Výsledky vyhledávání - "Santosh Bhor"

Synthesis of a Tetrasubstituted Tetrahydronaphthalene Scaffold for α-Helix Mimicry via a MgBr2-Catalyzed Friedel–Crafts Epoxide Cycloalkylation

Autor: Santosh Bhor, Devan Naduthambi, Michael B. Elbaum, Neal J. Zondlo

Publikováno v: Organic Letters. 15:4892-4895

α-Helices are ubiquitous protein recognition elements that bind diverse biomolecular targets. The synthesis of a small molecule scaffold to present the side chains of an α-helix is described. The 1,3,5,7-tetrasubstituted 1,2,3,4-tetrahydronaphthale

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::800896794dfc60be9c0fb30894875863
https://doi.org/10.1021/ol402334j

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Ruthenium-Catalyzed Asymmetric Epoxidation of Olefins Using H2O2, Part II: Catalytic Activities and Mechanism

Autor: Matthias Beller, Markus Klawonn, Christian Döbler, Wolfgang Mägerlein, Anke Spannenberg, Haijun Jiao, Man Kin Tse, Santosh Bhor, Gopinathan Anilkumar, Herbert Hugl

Publikováno v: Chemistry - A European Journal. 12:1875-1888

Asymmetric epoxidation of olefins with 30 % H2O2 in the presence of [Ru(pybox)(pydic)] 1 and [Ru(pyboxazine)(pydic)] 2 has been studied in detail (pybox = pyridine-2,6-bisoxazoline, pyboxazine = pyridine-2,6-bisoxazine, pydic = 2,6-pyridinedicarboxyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd7adc6cca160b46edf6453ec8289fc1
https://doi.org/10.1002/chem.200501262

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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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A convenient ruthenium-catalyzed alkene epoxidation with hydrogen peroxide as oxidant

Autor: Markus Klawonn, Santosh Bhor, Christian Döbler, Matthias Beller, Man Kin Tse

Publikováno v: Journal of Molecular Catalysis A: Chemical. 218:13-19

A general procedure for the epoxidation of various olefins using hydrogen peroxide as the oxidant in the presence of ruthenium trichloride has been developed. Aromatic and aliphatic olefins gave the corresponding epoxides at room temperature in good

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ce37b8e2a634c508d3a336269c930dc6
https://doi.org/10.1016/j.molcata.2004.03.023

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Ruthenium-Catalyzed Asymmetric Alkene Epoxidation withtert-Butyl Hydroperoxide as Oxidant

Autor: Matthias Beller, Santosh Bhor, Man Kin Tse, Markus Klawonn, Wolfgang Mägerlein, Christian Döbler

Publikováno v: Advanced Synthesis & Catalysis. 346:263-267

A ruthenium-catalyzed asymmetric epoxidation of various olefins using tert-butyl hydroperoxide (TBHP) as the oxidant is reported. By applying ruthenium(pyridinebisoxazoline)-(pyridinedicarboxylate) complexes 1 [Ru(pybox)(pydic), 1] as catalysts, arom

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62869421a30fa108a151fa9c22499597
https://doi.org/10.1002/adsc.200303142

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A Simple and Convenient Method for Epoxidation of Olefins without Metal Catalysts

Autor: Markus Klawonn, Christine Fischer, Christian Doebler, Santosh Bhor, Gerald Mehltretter, Matthias Beller

Publikováno v: Advanced Synthesis & Catalysis. 345:389-392

An easy method for epoxidation of olefins usingbleach (sodium hypochlorite) and either a stoichiometric or catalytic amount of bromide ion has been developed. Without any transition metal catalyst a variety of non-activated olefins give epox- ides in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f951cc759a24cae8ba5ace4972f38933
https://doi.org/10.1002/adsc.200390044

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Readily Accessible, Modular, and Tuneable BINOL 3,3′-Perfluoroalkylsulfones: Highly Efficient Catalysts for Enantioselective In-Mediated Imine Allylation

Autor: Gregory R. Cook, Santosh Bhor, Yoko Takahashi, Guy C. Lloyd-Jones, Ian R. Shepperson, Robert B. Kargbo

Publikováno v: ChemInform. 38

Thia−Fries rearrangement of BINOL perfluoroalkylsulfonates affords readily derivatized novel mono- and disulfone ligands in just two steps from enantiomerically pure BINOL. These electron-demanding BINOLs have been successfully applied as catalysts

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92cf2eb0e8e02883c8839dcd3231658e
https://doi.org/10.1002/chin.200735080

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New Ruthenium Catalysts for Asymmetric Transfer Hydrogenation of Prochiral Ketones

Autor: Matthias Beller, Stephan Enthaler, Bernhard Hagemann, Man Kin Tse, Gopinathan Anilkumar, Bianca Bitterlich, Santosh Bhor, Kathrin Junge, Giulia Erre

Publikováno v: ChemInform. 38

Tridentate N,N,N-pyridinebisimidazolines have been studied as new ligands for the enantioselective transfer hydrogenation of prochiral ketones. High yields and excellent enantioselectivity up to > 99 % ee have been achieved with an in situ generated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55c00975915d29cb2cf82eb52d9ef0a4
https://doi.org/10.1002/chin.200733066

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