NMR Coworkers, Organisch-Chemisches Institut at WWU Münster

Articles

2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1994
1993

2023

Hoffmann E, Schache D, Höltke C, Soltwisch J, Niland S, Krähling T, Bergander K, Grewer M, Geyer C, Groeneweg L, Eble J, Vogl T, Roth J, Heindel W, Maus B, Helfen A, Faber C, Wildgruber M, Gerwing M, Hoerr V. Multiparametric chemical exchange saturation transfer MRI detects metabolic changes in breast cancer following immunotherapy. Journal of Translational Medicine. 2023;21(1): 577–577. doi: 10.1186/s12967-023-04451-6.
Drennhaus T, Leifert D, Lammert J, Drennhaus JP, Bergander K, Daniliuc CG, Studer A. Enantioselective Copper-Catalyzed Fukuyama Indole Synthesis from 2-Vinylphenyl Isocyanides. J. Am. Chem. Soc.. 2023;145(15) doi: 10.1021/jacs.3c01667.

2022

Xu P, Daniliuc CG, Bergander K, Stein C, Studer A. Letter Synthesis of Five-Membered Ring Systems Bearing gem- Difluoroalkenyl and Monofluoroalkenyl Substituents via Radical li-Bromo Fragmentation. ACS Catal.. 2022;12(19): 11934–11941. doi: 10.1021/acscatal.2c03775.

2021

Bhunia A, Bergander K, Daniliuc C, Studer A. Fe-Catalyzed Anaerobic Mukaiyama-Type Hydration of Alkenes using Nitroarenes. Angew. Chem. Int. Ed.. 2021;60(15): 8313–8320. doi: 10.1002/anie.202015740.
Wedi P, Farizyan M, Bergander K, Mück-Lichtenfeld C, van GM. Mechanism of the Arene-Limited Nondirected C−H Activation of Arenes with Palladium**. Angew. Chem. Int. Ed.. 2021;60(28): 15641–15649. doi: 10.1002/anie.202105092.
Simke J, Böckermann T, Bergander K, Klabunde S, Hansen M, Ravoo B. Photoresponsive host-guest chemistry and relaxation time of fluorinated cyclodextrin and T1=T* 2 arylazopyrazole-functionalized DOTA metal complexes. Org Biomol Chem. 2021;19(10): 2186–2191. doi: 10.1039/d0ob02482a.
You C., Sakai M., Daniliuc C.G., Bergander K., Yamaguchi S., Studer A.. Regio- and Stereoselective 1,2-Carboboration of Ynamides with Aryldichloroboranes. Angew. Chem. Int. Ed.. 2021;60(40): 21697–21701. doi: 10.1002/anie.202107647.

2017

Uhl W, Keweloh L, Hepp A, Stegemann F, Layh M, Bergander K. Reactivity of a P–H Functionalized Al/P-Based Frustrated Lewis Pair – Hydrophosphination versus Classic Adduct Formation. ZAAC - Zeitschrift für Anorganische und Allgemeine Chemie / Journal of Inorganic and General Chemistry. 2017;643(23): 1978–1990. doi: 10.1002/zaac.201700340.
Keuter J, Schwedtmann K, Hepp A, Bergander K, Janka O, Doerenkamp C, Eckert H, Mück-Lichtenfeld C, Lips F. Diradicaloid or Zwitterionic Character: The Non-Tetrahedral Unsaturated Compound [Si<inf>4</inf>{N(SiMe<inf>3</inf>)Dipp}<inf>4</inf>] with a Butterfly-type Si<inf>4</inf> Substructure. Angewandte Chemie - International Edition. 2017;56(44): 13866–13871. doi: 10.1002/anie.201705787.
Ascheberg C, Bock J, Buss F, Mueck-Lichtenfeld C, Daniliuc CG, Bergander K, Dielmann F, Hennecke U. Stable Bromiranium Ions with Weakly-Coordinating Counterions as Efficient Electrophilic Brominating Agents. Chem. Eur. J.. 2017;23(48) doi: 10.1002/chem.201701643.

2016

Buß F, Mehlmann P, Mück-Lichtenfeld C, Bergander K, Dielmann F. Reversible Carbon Dioxide Binding by Simple Lewis Base Adducts with Electron-Rich Phosphines. J. Am. Chem. Soc.. 2016;138(6): 1840–1843. doi: 10.1021/jacs.5b13116.
Oezguen T, Bergander K, Liu L, Daniliuc CG, Grimme S, Kehr G, Erker G. A Frustrated Phosphane-Borane Lewis Pair and Hydrogen: A Kinetics Study. Chem. Eur. J.. 2016;22(34) doi: 10.1002/chem.201603050.
Holtrichter-Roessmann T, Haeger I, Daniliuc C-G, Froehlich R, Bergander K, Troll C, Rieger B, Rojasla RS, Wuerthwein E-U. Catalytically Active N-Acylamidine-Zirconium Complexes: Synthesis, Structures, and Application in Ethylene Polymerization. Organometallics. 2016;35(11) doi: 10.1021/acs.organomet.6b00240.

2015

von Bargen KW, Niehaus E-M, Krug I, Bergander K, Wuerthwein E-U, Tudzynski B, Humpf H-U. Isolation and Structure Elucidation of Fujikurins A-D: Products of the PKS19 Gene Cluster in Fusarium fujikuroi. Journal of Natural Products. 2015;78(8): 1809–1815. doi: 10.1021/np5008137.

2014

Bergander K, Hüls D, Glaser S, Günther H, Luy B. A critical evaluation of heteronuclear TOCSY (HEHAHA) experiments for 1H,6Li spin pairs. Magnetic Resonance in Chemistry. 2014;52(12): 739–744. doi: 10.1002/mrc.4131.
Frommeyer M, Bergander K, Steinbüchel A. Guanidination of soluble lysine-rich cyanophycin yields a homoarginine-containing polyamide. Appl. Environ. Microbiol.. 2014;80(8): 2381–2389. doi: 10.1128/AEM.04013-13.
Seidel W, Arias M, Schaffrath M, Bergander K. A neutral tungsten-η2-alkyne-1-thio ligand forming a homoleptic Werner type complex with Cu(I). Dalton Trans.. 2014;2014(14) doi: 10.1039/b404821k.
Kondratov IS, Tolmachova NA, Dolovanyuk VG, Gerus II, Bergander K, Daniliuc C-G, Haufe G. Diels-Alder Reaction of Ethyl 3-Benzamido-2-oxo-6-(trifluoromethyl)-2H-pyran-5-carboxylate with Alkoxyalkenes as an Effective Approach to Trifluoromethyl-Containing 3-Aminobenzoic Acid Derivatives. Eur. J. Org. Chem.. 2014;2014(12) doi: 10.1002/ejoc.201301485.

2013

Holland M, Paul S, Schweizer W, Bergander K, Mück-Lichtenfeld C, Lakhdar S, Mayr H, Gilmour R. Noncovalent interactions in organocatalysis: modulating conformational diversity and reactivity in the MacMillan catalyst. Angew. Chem. Int. Ed.. 2013;52(31): 7967–71. doi: 10.1002/anie.201301864.
Von BK, Niehaus E, Bergander K, Brun R, Tudzynski B, Humpf H. Structure elucidation and antimalarial activity of apicidin F: An apicidin-like compound produced by Fusarium fujikuroi. Journal of Natural Products. 2013;76(11): 2136–2140. doi: 10.1021/np4006053.
Neue B, Reiermann R, Fröhlich R, Wibbeling B, Bergander K, Würthwein E. Isocyanide cyclization reactions: 4-methylene-4H-benzo[d][1,3]oxazine, 3-benzyl-4-methylene-3,4-dihydroquinazolines and 3-(4-benzyl)-3H-quinazolin-4- ones - Experiment and theory. Eur. J. Org. Chem.. 2013;2013(22): 4944–4952. doi: 10.1002/ejoc.201300293.

2012

Köhler J, Bergander K, Fabian J, Schepmann D, Wünsch B. Enantiomerically pure 1,3-dioxanes as highly selective NMDA and σ1 receptor ligands. J Med Chem. 2012;55(20): 8953–8957. doi: 10.1021/jm301166m.
Kleigrewe K, Aydin F, Hogrefe K, Piecuch P, Bergander K, Würthwein E, Humpf H. Structure elucidation of new fusarins revealing insights in the rearrangement mechanisms of the fusarium mycotoxin fusarin C. J Agric Food Chem. 2012;60(21): 5497–5505. doi: 10.1021/jf3009469.
Samanta R, Maji B, De SS, Bergander K, Fröhlich R, Mück-Lichtenfeld C, Mayr H, Studer A. Nucleophilic addition of enols and enamines to α,β-unsaturated acyl azoliums: Mechanistic studies. Angew. Chem. Int. Ed.. 2012;51(21): 5234–5238. doi: 10.1002/anie.201109042.
Kondratov I, Dolovanyuk V, Tolmachova N, Gerus I, Bergander K, Fröhlich R, Haufe G. Reactions of β-alkoxyvinyl polyfluoroalkyl ketones with ethyl isocyanoacetate and its use for the synthesis of new polyfluoroalkyl pyrroles and pyrrolidines. Org Biomol Chem. 2012;10(44): 8778–8785. doi: 10.1039/c2ob26176f.

2011

Niewerth H, Bergander K, Chhabra S, Williams P, Fetzner S. Synthesis and biotransformation of 2-alkyl-4(1H)-quinolones by recombinant Pseudomonas putida KT2440. Applied Microbiology and Biotechnology. 2011;91(5): 1399–408. doi: 10.1007/s00253-011-3378-0.
Kleine T, Bergander K, Fröhlich R, Wibbeling B, Würthwein E. Ring-closure reactions of 1,2-diaza-4,5-benzoheptatrienyl metal compounds: Experiment and theory. J. Org. Chem.. 2011;76(7): 1979–1991. doi: 10.1021/jo2001534.
Husstedt W, Wiehle S, Stillig C, Bergander K, Grimme S, Haufe G. Synthesis and preferred conformations of all regio- and diastereoisomeric methyl 2,3-fluorohydroxyalkanoates. Eur. J. Org. Chem.. 2011;2011(2): 355–363. doi: 10.1002/ejoc.201001224.
Tolmachova N, Dolovanyuk V, Gerus I, Kondratov I, Polovinko V, Bergander K, Haufe G. Catalytic hydrogenation of 3-amino-6-(trifluoromethyl)-5,6-dihydropyridin- 2(1 H)-ones and its use in the synthesis of trifluoromethyl-containing mimetics of ornithine and thalidomide. Synthesis. 2011;2011(7): 1149–1156. doi: 10.1055/s-0030-1258448.

2010

Uhl W, Rohling M, Würthwein E, Ghavtadze N, Bergander K. Facile synthesis of an unsaturated spiro germane by hydroalumination and intramolecular 1,1-carbalumination. Organometallics. 2010;29(21): 5236–5240. doi: 10.1021/om100359k.
Fehling E, Bergander K, Klein E, Weber N, Vosmann K. Thiol-functionalized copolymeric polyesters by lipase-catalyzed esterification and transesterification of 1,12-dodecanedioic acid and its diethyl ester, respectively, with 1-thioglycerol. Biotechnology Letters. 2010;32(10): 1463–1471. doi: 10.1007/s10529-010-0311-z.
Attwood P, Ludwig K, Bergander K, Besant P, Adina-Zada A, Krieglstein J, Klumpp S. Chemical phosphorylation of histidine-containing peptides based on the sequence of histone H4 and their dephosphorylation by protein histidine phosphatase. BBA - Proteins and Proteomics. 2010;1804(1): 199–205. doi: 10.1016/j.bbapap.2009.10.007.

2009

Steinle A, Bergander K, Steinbüchel A. Metabolic engineering of Saccharomyces cerevisiae for production of novel cyanophycins with an extended range of constituent amino acids. Appl. Environ. Microbiol.. 2009;75(11): 3437–3446. doi: 10.1128/AEM.00383-09.
Klare H, Bergander K, Oestreich M. Taming the silylium ion for low-temperature diels-alder reactions. Angew. Chem. Int. Ed.. 2009;48(48): 9077–9079. doi: 10.1002/anie.200904520.
Spies P, Kehr G, Bergander K, Wibbeling B, Fröhlich R, Erker G. Metal-free dihydrogen activation chemistry: Structural and dynamic features of intramolecular P/B pairs. Dalton Trans.. 2009;2009(9): 1534–1541. doi: 10.1039/b815832k.
Würtz S, Lohre C, Fröhlich R, Bergander K, Glorius F. IBiox[(-)-menthyl]: A sterically demanding chiral NHC ligand. J. Am. Chem. Soc.. 2009;131(24): 8344–8345. doi: 10.1021/ja901018g.
Eweiner F, Senda S, Bergander K, Mück-Lichtenfeld C, Grimme S, Fröhlich R, Aoyama M, Kawaguchi H, Ohki Y, Matsumoto T, Kehr G, Tatsumi K, Erker G. Evidence for a rapid degenerate hetero-cope-type rearrangement in [Cp*W(S) 2S-CH2-CH=CH2]. Chemistry - An Asian Journal. 2009;4(12): 1830–1833. doi: 10.1002/asia.200900360.
Hill M, Herrmann C, Spies P, Kehr G, Bergander K, Fröhlich R, Erker G. Bifunctional Molecular Systems with Pendant Bis(pentafluorophenyl)boryl Groups: From Intramolecular CH-Activation to Heterolytic Dihydrogen Splitting. in: Hill , Herrmann , Spies , Kehr , Bergander , Fröhlich , Erker , eds. Activating Unreactive Substrates: The Role of Secondary Interactions. John Wiley & Sons; 2009. pp. 209–230. (Vol. null). doi: 10.1002/9783527625468.ch12.

2008

Lange H, Bergander K, Fröhlich R, Kehr S, Nakamura S, Shibata N, Toru T, Hoppe D. Highly enantioselective reactions of configurationally labile epimeric diamine complexes of lithiated S-benzyl thiocarbamates. Chemistry - An Asian Journal. 2008;3(1): 88–101. doi: 10.1002/asia.200700262.
Ghavtadze N, Fröhlich R, Bergander K, Würthwein E. Superelectrophilic intermediates in the synthesis of novel indenole derivatives via 1,5-cyclization reactions of 5-aryl-1-azapenta-1,4-dien-3-ones. Synthesis. 2008;2008(21): 3397–3406. doi: 10.1055/s-0028-1083188.
Becker J, Bergander K, Fröhlich R, Hoppe D. Asymmetric total synthesis and X-ray crystal structure of the cytotoxic marine diterpene (+)-vigulariol. Angew. Chem. Int. Ed.. 2008;47(9): 1654–1657. doi: 10.1002/anie.200704678.
Fehling E, Klein E, Vosmann K, Bergander K, Weber N. Linear copolymeric poly(thia-alkanedioates) by lipase-catalyzed esterification and transesterification of 3,3′-thiodipropionic acid and its dimethyl ester with α,ω-alkanediols. Biotechnology and Bioengineering. 2008;99(5): 1074–1084. doi: 10.1002/bit.21704.
Huber D, Kehr G, Bergander K, Fröhlich R, Erker G, Tanino S, Ohki Y, Tatsumi K. Heterolytic cleavage of dihydrogen by frustrated Lewis Pairs derived from α-(dimesitylphosphino)ferrocenes and B(C6F5) 3. Organometallics. 2008;27(20): 5279–5284. doi: 10.1021/om800339c.

2007

Brühl L, Matthäus B, Fehling E, Wiege B, Lehmann B, Luftmann H, Bergander K, Quiroga K, Scheipers A, Frank O, Hofmann T. Identification of bitter off-taste compounds in the stored cold pressed linseed oil. J Agric Food Chem. 2007;55(19): 7864–7868. doi: 10.1021/jf071136k.
Sonawane R, Mück-Lichtenfeld C, Fröhlich R, Bergander K, Hoppe D. Highly diastereoselective lithiation and substitution of an (S)-prolinyl thiocarbamate via sterically homogeneous lithio(thiocarbamate): Synthesis of enantiomerically pure prolinethiols. Chem. Eur. J.. 2007;13(22): 6419–6429. doi: 10.1002/chem.200601853.
Spies P, Erker G, Kehr G, Bergander K, Fröhlich R, Grimme S, Stephan D. Rapid intramolecular heterolytic dihydrogen activation by a four-membered heterocyclic phosphane-borane adduct. Chem. Commun.. 2007;null(47): 5072–5074. doi: 10.1039/b710475h.
Lyaskovskyy V, Bergander K, Fröhlich R, Würthwein E. Novel synthesis of azepine derivatives via copper-mediated cyclization of 2-Aza-hepta-2,4-dien-6-ynyl anions. Intramolecular addition of organocopper centers to the C-C triple bond. Org Lett. 2007;9(6): 1049–1052. doi: 10.1021/ol063081y.
Chen Y, Redlich H, Bergander K, Fröhlich R. D-Glucosamine trimethylene dithioacetal derivatives: Formation of six- and seven-membered ring amino carbasugars. Synthesis of (-)-calystegine B <inf>3</inf>. Org Biomol Chem. 2007;5(20): 3330–3339. doi: 10.1039/b711112f.

2006

Ullrich M, Mitzel N, Bergander K, Fröhlich R. Organoaluminium complexes with sterically demanding oximato ligands: Does a bulky and rigid ligand backbone change the aggregation motif? Dalton Trans.. 2006;2006(5): 714–721. doi: 10.1039/b509511e.
Malkowsky I, Rommel C, Wedeking K, Fröhlich R, Bergander K, Nieger M, Quaiser C, Griesbach U, Pütter H, Waldvogel S. Facile and highly diastereoselective formation of a novel pentacyclic scaffold by direct anodic oxidation of 2,4-dimethylphenol. Eur. J. Org. Chem.. 2006;2006(1): 241–245. doi: 10.1002/ejoc.200500517.
Paradies J, Greger I, Kehr G, Erker G, Bergander K, Fröhlich R. Formation of an organometallic ladderane derivative by dynamic topochemical reaction control. Angew. Chem. Int. Ed.. 2006;45(45): 7630–7633. doi: 10.1002/anie.200601592.
Weber N, Bergander K, Fehling E, Klein E, Vosmann K, Mukherjee K. Copolymeric polythioesters by lipase-catalyzed thioesterification and transthioesterification of α,ω-alkanedithiols. Applied Microbiology and Biotechnology. 2006;70(3): 290–297. doi: 10.1007/s00253-005-027-5.

2005

Tian X, Woski M, Lustig C, Pape T, Fröhlich R, Van LeD, Bergander K, Mitzel N. N,N-diisopropylaminomethyllithium: Synthesis, oxidative degradation, and organoaluminum and -gallium derivatives. Organometallics. 2005;24(1): 82–88. doi: 10.1021/om049631i.
Shendage D, Fröhlich R, Bergander K, Haufe G. Asymmetric synthesis of γ-fluorinated α-amino acid derivatives. Eur. J. Org. Chem.. 2005;2005(4): 719–727. doi: 10.1002/ejoc.200400665.
Ullrich M, Mitzel N, Bergander K, Fröhlich R. Organoaluminium complexes with sterically demanding oximato ligands:: does a bulky and rigid ligand backbone change the aggregation motif? Dalton Trans.. 2005;2006(5) doi: 10.1039/b509511e.

2004

Hannig F, Fröhlich R, Bergander K, Erker G, Petersen J. Structural and spectroscopic evidence for intramolecular agostic M⋯H-C and dative Zr←-F-C(ortho) interactions in the zwitterionic metal complexes [(C 5H 4)SiMe 2(N-t-Bu)]M(+)(μ-C 4H 6)B(-)(C 6F 5) 3, M = Ti, Zr. Organometallics. 2004;23(19): 4495–4502. doi: 10.1021/om040057k.
Seidel W, Ibarra AM, Schaffrath M, Bergander K. A neutral tungsten-η2-alkyne-1-thio ligand forming a homoleptic Werner type complex with Cu(I). Dalton Trans.. 2004;null(14): 2053–2054. doi: 10.1039/b404821k.

2003

Döring S, Kotov V, Erker G, Kehr G, Bergander K, Kataeva O, Fröhlich R. Synthesis and dynamic features of (chloro)zirconocene cations stabilised by pendant (diarylphosphanyl)alkyl and (dimethylamino)alkyl substituents at their cyclopentadienyl ring systems. European Journal of Inorganic Chemistry. 2003;2003(8): 1599–1607. doi: 10.1002/ejic.200390210.
Vagedes D, Erker G, Kehr G, Bergander K, Kataeva O, Fröhlich R, Grimme S, Mück-Lichtenfeld C. Tris(pentafluorophenyl)borane adducts of substituted imidazoles: Conformational features and chemical behavior upon deprotonation. Dalton Trans.. 2003;2003(7): 1337–1344. doi: 10.1039/b210030b.
Kramer B, Fröhlich R, Bergander K, Waldvogel S. The O-substitution pattern of the MoCl5-mediated oxidative aryl-aryl coupling reaction. Synthesis. 2003;34(15): 91–96. doi: 10.1002/chin.200315104.
Schopohl M, Bergander K, Kataeva O, Fröhlich R, Waldvogel S. Synthesis and Characterization of Enantiomerically Pure Menthylamines and Their Isocyanates. Synthesis. 2003;null(17): 2689–2694. doi: 10.1002/chin.200415177.
Chankvetadze B, Lomsadze K, Burjanadze N, Breitkreutz J, Pintore G, Chessa M, Bergander K, Blaschke G. Comparative enantioseparations with native β-cyclodextrin, randomly acetylated β-cyclodextrin and heptakis-(2,3-di-O-acetyl β-cyclodextrin in capillary electrophoresis. Electrophoresis. 2003;24(6): 1083–1091. doi: 10.1002/elps.200390126.

2002

Chankvetadze B, Burjanadze N, Breitkreutz J, Bergander K, Bergenthal D, Kataeva O, Fröhlich R, Luftmann H, Blaschke G. Mechanistic study on the opposite migration order of the enantiomers of ketamine with α- and β-cyclodextrin in capillary electrophoresis. Journal of Separation Science. 2002;25(15-17): 1155–1166.
Chankvetadze B, Burjanadze N, Bergander K, Blaschke G. Enantioseparation of glutethimide and its 5-OH-metabolite in capillary electrophoresis and study of selector-selectand interactions using one-dimensional rotating frame nuclear Overhauser and exchange spectroscopy. Electrophoresis. 2002;23(12): 1906–1911.
Dreier T, Hannig F, Erker G, Bergander K, Fröhlich R. Conformational features of a furyl-substituted bis(tetrahydroindenyl)zirconium dichloride system. Journal of Physical Organic Chemistry. 2002;15(8): 582–589. doi: 10.1002/poc.524.
Chankvetadze B, Burjanadze N, Maynard D, Bergander K, Bergenthal D, Blaschke G. Comparative enantioseparations with native β-cyclodextrin and heptakis-(2-0-methyl-3,6-di-O-sulfo)-β-cyclodextrin in capillary electrophoresis. Electrophoresis. 2002;23(17): 3027–3034.
Tamm M, Baum K, Lügger T, Fröhlich R, Bergander K. Chelate complexes of functionalized cycloheptatrienyl ligands: 17- And 18-Electron molybdenum complexes with linked cycloheptatrienyl-phosphane ligands and their use in transition metal catalysis. European Journal of Inorganic Chemistry. 2002;null(4): 918–928. doi: 10.1002/1099-0682(200203)2002:4%3C918::AID-EJIC918%3E3.0.CO;2-E.

2001

Von WC, Luftmann H, Bergander K, Meinhardt F. Phytotoxic chaetoglobosins are produced by the plant pathogen Calonectria morganii (anamorph Cylindrocladium scoparium). Journal of General and Applied Microbiology. 2001;47(1): 33–38. doi: 10.2323/jgam.47.33.
Dreir T, Bergander K, Wegelius E, Fröhlich R, Erker G. Structural and dynamic features of bis[2-(2-furyl)indenyl]zirconium derivatives. Organometallics. 2001;20(24): 5067–5075. doi: 10.1021/om0104518.
Göttker-Schnetmann I, Aumann R, Bergander K. Organic synthesis via transition metal complexes. 112. Reactivity enhancement of group VI Fischer carbene complexes by copper and rhodium catalysts: Experimental proof of a carbene rhodium complex as an intermediate. Organometallics. 2001;20(16): 3574–3581. doi: 10.1021/om0103207.
Chankvetadze B, Lomsadze K, Bergenthal D, Breitkreutz J, Bergander K, Blaschke G. Mechanistic study on the opposite migration order of clenbuterol enantiomers in capillary electrophoresis with β-cyclodextrin and single-isomer heptakis(2,3-diacetyl-6-sulfo)-β-cyclodextrin. Electrophoresis. 2001;22(15): 3178–3184.
Lütke-Eversloh T, Bergander K, Luftmann H, Steinbüchel A. Identification of a new class of biopolymer: Bacterial synthesis of a sulfur-containing polymer with thioester linkages. Microbiology. 2001;147(1): 11–19. doi: 10.1099/00221287-147-1-11.
Lütke-Eversloh T, Bergander K, Luftmann H, Steinbüchel A. Biosynthesis of poly(3-hydroxybutyrate-co-3-mercaptobutyrate) as a sulfur analogue to poly(3-hydroxybutyrate) (PHB). Biomacromolecules. 2001;2(3): 1061–1065. doi: 10.1021/bm015564p.

2000

Chankvetadze B, Fillet M, Burjanadze N, Bergenthal D, Bergander K, Luftmann H, Crommen J, Blaschke G. Enantioseparation of aminoglutethimide with cyclodextrins incapillary electrophoresis and studies of selector-selectand interactions using NMR spectroscopy and electrospray ionization mass spectrometry. Enantiomer. 2000;5(3-4): 313–322.
Chankvetadze B, Burjanadze N, Pintore G, Bergenthal D, Bergander K, Mühlenbrock C, Breitkreuz J, Blaschke G. Separation of brompheniramine enantiomers by capillary electrophoresis and study of chiral recognition mechanisms of cyclodextrins using NMR-spectroscopy, UV spectrometry, electrospray ionization mass spectrometry and X-ray crystallography. Journal of Chromatography A. 2000;875(null): 471–484. doi: 10.1016/S0021-9673(00)00153-9.
Chankvetadze B, Pintore G, Burjanadze N, Bergenthal D, Bergander K, Breitkreuz J, Mühlenbrock C, Blaschke G. Mechanistic study of opposite migration order of dimethindene enantiomers in capillary electrophoresis in the presence of native β-cyclodextrin and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin. Journal of Chromatography A. 2000;875(1-2): 455–469. doi: 10.1016/S0021-9673(00)00146-1.
Dahlmann M, Erker G, Bergander K. Experimental characterization of the alkene-addition/-insertion energy profile at homogeneous group 4 metal ziegler-type catalysts. J. Am. Chem. Soc.. 2000;122(33): 7986–7998. doi: 10.1021/ja0005338.
Tamm M, Dressel B, Fröhlich R, Bergander K. Complexes containing the heptadentate cogwheel C7Me7: Synthesis and structural characterization of heptamethylcycloheptatrienyl (CHT*) tungsten complexes. Chem. Commun.. 2000;null(18): 1731–1732.
Fauré J, Erker G, Fröhlich R, Bergander K. 2-[ethyl-(2-methallyl)amino]indenyllithium: Structural characterization of a base-free oligomeric supersandwich indenyllithium compound. European Journal of Inorganic Chemistry. 2000;2000(12): 2603–2606.

1999

Strauch H, Bergander K, Kehr G, Fröhlich R, Erker G. Group 5 metal complexes with cyclooctatetraene: Formation and characterization of (butadiene)(cyclooctatetraene)(cyclopentadienyl)tantalum systems. European Journal of Inorganic Chemistry. 1999;null(9): 1461–1466.
Wonnemann J, Oberhoff M, Erker G, Fröhlich R, Bergander K. Group-4 metallocene cation complexes of oligopeptides: Reaction of [Cp2ZrCH3(THF)+BPh4 -] with Boc-protected di- and tripepride esters. European Journal of Inorganic Chemistry. 1999;1999(7): 1111–1120.
Gigante B, Santos C, Fonseca T, Curto M, Luftmann H, Bergander K, Berberan-Santos M. Diels-Alder adducts of C-60 and resin acid derivatives: Synthesis, electrochemical and fluorescence properties. Tetrahedron. 1999;55(19): 6175–6182. doi: 10.1016/S0040-4020(99)00262-8.

1998

Temme O, Dickner T, Laschat S, Fröhlich R, Kotila S, Bergander K. Synthesis of Azapolycyclic Systems Based on the Indolizino[3,4-b]quinoline Skeleton - A Diastereoselective Entry to Potential Oligodentate Artificial Receptors. Eur. J. Org. Chem.. 1998;29(29): 651–659. doi: 10.1002/chin.199829176.
Döring S, Erker G, Fröhlich R, Meyer O, Bergander K. Reaction of the lewis acid tris(pentafluorophenyl)borane with a phosphorus ylide: Competition between adduct formation and electrophilic and nucleophilic aromatic substitution pathways. Organometallics. 1998;17(11): 2183–2187. doi: 10.1021/om9709953.
Jacobsen H, Berke H, Brackemeyer T, Eisenblätter T, Erker G, Fröhlich R, Meyer O, Bergander K. Comparison of Characteristic Structural Features among the Triade of Tris(cyclopentadienyl)(Group-4 Metal) Complex Cations: A Combined Theoretical and Experimental Study. Helvetica Chimica Acta. 1998;81(9): 1692–1709. doi: 10.1002/(SICI)1522-2675(19980909)81:9<1692::AID-HLCA1692>3.0.CO;2-X.
Karl J, Dahlmann M, Erker G, Bergander K. Arriving at an experimental estimate of the intrinsic activation barrier of olefin insertion into the Zr-C bond of an active metallocene ziegler catalyst. J. Am. Chem. Soc.. 1998;120(23): 5643–5652. doi: 10.1021/ja9743809.

1997

Monsees A, Laschat S, Hotfilder M, Wolff J, Bergander K, Terfloth L, Fröhlich R. Synthesis and in vitro cytotoxic activity of novel hexahydro-2H-pyrido[1,2-b]isoquinolines against human brain tumor cell lines. Bioorganic and Medicinal Chemistry Letters. 1997;7(23): 2945–2950. doi: 10.1016/S0960-894X(97)10114-7.

1994

Bergander K, He R, Chandrakumar N, Eppers O, Günther H. NMR spectroscopy of organolithium compounds, Part XVI. The aggregation behavior of butyllithium, phenyllithium, and lithium diisopropylamide in dimethoxy- and diethoxymethane. Tetrahedron. 1994;50(20): 5861–5868. doi: 10.1016/S0040-4020(01)90441-7.

1993

Mons H, Bergander K, Günther H. Selective 2H, 2H 1D‐TOCSY NMR spectroscopy for signal assignment in perdeuteriated compounds. Magnetic Resonance in Chemistry. 1993;31(5): 509–511. doi: 10.1002/mrc.1260310517.
Mons H, Bergander K, Günther H. The 2H,2H‐INADEQUATE experiment: Detection of One‐ and Two‐Spin Double Quantum Coherences. Helvetica Chimica Acta. 1993;76(3): 1216–1218. doi: 10.1002/hlca.19930760308.

Coworkers of the NMR department

Dr. Klaus Bergander

Articles

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1994

1993

Ingo Gutowski

Timon Reckmann

Corinna Heusel

Karin Voß