Výsledky vyhledávání - "Jürgen Sprinz"

Preparation of chiral phosphorus, sulfur and selenium containing 2-aryloxazolines

Autor: Thomas Langer, Johannes C. de Jong, Heico Schell, Heiko Rieck, Matthias Kiefer, Günter Helmchen, Peter Sennhenn, Markus Peer, Henning Steinhagen, Jürgen Sprinz, Burkhard Wiese

Publikováno v: Tetrahedron. 52:7547-7583

A series of enantiomerically pure 2-[2-(diarylphosphino)aryl]-oxazolines was prepared from commercially available or synthetic amino alcohols. For oxazoline formation three procedures were employed: ( i ) one pot condensation with a 2-halobenzoic aci

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::93309cbda8fac7006162196ed17c17a1
https://doi.org/10.1016/0040-4020(96)00267-0

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Catalysis of allylic substitutions by Pd complexes of oxazolines containing an additional P, S, or Se Center. X-ray crystal structures and solution structures of chiral π-allyl palladium complexes of phosphinoaryloxazolines

Autor: Gottfried Huttner, Michael Reggelin, Matthias Kiefer, Olaf Walter, Günter Helmchen, Laszlo Zsolnai, Jürgen Sprinz

Publikováno v: Tetrahedron Letters. 35:1523-1526

Allylic alkylations with Pd complexes of chiral oxazolines with an additional donor P, S, or Se center are reported. Crystal and solution structures of palladium π-allyl complexes of phosphinoaryloxazolines were determined by X-ray crystallography a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d14da1864ef6720e7fb76faca3185919
https://doi.org/10.1016/s0040-4039(00)76748-7

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Phosphinoaryl- and phosphinoalkyloxazolines as new chiral ligands for enantioselective catalysis: Very high enantioselectivity in palladium catalyzed allylic substitutions

Autor: Jürgen Sprinz, Günter Helmchen

Publikováno v: Tetrahedron Letters. 34:1769-1772

Chiral phosphinoaryl- and phosphinoalkyloxazolines, a new class of chelate ligands, were prepared via convenient routes. Palladium complexes of the new ligands have proved to be highly effective catalysts for allylic substitution reactions. Enantiose

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dca3af7642eb281a4a73e1ded731b4be
https://doi.org/10.1016/s0040-4039(00)60774-8

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ChemInform Abstract: Phosphinoaryl- and Phosphinoalkyloxazolines as New Chiral Ligands for Enantioselective Catalysis: Very High Enantioselectivity in Palladium- Catalyzed Allylic Substitutions

Autor: Günter Helmchen, Jürgen Sprinz

Publikováno v: ChemInform. 24

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d35dc46563db9288500da3f04b0f91c7
https://doi.org/10.1002/chin.199330067

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ChemInform Abstract: Catalysis of Allylic Substitutions by Pd Complexes of Oxazolines Containing an Additional P, S, or Se Center. X-Ray Crystal Structures and Solution Structures of Chiral π-Allyl Palladium Complexes of Phosphinoaryloxazolines

Autor: Michael Reggelin, Jürgen Sprinz, Olaf Walter, Gottfried Huttner, Laszlo Zsolnai, Matthias Kiefer, Günter Helmchen

Publikováno v: ChemInform. 25

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ddbccea7570d2e0ebd674b3b6a74e3b
https://doi.org/10.1002/chin.199430036

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ChemInform Abstract: Preparation of Chiral Phosphorus, Sulfur and Selenium Containing 2- Aryloxazolines

Autor: Thomas Langer, Jürgen Sprinz, H. Schell, J. C. De Jong, M. Peer, Heiko Rieck, Matthias Kiefer, Günter Helmchen, Henning Steinhagen, Burkhard Wiese, Peter Sennhenn

Publikováno v: ChemInform. 27

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::851429584a8b5472843109c39a02269e
https://doi.org/10.1002/chin.199638142

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