Výsledky vyhledávání - "Karsten Nordhoff"

Synthesis and Structures of Homoleptic Methyl- and Phenylthiomethylaluminium Complexes [Al(CH2SR)3](R = Me, Ph)

Autor: Clemens Bruhn, Tobias Rüffer, Karsten Nordhoff, Eduard B. Rusanov, Dirk Steinborn

Publikováno v: Zeitschrift für anorganische und allgemeine Chemie. 628:421-427

Sulfur-substituted methylmercury compounds [Hg(CH2SR)2](1a, R = Me; 1b, R = Ph) react with aluminium amalgam in refluxing toluene with transmetallation to give homoleptic tris(thiomethyl)aluminium complexes [Al(CH2SR)3](2a, R = Me; 2b, R = Ph) (degre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ca24e247dafc29db7fa899d0c64cade
https://doi.org/10.1002/1521-3749(200202)628:2<421::aid-zaac421>3.0.co

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Mechanism of the Formation of Platina-β-diketones: A DFT Study

Autor: Dirk Steinborn, Karsten Nordhoff and

Publikováno v: Organometallics. 20:1408-1418

Based on experimental findings that formation of dinuclear platina-β-diketones [Pt2(μ-Cl2{(COR)2H}2] from reactions of hexachloroplatinic acid with silylated alkynes R‘C⋮CSiMe3 (R = CH2R‘) proceeds most likely via terminal alkyne complexes of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5378d8caacc349ba137a3accded21115
https://doi.org/10.1021/om0008880

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On the Reactivity of Platina-β-diketones - Synthesis and Characterization of Acylplatinum(II) Complexes

Autor: Julian A. Davies, Dirk Steinborn, Ingo Jolk, Tobias Hoffmann, Kristin Kirschbaum, Michael Gerisch, Harry Schmidt, Karsten Nordhoff, Clemens Bruhn

Publikováno v: Zeitschrift für anorganische und allgemeine Chemie. 626:661-666

The platina-β-diketones [Pt2{(COR)2H}2(μ-Cl)2] (1, R = Me a, Et b) react with phosphines L in a molar ratio of 1 : 4 through cleavage of acetaldehyde to give acylplatinum(II) complexes trans-[Pt(COR)Cl(L)2] (2) (R/L = Me/P(p-FC6H4)3a, Me/P(p-CH2=CH

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a0356ab27a7484187cabbd81d8c6473
https://doi.org/10.1002/(sici)1521-3749(200003)626:3<661::aid-zaac661>3.0.co

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MO Theoretical Investigation of the Cis Effect Observed in Mono- and Dihalodiazenes

Autor: Ernst Anders, Karsten Nordhoff

Publikováno v: The Journal of Organic Chemistry. 64:7485-7491

The relative energies of the different isomers of diazene 2 and its mono and dihalogeno derivatives 1 and 3−6 have been calculated using ab initio (up to the MP2/6-311+G*//MP2/6-311+G*), DFT (up the to BP86/6-311++G(3df,3pd)//BP86/6-311++G(3df,3pd

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::61b3dd3c4ec5cdb57a8914239cc64dad
https://doi.org/10.1021/jo990779z

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The Stabilization of Lithiated Organic Compounds by Water as a Ligand – Synthesis of a New Lithium–Imidazole Complex and Regioselective Reactions with Selected Electrophiles

Autor: Jens Atzrodt, Karsten Nordhoff, Ernst Anders, Rainer Beckert, Michael Bräuer, Helmar Görls

Publikováno v: European Journal of Organic Chemistry. 1998:2557-2563

The deprotonation of the 4H-imidazoles 1 by lithium hydride yields the lithiated derivatives 2 which contain a stable delocalized anion. Surprisingly, the X-ray crystal structure analysis of 2a reveals one molecule of water in the first complexation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e88e1d0a78dc042f753ccf3f5cec6e1
https://doi.org/10.1002/(sici)1099-0690(199811)1998:11<2557::aid-ejoc2557>3.0.co

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Dipeptidyl peptidase IV, aminopeptidase N and DPIV/APN-like proteases in cerebral ischemia

Autor: Michael Täger, Dirk Reinhold, Alexander Goihl, Karsten Nordhoff, Peter Dr. Röhnert, Frank Striggow, Patrick Emmerlich, Sabine Wrenger, Ute Bank, Siegfried Ansorge, Werner Schmidt

Publikováno v: Journal of Neuroinflammation
Journal of Neuroinflammation, Vol 9, Iss 1, p 44 (2012)
Journal of neuroinflammation 9(1), 557 (2012). doi:10.1186/1742-2094-9-44

Background Cerebral inflammation is a hallmark of neuronal degeneration. Dipeptidyl peptidase IV, aminopeptidase N as well as the dipeptidyl peptidases II, 8 and 9 and cytosolic alanyl-aminopeptidase are involved in the regulation of autoimmunity and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca1897c8c4be852a105431660d6dc68c
https://pubmed.ncbi.nlm.nih.gov/22373413

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Outside or inside: role of the subcellular localization of DP4-like enzymes for substrate conversion and inhibitor effects

Autor: Heiko Julius, Dirk Reinhold, Anke Heimburg, Ute Bank, Siegfried Ansorge, Karsten Nordhoff, Michael Täger, Astrid Wohlfarth, Martin Helmuth, Gudrun Koch, Doreen Breyer

Publikováno v: Biological Chemistry. 392

The discovery of the DP4-related enzymes DP8 and DP9 raised controversial discussion regarding the physiological and pathophysiological function of distinct members of the DP4 family. Particularly with regard to their potential relevance in regulatin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29e1ca3808d779524673a70a7518b5e9
https://doi.org/10.1515/bc.2011.025

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Novel aspects of cellular action of dipeptidyl peptidase IV/CD26

Autor: Michael Täger, Anke Heimburg, Doreen Breyer, Anja Thielitz, Ute Bank, Siegfried Ansorge, Dirk Reinhold, Heiko Julius, Karsten Nordhoff

Publikováno v: Biological chemistry. 392(3)

The cellular dipeptidyl peptidase IV (DPIV, E.C.3.4.14.5, CD26) is a type II membrane peptidase with various physio-logical functions. Our main knowledge on DPIV comes from studies of soluble DPIV which plays a role in regulation of glucose homeostas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fade4f735cf8c8eb7fae6af76a97d221
https://pubmed.ncbi.nlm.nih.gov/21194362

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