Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Gerhard Steinbauer"'
Chiral Lactols, XIV. Stereoselective Fusion of Five-Membered Ring Lactols to the Bornane Ring System
Publikováno v:
Liebigs Annalen. 1996:1015-1021
Condensation of d-camphor (b) with diethyl oxalate and subsequent ester hydrolysis yielded camphoroxalic acid 3. endo-Fused lactone 9 was obtained by reduction of 3 with zinc followed by reduction with NaBH4 and ring closure with H2SO4. exo-Fused lac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6baaf1f25afbee7840922d4a3a607b62
https://doi.org/10.1002/jlac.199619960623
https://doi.org/10.1002/jlac.199619960623
Autor:
Gerhard Steinbauer, Laurent Lefort, Dirk Sartor, Bert Dielemans, Johannes G. de Vries, André H.M. de Vries, Jeroen A. F. Boogers, Ulfried Felfer, Martina Kotthaus
Publikováno v:
ChemInform. 42
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bd22ab0e0e6f6b8a5acab4e9ccc5e98
https://doi.org/10.1002/chin.201126237
https://doi.org/10.1002/chin.201126237
Autor:
Dirk Sartor, André H.M. de Vries, Gerhard Steinbauer, Laurent Lefort, Martina Kotthaus, Johannes G. de Vries, Bert Dielemans, Ulf Felfer, Jeroen A. F. Boogers
Publikováno v:
Asymmetric Catalysis on Industrial Scale: Challenges, Approaches, Solutions, 127-150
ISSUE=2nd;STARTPAGE=127;ENDPAGE=150;TITLE=Asymmetric Catalysis on Industrial Scale
Asymmetric Catalysis on Industrial Scale: Challenges, Approaches and Solutions, Second Edition
ISSUE=2nd;STARTPAGE=127;ENDPAGE=150;TITLE=Asymmetric Catalysis on Industrial Scale
Asymmetric Catalysis on Industrial Scale: Challenges, Approaches and Solutions, Second Edition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab596987049601b7ff3958b87ecd1a3f
https://research.rug.nl/en/publications/b2c07b80-65b2-4965-8db8-028dc7829bb8
https://research.rug.nl/en/publications/b2c07b80-65b2-4965-8db8-028dc7829bb8
Autor:
Ernst Wagner, Christian R. Noe, Max Knollmüller, Horst Völlenkle, Helmut Hermann Dipl.-Ing. Kürner, Gerhard Steinbauer, Peter Ettmayer
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 122:299-317
Enantiomerically pure 1,2-diols bearing optionallysyn oranti configurated secondary hydroxylic groups are synthesized from acetal-protected cyanohydrins. After resolution of the diastereomers the cyanohydrins are converted into α-alkoxy-ketones by G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a02b3210b1dcf93a819d5c332a8626ce
https://doi.org/10.1007/bf00810831
https://doi.org/10.1007/bf00810831
Autor:
Helmut Koberg, Christian R. Noe, Helmut Hermann Dipl.-Ing. Kürner, Gerhard Steinbauer, Peter Gärtner, Max Knollmüller
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 122:101-110
A synthesis of (+)-cis-disparlure is described starting from racemic 2-hydroxy-dodecannitrile (2), which is transformed into the O-protected enantiomerically pure cyanohydrine4. Grignardreaction followed by reduction with BH3 · (CH3)2S yields the co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::725d419cec8c74d0d2bd855c536902d0
https://doi.org/10.1007/bf00815171
https://doi.org/10.1007/bf00815171
Autor:
Laurent Lefort, Johannes G. de Vries, and André H. M. de Vries, Jeroen A. F. Boogers, Gerhard Steinbauer, Ulfried Felfer, Martina Kotthaus
Publikováno v:
Organic Process Research & Development, 11(3). AMER CHEMICAL SOC INC
An asymmetric hydrogenation process for the α-isopropyl dihydrocinnamic acid derivative 2, an intermediate for the renin inhibitor aliskiren (4), has been developed using a rhodium catalyst ligated with a chiral monodentate phosphoramidite and a non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f008ab36762c65ea824498e950a13115
https://research.rug.nl/en/publications/a954ec9a-b26a-4ced-b75c-c121870fcfe7
https://research.rug.nl/en/publications/a954ec9a-b26a-4ced-b75c-c121870fcfe7
Autor:
Jeroen A. F. Boogers, Ulfried Felfer, Martina Kotthaus, Laurent Lefort, Gerhard Steinbauer, André H. M. de Vries, Johannes G. de Vries
Publikováno v:
Organic Process Research & Development; May2007, Vol. 11 Issue 3, p585-591, 7p
Publikováno v:
Liebigs Annalen der Chemie. 1989:645-650
Eine Synthese der enantiomerenreinen α-Hydroxylactole 1a–4a wird beschrieben. Bei gleichzeitiger Anwesenheit eines Lactols und eines α-Hydroxylactols mit trans-standigen Hydroxygruppen im Reaktionsgemisch reagiert letzteres mit betrachtlicher fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cb6f17f895f4af932cc6342c3cf3ead
https://doi.org/10.1002/jlac.198919890207
https://doi.org/10.1002/jlac.198919890207
Publikováno v:
Chemische Berichte. 119:729-743
Es wird eine Regel zur Bestimmung der Absolutkonfiguration von chiralen -hydroxysubstituierten Nitrilen, Alkinen und Aldehyden des Typs 2 beschrieben, welche auf der Enantiomer-Selektivitat von Acetalisierungsreaktionen solcher Verbindungen mit einem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ccdd85d90316480874da56f4b0f7e24
https://doi.org/10.1002/cber.19861190230
https://doi.org/10.1002/cber.19861190230
Publikováno v:
Synthesis. 1986:501-505
Dedoublement optique des racemiques de phenyl-1 alcanols-1 a l'aide de (perhydro trimethyl-8,9,9) methano-5,8 benzofurannol-2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8818cff25482ee908515b6ba561a53b7
https://doi.org/10.1055/s-1986-31690
https://doi.org/10.1055/s-1986-31690