Výsledky vyhledávání - "Matthias Leven"

Akademický článek

Metal-mediated aminocatalysis provides mild conditions: Enantioselective Michael addition mediated by primary amino catalysts and alkali-metal ions

Autor: Matthias Leven, Jörg M. Neudörfl, Bernd Goldfuss

Publikováno v: Beilstein Journal of Organic Chemistry, Vol 9, Iss 1, Pp 155-165 (2013)

Four catalysts based on new amides of chiral 1,2-diamines and 2-sulfobenzoic acid have been developed. The alkali-metal salts of these betaine-like amides are able to form imines with enones, which are activated by Lewis acid interaction for nucleoph

Externí odkaz: https://doaj.org/article/1608073a8a034964aca0569194c2d41f

Zobrazit plný text záznamu

Semi-Crystalline Polyoxymethylene

Autor: Matthias, Hoffmann, Matthias, Hermesmann, Matthias, Leven, Walter, Leitner, Thomas Ernst, Müller

Publikováno v: Polymers. 14(5)

Hydroxy-terminated polyoxymethylene

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::5400ae0aa7664a52f195d46f28cf626e
https://pubmed.ncbi.nlm.nih.gov/35267705

Zobrazit plný text záznamu

Semi-Crystalline Polyoxymethylene-co-Polyoxyalkylene Multi-Block Telechels as Building Blocks for Polyurethane Applications

Autor: Matthias Hoffmann, Matthias Hermesmann, Matthias Leven, Walter Leitner, Thomas Ernst Müller

Publikováno v: Polymers 14(5), 882 (2022). doi:10.3390/polym14050882 special issue: "Special Issue "Polymer Dynamics: Bulk and Nanoconfined Polymers" / Special Issue Editor: Prof. Sasaki Takashi, Guest Editor"
Polymers; Volume 14; Issue 5; Pages: 882

Polymers 14(5), 882 (2022). doi:10.3390/polym14050882 special issue: "Special Issue "Polymer Dynamics: Bulk and Nanoconfined Polymers" / Special Issue Editor: Prof. Sasaki Takashi, Guest Editor"
Published by MDPI, Basel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17e236010b0bead5dc4cf7984e9d19ba
https://publications.rwth-aachen.de/record/843468

Zobrazit plný text záznamu

Ene–Diene Transmissive Cycloaddition Reactions with Singlet Oxygen: The Vinylogous Gem Effect and Its Use for Polyoxyfunctionalization of Dienes

Autor: Alan de Kiff, Angelika Eske, Jörg-M. Neudörfl, Matthias Leven, Margarethe Kleczka, Bernd Goldfuss, Axel G. Griesbeck, Moritz Vollmer

Publikováno v: The Journal of Organic Chemistry. 79:1818-1829

The singlet oxygen reactivities and regioselectivities of the model compounds 1b-d were compared with those of the geminal (gem) selectivity model ethyl tiglate (1a). The kinetic cis effect is k(E)/k(Z) = 5.2 for the tiglate/angelate system 1a/1a' wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1a2f9032b518d05f7bd9ee9a53e43f6
https://doi.org/10.1021/jo5000434

Zobrazit plný text záznamu

Metal-mediated aminocatalysis provides mild conditions: Enantioselective Michael addition mediated by primary amino catalysts and alkali-metal ions

Autor: Jörg M. Neudörfl, Matthias Leven, Bernd Goldfuss

Publikováno v: Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, Vol 9, Iss 1, Pp 155-165 (2013)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b0ac62b7ac7f76b4e8b23f5cbaabff0
http://europepmc.org/articles/PMC3566766

Zobrazit plný text záznamu

Electronegativity Governs Enantioselectivity: Alkyl-Aryl Cross-Coupling with Fenchol-Based Palladium-Phosphorus Halide Catalysts

Autor: Jörg M. Neudörfl, Bernd Goldfuss, Matthias Leven, Roberto Blanco Trillo

Publikováno v: Advanced Synthesis & Catalysis. 354:1451-1465

A series of bulky, modular, monodentate, fenchol-based phosphites has been employed in an intramolecular palladium-catalyzed alkyl-aryl cross-coupling reaction. This enantioselective α-arylation of N-(2-bromophenyl)-N-methyl-2-phenylpropanamide is a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a59e25f817193dc69ed818eb33d56018
https://doi.org/10.1002/adsc.201100924

Zobrazit plný text záznamu

Enantioselective Alkynylation of Aromatic Aldehydes: Pyridyl Phenylene Terpeneol Catalysts with Flexible Biaryl Axes

Autor: Bernd Goldfuss, Matthias Leven, David Müller

Publikováno v: Synlett. 2011:2505-2508

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b6e0c48a5eb20b499caf7a1df87962f
https://doi.org/10.1055/s-0030-1260325

Zobrazit plný text záznamu

ChemInform Abstract: Ene-Diene Transmissive Cycloaddition Reactions with Singlet Oxygen: The Vinylogous Gem Effect and Its Use for Polyoxyfunctionalization of Dienes

Autor: Axel G. Griesbeck, Matthias Leven, Margarethe Kleczka, Angelika Eske, Joerg‐M. Neudoerfl, Moritz Vollmer, Bernd Goldfuss, Alan de Kiff

Publikováno v: ChemInform. 45

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49bfb74da5066aaba571b8aebda54bcd
https://doi.org/10.1002/chin.201429041

Zobrazit plný text záznamu

ChemInform Abstract: Enantioselective Alkynylation of Aromatic Aldehydes: Pyridyl Phenylene Terpeneol Catalysts with Flexible Biaryl Axes

Autor: David N. Mueller, Matthias Leven, Bernd Goldfuss

Publikováno v: ChemInform. 43

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4883209699cc9af0cd6e47d092ec62dc
https://doi.org/10.1002/chin.201210061

Zobrazit plný text záznamu

Control of enantioselectivity with flexible biaryl axes: terpene-based alkylzinc catalysts in enantioselective dialkylzinc additions

Autor: Bernd Goldfuss, Jörg M. Neudörfl, Matthias Leven, Nils Schlörer

Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 16(45)

New enantiopure pyridyl alcohols are efficiently accessible through few synthetic steps from commercially available terpenes, that is, (+)-fenchone, (-)-menthone and (—)— verbenone as well as 2,6-diphenylpyridine. These chelating pyridyl alcohols

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37b8555c5bf7c019997ed4afd6865df0
https://pubmed.ncbi.nlm.nih.gov/20927784

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání