Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Gerd Klintschar"'
1
2,6,9-Trioxabicyclo[3.3.1]nona-3,7-dienes and 2,4,6,8-Tetraoxaadamantanes: Novel Chiral Spacer Units in Macrocyclic Polyethers
Autor: Karsten Gloe, Gert Kollenz, Ferdinand Belaj, Tamara Egger, Curt Wentrup, Gerd Klintschar, Bianca C. Wallfisch, C. Oliver Kappe, Werner Heilmayer
Publikováno v: Supramolecular Chemistry. 14:383-397
The unusual chiral heterocyclic systems, trioxabicyclo[3.3.1]nona-3,7-dienes ("bridged bisdioxines"), are incorporated as novel spacer molecules into macrocyclic polyether ring systems of various sizes (8, 9 as well as 11-15) by cyclocondensation rea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d972eac15509b63599b1524e322aa77a
https://doi.org/10.1080/1061027021000003430
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2
Synthesis, crystal structure, and characterization of two metal-quinolone compounds
Autor: Stane Zalar, Ivan Leban, Iztok Turel, Nataša Bukovec, Gerd Klintschar
Publikováno v: Journal of Inorganic Biochemistry. 66:77-82
Two novel metal-quinolone compounds have been synthesized and characterized by analytical, spectroscopic, and X-ray diffraction methods. The crystal structure of both, (erxH2) [FeCl4]Cl and (kinoH2)[CuCl4]. H2O, is presented and discussed (erxH2 = do
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06c3029ca16f197062e5a34188a633d7
https://doi.org/10.1016/s0162-0134(96)00157-2
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3
Tridecamethyl-1-phospha- and tridecamethyl-1-arsa-2,3,4,5,6,7,8-heptasilabicyclo[2.2.2]octane
Autor: Harald Siegl, Gerd Klintschar, Karl Hassler, Gerlinde M. Kollegger
Publikováno v: Journal of Organometallic Chemistry. 533:51-56
The octaheterobicyclo[2.2.2]octanes MeSi(SiMe2SiMe2)3E(E = P, As) have been prepared in high yields (up to 50%) from the alkali metal phosphide or arsenide Na 3 E K 3 E and the heptasilane MeSi(SiMe2SiMe2Cl)3 The cages were isolated by crystallizatio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0893b2eb1a0c5992a9e8ef51ef927216
https://doi.org/10.1016/s0022-328x(96)06822-2
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4
Macrocyclic diphosphine ligands in asymmetric carbon-carbon bond-forming reactions
Autor: Michael Widhalm, Petra Wimmer, Gerd Klintschar
Publikováno v: Journal of Organometallic Chemistry. 523:167-178
Seven chiral macrocyclic ligands with potential O2P2 and N2P2 coordination sites owing their chirality from the incorporation of an axial-chiral binaphthyl unit were used as chiral auxiliaries in transition metal catalyzed carbon-carbon bond-forming
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05537c10e5432d855740358c820888ca
https://doi.org/10.1016/0022-328x(96)06251-1
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5
Synthesis and Stereochemistry of Chiral Macrocycles Including a 1,2‐Bis(phenylphosphanyl)benzene Unit
Autor: Michael Widhalm, Gerd Klintschar
Publikováno v: Chemische Berichte. 127:1411-1426
The synthesis of the four 1,1′-binaphthyl-based macrocyclic bisphosphane ligands 6b–e (racemic and optically active) and their square-planar cis-P2-MCl2 complexes (M = Ni, Pd) is reported. In three cases isomers could be isolated and identified.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1478952f4305bb2700d28da715f8651
https://doi.org/10.1002/cber.19941270815
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6
Relative and absolute configurations of diastereomeric macrocyclic diphosphine ligands and their Ni(II) complexes
Autor: Gerd Klintschar, Michael Widhalm
Publikováno v: Tetrahedron: Asymmetry. 5:189-192
The 20 membered chiral diphospine ligands 5 A–C were prepared under high dilution conditions as a mixture of diastereomers. The absolute and relative configurations could be established on the basis of NMR and CD spectroscopy of the ligands and the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb63eb869752184b30e4f78e427d7871
https://doi.org/10.1016/s0957-4166(00)86169-8
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7
ChemInform Abstract: Synthesis and Stereochemistry of Chiral Macrocycles Including a 1,2- Bis(phenylphosphanyl)benzene Unit
Autor: Gerd Klintschar, Michael Widhalm
Publikováno v: ChemInform. 26
The synthesis of the four 1,1′-binaphthyl-based macrocyclic bisphosphane ligands 6b–e (racemic and optically active) and their square-planar cis-P2-MCl2 complexes (M = Ni, Pd) is reported. In three cases isomers could be isolated and identified.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44cfdccb35b02ba9ec24cadfa1caabcd
https://doi.org/10.1002/chin.199503194
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9
Thermophilic xylanase from Thermomyces lanuginosus: high-resolution X-ray structure and modeling studies
Autor: Anton Schlacher, Christoph Kratky, Karl Gruber, Marianne Hayn, Walter Steiner, Gerd Klintschar
Publikováno v: Biochemistry. 37(39)
The crystal structure of the thermostable xylanase from Thermomyces lanuginosus was determined by single-crystal X-ray diffraction. The protein crystallizes in space group P21, a = 40.96(4) A, b = 52. 57(5) A, c = 50.47 (5) A, beta = 100.43(5) degree
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a07c569754fad0a33ce803e8a3a5512
https://pubmed.ncbi.nlm.nih.gov/9753433
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