Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Walter Brieden"'
Autor:
Veronika Venetz, Walter Brieden, Andreas Tinschert, Jean-Paul Roduit, Nicholas M. Shaw, Thomas Zimmermann, Marie-Louise Hischier, Patricia De Riedmatten, Andrew Naughton, Evelyne Schmid, Karen Robins, Bertin Zimmermann, Roman NEUMüLLER, Josef Werlen
Publikováno v:
Organic Process Research & Development. 6:497-504
We isolated, characterised, and cloned an enantio-specific amidase from Klebsiella oxytoca and used it to resolve (R,S)-3,3,3-trifluoro-2-hydroxy-2-methylpropionamide, giving (R)-3,3,3-trifluoro-2-hydroxy-2-methylpropionic acid and (S)-3,3,3-trifluor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b91e8510d187f582e26572e350f3fe8b
https://doi.org/10.1021/op020025d
https://doi.org/10.1021/op020025d
Autor:
Walter Brieden, Antonio Togni, Martin Studer, Felix Spindler, Benoit Pugin, Hans-Ulrich Blaser
Publikováno v:
Topics in Catalysis. 19:3-16
The various stages from the invention of a ligand class to its technical application are described and illustrated by the case history of the Solvias Josiphos ligands. First, the prerequisites for a so-called “privileged ligand” are discussed, fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12a989a8929f0cfa7e2c198ee92908eb
https://doi.org/10.1023/a:1013832630565
https://doi.org/10.1023/a:1013832630565
Publikováno v:
Tetrahedron Letters. 34:5881-5884
The catalytic asymmetric addition of functionalized dialkylzincs to β-alkoxyaldehydes provides after a short sequence of functional group interconversions aldol products in 40–99%ee. Their stereoselective transformation to either syn- or anti-1,3-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::641fd53d695f906d4122e2d55776cd4e
https://doi.org/10.1016/s0040-4039(00)73804-4
https://doi.org/10.1016/s0040-4039(00)73804-4
Publikováno v:
ChemInform. 22
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20ea5a84c8e8db33b4cd30bc415ebd7a
https://doi.org/10.1002/chin.199147223
https://doi.org/10.1002/chin.199147223
Publikováno v:
ChemInform. 24
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::785ef8fc023be018e183046d4750e292
https://doi.org/10.1002/chin.199305089
https://doi.org/10.1002/chin.199305089
Autor:
Walter Brieden, Thomas Kellersohn
Publikováno v:
ChemInform. 24
1,2-Diphosphetane 4, the first “1,2-diphospha[4]radialene”, has been prepared in 83% yield by the reductive coupling reaction of 2,3-bis(chloroisopropylphosphanyl)butadiene 3a with lithium in THF. The X-ray crystal structure of 4 was determined,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::321272ba7f234e9a15b44502891db172
https://doi.org/10.1002/chin.199328237
https://doi.org/10.1002/chin.199328237
Autor:
Antonio Togni, Martin Studer, Felix Spindler, Walter Brieden, Benoit Pugin, Hans-Ulrich Blaser
Publikováno v:
ChemInform. 33
The various stages from the invention of a ligand class to its technical application are described and illustrated by the case history of the Solvias Josiphos ligands. First, the prerequisites for a so-called “privileged ligand” are discussed, fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::811728181744d3fe457b95f696ba366c
https://doi.org/10.1002/chin.200249260
https://doi.org/10.1002/chin.200249260
Publikováno v:
Chemische Berichte. 124:2033-2036
Polylithiumorganic Compounds, XVI. – 1,4-Disila[6]radialenes: Activation. Parameters of the Chair-Twist Inversion and Analytical Separation of the Enantiomers of the Twist Conformers Kinetic measurements of the chair-twist inversion of the 1,4-disi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac14f250589c217ce2e7ae088f9e0011
https://doi.org/10.1002/cber.19911240925
https://doi.org/10.1002/cber.19911240925
Autor:
Walter Brieden, Adalbert Maercker
Publikováno v:
Chemische Berichte. 124:933-938
The reaction of the dilithiobutadiene 1 with various dichloroorganylphosphanes in diethyl ether at -80°C leads to the formation of the novel phosphiranes 5a–e and 6a, 6c–e in up to 86% yield. A thermal isomerization of the alkenylidenephosphiran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97b221d8a05ebe2610ec15ca15d8004e
https://doi.org/10.1002/cber.19911240438
https://doi.org/10.1002/cber.19911240438
Autor:
Rudolf Dr. Fuchs, John F. McCarrity, Beat Schmidt, Walter Brieden, Hans‐Peter Mettler, Oleg Werbitzky
Publikováno v:
Asymmetric Catalysis on Industrial Scale: Challenges, Approaches and Solutions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1186bd087c3891fb46d1194c2524e2f
https://doi.org/10.1002/3527602151.ch16
https://doi.org/10.1002/3527602151.ch16
