Search Results - "MICHALIK, Manfred"

new unusual low molecular weight carbohydrate in the red algal genus Hypoglossum (Delesseriaceae, Ceramiales) and its possible function as an osmolyte by Karsten, U, Michalik, D, Michalik, M, West, J.A

“…The low molecular weight carbohydrates in various species of the red algal genus Hypoglossum (Delesseriaceae, Ceramiales) were analysed using HPLC, 1H and…”
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Dissolved and particulate phosphorus forms in a eutrophic shallow lake by SELIG, Uwe, HÜBENER, Thomas, MICHALIK, Manfred

“…Soluble and particulate phosphorus forms in the surface water of the eutrophic shallow Lake Bützow were investigated from March to November 1998. Soluble…”
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d-2-Deoxy-2-fluoro- chiro-inositol—a new member of the deoxy fluoro inositol family by Miethchen, Ralf, Pundt, Thomas, Michalik, Manfred

“…[Display omitted] An efficient synthetic route to d-2-deoxy-2-fluoro- chiro-inositol has been developed with inversions of the C-1 and C-5 configuration of…”
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Pyrimidine acyclo-C-nucleosides by ring transformations of 2-formyl-L-arabinal by Bari, Ahmed, Feist, Holger, Michalik, Manfred, Peseke, Klaus

“…The protected 2-formyl-L-arabinal 2 reacted with thiourea and cyanamide in the presence of sodium hydride to afford via ring transformations the 5-[1R,2S-1,2-…”
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Catalytic asymmetric hydrosilylation of butadiynes: A new synthesis of optically active allenes by Tillack, Annegret, Michalik, Dirk, Koy, Cornelia, Michalik, Manfred

“…The Rh-catalyzed hydrosilylation of butadiynes to chiral allenes in the presence of chiral phosphine ligands is described. For the first time an enantiomeric…”
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Assessing P status and trophic level of two lakes by speciation of particulate phosphorus forms by SELIG, Uwe, MICHALIK, Manfred, HÜBENER, Thomas

“…Seasonal variability of dissolved and particulate P forms was investigated in two lakes in Mecklenburg-Western Pomerania (North-East Germany): the polymictic…”
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Alkylation of Zwitterionic Thiooxalic Acid Derivatives by Martens, Klaus, Scheunemann, Anke, Drexler, Kerstin, Dehne, Heinz, Reinke, Helmut, Michalik, Manfred

“…The new S-alkyl thiooxal-1-hydrazono-2-amidrazonium halides 2-4 were synthesized by reaction of the corresponding zwitterionic thiooxalic acid derivatives 1…”
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Efficient one-pot synthesis of tryptamines and tryptamine homologues by amination of chloroalkynes by Khedkar, Vivek, Tillack, Annegret, Michalik, Manfred, Beller, Matthias

“…The first general method is presented for the direct synthesis of tryptamine derivatives from commercially available aryl hydrazines and chloroalkylalkynes. A…”
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Heterocyclic Tricycles as Internal N-Glycosides from 2-Methyl-5-nitro-6-(2-nitrophenyl)-4-phenyl(2-furyl)tetrahydropyranols by Götze, Lutz, Michalik, Manfred, Peseke, Klaus, Quincoces, José, Reinke, Helmut

“…1-Methyl-10-nitro-11-phenyl(2-furyl)-2-aza-13-oxa-tricyclo[7.3.1.03,8]trideca-3,5,7-trienes 3 were synthesized via the reduction of the aromatic 2-nitro group…”
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Convenient synthesis of tryptophols and tryptophol homologues by hydroamination of alkynes by Khedkar, Vivek, Tillack, Annegret, Michalik, Manfred, Beller, Matthias

“…A novel method is presented for the one-pot synthesis of substituted 3-(2-hydroxyethyl)- and 3-(3-hydroxypropyl)indoles (tryptophols and homotryptophols) from…”
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A General Method for the Enantioselective Hydrogenation of β-Keto Esters using Monodentate Binaphthophosphepine Ligands by Hagemann, Bernhard, Junge, Kathrin, Enthaler, Stephan, Michalik, Manfred, Riermeier, Thomas, Monsees, Axel, Beller, Matthias

“…17 monodentate phosphepine ligands with a 4,5‐dihydro‐3H‐dinaphtho[2,1‐c;1′,2′‐e]phosphepine structural motif have been synthesized and tested in the…”
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Darstellung, Eigenschaften und Reaktionsverhalten von 2-(Dimethylaminomethyl)phenyl- und 8-(Dimethylamino)naphthylsubstituierten Lithiumhydridosilylamiden - Bildung von Silaniminen durch Lithiumhydrideliminierung by Junge, Kathrin, Popowski, Eckhard, Michalik, Manfred

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Enantioselective Hydrogenation of β-Ketoesters with Monodentate Ligands by Junge, Kathrin, Hagemann, Bernhard, Enthaler, Stephan, Oehme, Günther, Michalik, Manfred, Monsees, Axel, Riermeier, Thomas, Dingerdissen, Uwe, Beller, Matthias

“…Efficient and stable chiral monodentate phosphine ligands can be used in the ruthenium‐catalyzed enantioselective hydrogenation of β‐ketoesters (see scheme)…”
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Synthesis of chiral monodentate binaphthophosphepine ligands and their application in asymmetric hydrogenations by Junge, Kathrin, Hagemann, Bernhard, Enthaler, Stephan, Spannenberg, Anke, Michalik, Manfred, Oehme, Günther, Monsees, Axel, Riermeier, Thomas, Beller, Matthias

“…[Display omitted] A general synthesis of chiral monodentate 4,5-dihydro-3 H-dinaphthophosphepines 4 and a detailed study of the catalytic performance of the…”
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The Synthesis of Stable Intramolecularly Dialkylamino-Coordinated Silenes and Their Methyl Iodide Induced Isomerization into Cyclic Aminosilanes by Mickoleit, Martin, Schmohl, Kathleen, Michalik, Manfred, Oehme, Hartmut

“…The reaction of the (dichloromethyl)oligosilanes R(Me3Si)2SiCHCl2 4a−d (4a: R = Me; 4b: R = tBu; 4c: R = Ph; 4d: R = SiMe3) with…”
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Extracts and Sesquiterpene Derivatives from the Red Alga Laurencia chondrioides with Antibacterial Activity against Fish and Human Pathogenic Bacteria by Bansemir, Anne, Just, Natalie, Michalik, Manfred, Lindequist, Ulrike, Lalk, Michael

“…During screening of seaweeds from different places in Europe for antimicrobial activities against human and fish pathogenic bacteria, Laurencia chondrioides…”
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Nucleoside Analogues from Push-Pull Functionalized Branched-Chain Pyranosides by Kordian, Marcus, Feist, Holger, Kantlehner, Willi, Michalik, Manfred, Peseke, Klaus

“…The reaction of methyl 4,6-O-benzylidene-2-deoxy-α-D-erythro-hexopyranosid-3-ulose (1) with ethynylmagnesium bromide in tetrahydrofuran and subsequent…”
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NMR spectra of fluorinated carbohydrates by Michalik, Manfred, Hein, Martin, Frank, Michael

“…Recent advances in structural and conformational analysis of fluorinated carbohydrates by NMR spectroscopy are reviewed. Characteristic 1H, 13C, and 19F NMR…”
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Ab initio Study of Some Intramolecularly Donor-Stabilized Silenes by Wandschneider, Dirk, Michalik, Manfred, Oehme, Hartmut, Heintz, Andreas

“…Ab initio calculations were performed to predict geometric structures, stabilizing energies and rotational barriers of some intramolecularly donor‐stabilized…”
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Selective epimerization of l- chiro-inositol to l- muco- and d- chiro-inositol derivatives by Miethchen, Ralf, Sowa, Christian, Frank, Michael, Michalik, Manfred, Reinke, Helmut

“…In a one step procedure, l-1- O-benzyl-2- O-methyl- chiro-inositol ( 1) was acetalized to the l- muco-inositol derivatives 2, 3 and d-2- O-benzyl-3-…”
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