{"user_id":"48467","year":"2021","article_type":"original","status":"public","_id":"40998","keyword":["General Chemistry","Catalysis","Organic Chemistry"],"type":"journal_article","publisher":"Wiley","citation":{"ama":"Emmerling ST, Ziegler F, Fischer FR, et al. Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity. <i>Chemistry – A European Journal</i>. 2021;28(8). doi:<a href=\"https://doi.org/10.1002/chem.202104108\">10.1002/chem.202104108</a>","bibtex":"@article{Emmerling_Ziegler_Fischer_Schoch_Bauer_Plietker_Buchmeiser_Lotsch_2021, title={Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity}, volume={28}, DOI={<a href=\"https://doi.org/10.1002/chem.202104108\">10.1002/chem.202104108</a>}, number={8}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Emmerling, Sebastian T. and Ziegler, Felix and Fischer, Felix R. and Schoch, Roland and Bauer, Matthias and Plietker, Bernd and Buchmeiser, Michael R. and Lotsch, Bettina V.}, year={2021} }","apa":"Emmerling, S. T., Ziegler, F., Fischer, F. R., Schoch, R., Bauer, M., Plietker, B., Buchmeiser, M. R., &#38; Lotsch, B. V. (2021). Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity. <i>Chemistry – A European Journal</i>, <i>28</i>(8). <a href=\"https://doi.org/10.1002/chem.202104108\">https://doi.org/10.1002/chem.202104108</a>","ieee":"S. T. Emmerling <i>et al.</i>, “Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity,” <i>Chemistry – A European Journal</i>, vol. 28, no. 8, 2021, doi: <a href=\"https://doi.org/10.1002/chem.202104108\">10.1002/chem.202104108</a>.","mla":"Emmerling, Sebastian T., et al. “Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity.” <i>Chemistry – A European Journal</i>, vol. 28, no. 8, Wiley, 2021, doi:<a href=\"https://doi.org/10.1002/chem.202104108\">10.1002/chem.202104108</a>.","short":"S.T. Emmerling, F. Ziegler, F.R. Fischer, R. Schoch, M. Bauer, B. Plietker, M.R. Buchmeiser, B.V. Lotsch, Chemistry – A European Journal 28 (2021).","chicago":"Emmerling, Sebastian T., Felix Ziegler, Felix R. Fischer, Roland Schoch, Matthias Bauer, Bernd Plietker, Michael R. Buchmeiser, and Bettina V. Lotsch. “Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity.” <i>Chemistry – A European Journal</i> 28, no. 8 (2021). <a href=\"https://doi.org/10.1002/chem.202104108\">https://doi.org/10.1002/chem.202104108</a>."},"language":[{"iso":"eng"}],"publication":"Chemistry – A European Journal","publication_identifier":{"issn":["0947-6539","1521-3765"]},"author":[{"first_name":"Sebastian T.","last_name":"Emmerling","full_name":"Emmerling, Sebastian T."},{"first_name":"Felix","last_name":"Ziegler","full_name":"Ziegler, Felix"},{"full_name":"Fischer, Felix R.","last_name":"Fischer","first_name":"Felix R."},{"full_name":"Schoch, Roland","last_name":"Schoch","id":"48467","first_name":"Roland","orcid":"0000-0003-2061-7289"},{"orcid":"0000-0002-9294-6076","full_name":"Bauer, Matthias","last_name":"Bauer","id":"47241","first_name":"Matthias"},{"first_name":"Bernd","full_name":"Plietker, Bernd","last_name":"Plietker"},{"first_name":"Michael R.","last_name":"Buchmeiser","full_name":"Buchmeiser, Michael R."},{"full_name":"Lotsch, Bettina V.","last_name":"Lotsch","first_name":"Bettina V."}],"publication_status":"published","doi":"10.1002/chem.202104108","date_created":"2023-01-30T16:48:22Z","department":[{"_id":"35"},{"_id":"306"}],"volume":28,"date_updated":"2023-01-31T08:05:07Z","issue":"8","intvolume":"        28","abstract":[{"text":"Covalent organic frameworks (COFs) offer vast structural and chemical diversity enabling a wide and growing range of applications. While COFs are well-established as heterogeneous catalysts, so far, their high and ordered porosity has scarcely been utilized to its full potential when it comes to spatially confined reactions in COF pores to alter the outcome of reactions. Here, we present a highly porous and crystalline, large-pore COF as catalytic support in α,ω-diene ring-closing metathesis reactions, leading to increased macrocyclization selectivity. COF pore-wall modification by immobilization of a Grubbs-Hoveyda-type catalyst via a mild silylation reaction provides a molecularly precise heterogeneous olefin metathesis catalyst. An increased macro(mono)cyclization (MMC) selectivity over oligomerization (O) for the heterogeneous COF-catalyst (MMC:O=1.35) of up to 51 % compared to the homogeneous catalyst (MMC:O=0.90) was observed along with a substrate-size dependency in selectivity, pointing to diffusion limitations induced by the pore confinement.","lang":"eng"}],"title":"Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity"}