Zobrazeno 1 - 10 of 26 pro vyhledávání: '"Bianca Bitterlich"'
1
Iron-catalyzed hydroxylation of β-ketoesters with hydrogen peroxide as oxidant
Autor: Kristin Schröder, Matthias Beller, Dongmei Li, Man Kin Tse, Bianca Bitterlich
Publikováno v: Tetrahedron Letters. 49:5976-5979
The hydroxylation of β-ketoesters was studied using simple iron catalysts and 30 wt % hydrogen peroxide as the terminal oxidant. The highest activity and yield were achieved in the presence of iron(III) chloride. Cyclic β-ketoesters could be smooth
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b0607ee530e6b00ac4667802afb0d44
https://doi.org/10.1016/j.tetlet.2008.07.157
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2
An Improved Iron-Catalyzed Epoxidation of Aromatic and Aliphatic Olefins with Hydrogen Peroxide as Oxidant
Autor: Kristin Schröder, Bianca Bitterlich, Matthias Beller, Man Kin Tse
Publikováno v: European Journal of Organic Chemistry. 2008:4867-4870
A convenient and practical method for the iron-catalyzed epoxidation of aromatic and aliphatic olefins is described. The iron catalyst system is generated in situ from iron trichloride hexahydrate, pyridine-2,6-dicarboxylic acid (H2pydic), and benzyl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6978b11256d887d604a1ae2b2e6d6cbc
https://doi.org/10.1002/ejoc.200800712
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5
Novel biomimetic iron-catalysts for environmentally benign epoxidations of olefins
Autor: Kristin Schroeder, Man Kin Tse, Matthias Beller, Feyissa Gadissa Gelalcha, Angelika Brueckner, Xiaofeng Tong, Bianca Bitterlich
Publikováno v: Tetrahedron Letters. 48:6339-6342
A new selective and easily manageable epoxidation method is presented using an inexpensive and efficient FeCl3·6H2O and imidazole derivatives as catalysts. Aqueous hydrogen peroxide as an environmentally benign oxidant is utilized. This novel Fe/imi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f7fc3ad132ebf003042a6aefa0f8473
https://doi.org/10.1016/j.tetlet.2007.07.006
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6
Synthetic, spectral and catalytic activity studies of ruthenium bipyridine and terpyridine complexes: Implications in the mechanism of the ruthenium(pyridine-2,6-bisoxazoline)(pyridine-2,6-dicarboxylate)-catalyzed asymmetric epoxidation of olefins utilizing H2O2
Autor: Man Kin Tse, Feyissa Gadissa Gelalcha, Matthias Beller, Haijun Jiao, Gopinathan Anilkumar, Bianca Bitterlich
Publikováno v: Journal of Organometallic Chemistry. 691:4419-4433
Various Ru(L 1 )(L 2 ) ( 1 ) complexes (L 1 = 2,2′-bipyridines, 2,2′:6′,2″-terpyridines, 6-(4 S )-4-phenyl-4,5-dihydro-oxazol-2-yl-2,2′-bipyridinyl or 2,2′-bipyridinyl-6-carboxylate; L 2 = pyridine-2,6-dicarboxylate, pyridine-2-carboxylat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1ab66a784fbf34446292158b5068a38e
https://doi.org/10.1016/j.jorganchem.2005.12.069
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7
Synthesis of a novel class of chiral N,N,N-tridentate pyridinebisimidazoline ligands and their application in Ru-catalyzed asymmetric epoxidations
Autor: Man Kin Tse, Santosh Bhor, Gopinathan Anilkumar, Bianca Bitterlich, Matthias Beller, Markus Klawonn
Publikováno v: Tetrahedron: Asymmetry. 16:3536-3561
A new class of easily tunable N,N,N-pyridinebisimidazoline (pybim) ligands have been synthesized. The synthesis and tunability of these chiral tridentate ligands are much easier and flexible compared to the popular pyboxes, making the former a suitab
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd60c06ae2ca3510e53b0a1dafbfb5b4
https://doi.org/10.1016/j.tetasy.2005.08.060
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8
An efficient biomimetic Fe-catalyzed epoxidation of olefins using hydrogen peroxide
Autor: Bianca Bitterlich, Man Kin Tse, Matthias Beller, Feyissa Gadissa Gelalcha, Gopinathan Anilkumar
Publikováno v: Chem. Commun.. :289-291
A new, environmentally benign and practical epoxidation method was developed using inexpensive and efficient Fe catalysts. FeCl3·6H2O in combination with commercially available pyridine-2,6-dicarboxylic acid and amines showed excellent reactivity an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a2408eaba666ba00016a6401266482c
https://doi.org/10.1039/b612048b
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10
Fe-Catalyzed Oxidation Reactions of Olefins, Alkanes, and Alcohols: Involvement of Oxo- and Peroxo Complexes
Autor: Kristin Schröder, Matthias Beller, Kathrin Junge, Bianca Bitterlich
Publikováno v: Iron Catalysis ISBN: 9783642146695
In this review, recent developments of iron-catalyzed oxidations of olefins (epoxidation), alkanes, arenes, and alcohols are summarized. Special focus is given on the ligand systems and the catalytic performance of the iron complexes. In addition, th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b726976ba1c2e5298ffcd233e57a3da
https://doi.org/10.1007/978-3-642-14670-1_3
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