 and 10 000 mol(propylene) mol(catalyst)(-1) h(-1), respectively. LA - English DB - MTMT ER - TY - JOUR AU - Nagyházi, Márton AU - Almási, Balázs AU - Lukács, Ádám AU - Bényei, Attila Csaba AU - Nagy, Tibor AU - Kéki, Sándor AU - Tuba, Róbert TI - Synthesis and characterization of novel PEPPSI type bicyclic (alkyl)(amino)carbene (BICAAC)-Pd complexes JF - JOURNAL OF MOLECULAR STRUCTURE J2 - J MOL STRUCT VL - 1256 PY - 2022 PG - 10 SN - 0022-2860 DO - 10.1016/j.molstruc.2022.132483 UR - https://m2.mtmt.hu/api/publication/32687686 ID - 32687686 N1 - Eötvös Loránd Research Network, Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Magyar tudósok körútja 2., H-1519, Budapest, 286, Hungary Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary Export Date: 19 February 2022 CODEN: JMOSB Correspondence Address: Nagyházi, M.; Eötvös Loránd Research Network, Magyar tudósok körútja 2., H-1519, Hungary; email: nagyhazi.marton@ttk.hu Funding details: European Commission, EC Funding details: European Regional Development Fund, ERDF, VEKOP-2.3.2-16-2017-00013 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFIH, NKFI NN-128368 Funding text 1: Thanks are due for the support provided by the European Union and the State of Hungary, co-financed by the European Regional Development Fund in the framework of the project No. VEKOP-2.3.2-16-2017-00013. A. Bényei thanks the Hungarian National Research, Development and Innovation Office – NKFIH under the Grant NKFI NN-128368. AB - A series of bicyclic alkylamino carbenes (BICAAC) (where N-aryl = dipp, mes, 2,6-dimethyl-4-(dimethylamino)phenyl, 5a–d) and their novel air- and moisture-resistant pyridine (pyridine, 4-dimethylaminopyridine) containing palladium Pd(II) complexes (6a–e) were synthetized and characterized. As novel examples of the PEPPSI (“pyridine enhanced precatalyst preparation stabilization and initiation”)-Pd compounds, the reported complexes have shown high activity in Mizoroki–Heck coupling reaction even at as low as 100 ppm loading (TON up to 10000). Kinetic studies revealed that reactions carried out in the presence of elemental mercury resulted decrease in activity. It indicates that the coupling reaction may have both molecular and Pd(0)-mediated catalytic paths. © 2022 The Authors LA - English DB - MTMT ER - TY - JOUR AU - Novodárszki, Gyula AU - Szabó, Blanka AU - Auer, Róbert AU - Tóth, Katalin AU - Leveles, László AU - Barthos, Róbert AU - Turczel, Gábor AU - Pászti, Zoltán AU - Valyon, József AU - Rosenbergerné Mihályi, Magdolna AU - Tuba, Róbert TI - Propylene synthesis via isomerization–metathesis of 1-hexene and FCC olefins JF - CATALYSIS SCIENCE & TECHNOLOGY J2 - CATAL SCIENCE & TECHNOLOGY VL - 11 PY - 2021 IS - 18 SP - 6257 EP - 6270 PG - 14 SN - 2044-4753 DO - 10.1039/D1CY00269D UR - https://m2.mtmt.hu/api/publication/32219197 ID - 32219197 LA - English DB - MTMT ER -