Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Marek Zaidlewicz"'
Publikováno v:
ARKIVOC, Vol 2004, Iss 3, Pp 11-21 (2003)
Externí odkaz:
https://doaj.org/article/595ad2c79e154fc4aa1bdbfaa29987d5
Publikováno v:
Tetrahedron: Asymmetry. 23:716-721
The reduction of representative alkyl aryl (E)-ketoxime O-benzyl ethers with borane catalyzed by terpene oxazaborolidines, derived from (1R)-nopinone and (1R)-camphor, gave the corresponding amines with 82–99% ee. Oxazaborolidines derived from (1S)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e8fd2f2c6e81caab313e411943c5ad3
https://doi.org/10.1016/j.tetasy.2012.05.008
https://doi.org/10.1016/j.tetasy.2012.05.008
Publikováno v:
Journal of Fluorine Chemistry. 131:1289-1296
The reactions of α-imino ketones, derived from arylglyoxals, with (trifluoromethyl)trimethylsilane (CF 3 SiMe 3 ) in DME solution, in the presence of catalytic amount of CsF, at room temperature, yield O-silylated β-imino alcohols in the chemoselec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54e664d1e6664d31c7abd92342939c7d
https://doi.org/10.1016/j.jfluchem.2010.07.012
https://doi.org/10.1016/j.jfluchem.2010.07.012
Autor:
Katarzyna Pietrasiak, Agnieszka Tafelska-Kaczmarek, Anna Kozakiewicz, Andrzej Prewysz-Kwinto, Krzysztof Skowerski, Marek Zaidlewicz
Publikováno v:
Tetrahedron: Asymmetry. 21:2244-2248
The asymmetric transfer hydrogenation of representative aryl and benzofuranyl 2-tert-butylaminoethanones with formic acid–triethylamine, catalyzed by RhCl[(R,R)-TsDPEN](C5Me5), produced the corresponding β-tert-butylamino alcohols in 97–99% ee.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d1ee48bd0dd8bee0f207015911e8519
https://doi.org/10.1016/j.tetasy.2010.07.004
https://doi.org/10.1016/j.tetasy.2010.07.004
Publikováno v:
Tetrahedron: Asymmetry. 20:1138-1143
Transfer hydrogenation of representative aryl and heteroaryl dialkylaminomethyl ketones with formic acid–triethylamine, catalyzed by RuCl[(R,R)-TsDPEN](η-p-cymene), produces the corresponding β-dialkylamino alcohols, 97–99% ee, in 50–73% yiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a296acc248163e7f9d01a18f3e3cd4a5
https://doi.org/10.1016/j.tetasy.2009.03.014
https://doi.org/10.1016/j.tetasy.2009.03.014
Publikováno v:
Tetrahedron: Asymmetry. 19:956-963
The asymmetric synthesis of two 5-lipoxygenase inhibitors ( R )- N -1-(benzofuran-2-yl)ethyl- N -hydroxyurea, 99% ee, and ( R )- N -1-(benzo[ b ]thiophen-2-yl)ethyl- N -hydroxyurea, 95% ee, is described. The enantioselective reduction of 1-(benzofura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b379976c9ed203fc73557dd48dc6d4b0
https://doi.org/10.1016/j.tetasy.2008.03.026
https://doi.org/10.1016/j.tetasy.2008.03.026
Autor:
Marek Zaidlewicz, Krzysztof Z. Łączkowski, Pakulski Marcin, Marek P. Krzemiński, Parasuraman Jaisankar
Publikováno v:
Tetrahedron: Asymmetry. 19:788-795
Asymmetric synthesis of ( S )- N -(1-arylethyl)- N -hydroxyureas, ( S )- N -(6-methoxy)- and ( S )- N -(6-benzyloxy-2,3-dihydrobenzofuran-3-yl)- N -hydroxyurea— lipoxygenase inhibitor, is described. Three approaches to the formation of the N -hydro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d9e7466112820acecaba271051feb55
https://doi.org/10.1016/j.tetasy.2008.03.008
https://doi.org/10.1016/j.tetasy.2008.03.008
Publikováno v:
Synlett. 2006:1695-1698
A general and mostly highly stereoselective method for effective synthesis of 1-boryl-3-(silyl)propenes via one-step catalytic processes, i.e. silylative coupling of vinylsilanes with allyl boronates, borylative coupling of vinyl boronates with allyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ffad00859d03b26c625b267ccf94c39
https://doi.org/10.1055/s-2006-944212
https://doi.org/10.1055/s-2006-944212
Publikováno v:
Tetrahedron: Asymmetry. 16:3205-3210
Enantioselective reduction of representative 2-(bromoacetyl)- and 2-(chloroacetyl)benzofurans with (−)-B-chlorodiisopinocampheylborane and by transfer hydrogenation with formic acid/triethylamine in the presence of RhCl[R,R-TsDPEN](C5Me5) is descri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2a9c8c8dd118c22a47beb3bc12d106d
https://doi.org/10.1016/j.tetasy.2005.08.012
https://doi.org/10.1016/j.tetasy.2005.08.012
Publikováno v:
Tetrahedron Letters. 45:6615-6618
An efficient silylative coupling of trisubstituted vinylsilanes with dialkoxy(vinyl)boranes is described. Under optimum conditions the reaction offers a selective route to 1-(silyl)-1-(boryl)ethenes, which are potentially attractive intermediates in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c1f6d27fa0c74f1b1d71e7bb055583a
https://doi.org/10.1016/j.tetlet.2004.07.018
https://doi.org/10.1016/j.tetlet.2004.07.018