[EN] NEW CHIRAL STATIONARY PHASES FOR CHROMATOGRAPHY BASED ON AROMATIC ALLYL AMINES<br/>[FR] NOUVELLES PHASES STATIONNAIRES CHIRALES POUR CHROMATOGRAPHIE À BASE D'AMINES D'ALLYLE AROMATIQUES
申请人:RUDJER BOSKOVIC INST
公开号:WO2009109792A1
公开(公告)日:2009-09-11
New chiral stationary phases (CSPs) based on chiral selectors covalently bound on a solid support were prepared. Chiral selectors were obtained from enantiomerically pure aromatic amines and 3,5-dinitrobenzoic acid and then linked to the support surface through the allylic double bond. Such obtained materials allow enantioseparation of racemates or enantiomerically enriched compounds. These chiral stationary phases can be used as fillings in chromatographic columns for enantiomer separation of naproxen type drugs and other similar non-steroidal anti-inflammatory drugs (NSAID) by means of high performance liquid chromatography on both the analytical and preparative scale.
Chiral self-discrimination of the enantiomers of α-phenylethylamine derivatives in proton NMR
作者:Shao-Hua Huang、Zheng-Wu Bai、Ji-Wen Feng
DOI:10.1002/mrc.2406
日期:2009.5
of chiral analytes, the urea and amidederivatives of α‐phenylethylamine, were prepared. The effect of inter‐molecular hydrogen‐bonding interaction on self‐discrimination of the enantiomers of analytes has been investigated using high‐resolution 1H NMR. It was found that the ureaderivatives with double‐hydrogen‐bonding interaction exhibit not only the stronger hydrogen‐bonding interaction but also better
Highly Efficient Aminocarbonylation of Iodoarenes at Atmospheric Pressure Catalyzed by a Robust Acenaphthoimidazolyidene Allylic Palladium Complex
作者:Weiwei Fang、Qinyue Deng、Mizhi Xu、Tao Tu
DOI:10.1021/ol401550h
日期:2013.7.19
A robust allylic palladium-NHC complex was developed and exhibited extremely high catalytic activity toward aminocarbonylation of various (hetero)aryl iodides under atmospheric carbon monoxide pressure, in which a broad range of secondary and primary amines were well tolerated. In addition, the concise synthesis of an anticancer drug tamibarotene was accomplished even in a gram scale, further highlighting the practical applicability of the protocol.
Boronic acid–DMAPO cooperative catalysis for dehydrative condensation between carboxylic acids and amines
作者:Kazuaki Ishihara、Yanhui Lu
DOI:10.1039/c5sc03761a
日期:——
Arylboronic acid and 4-(N,N-dimethylamino)pyridine N-oxide (DMAPO) cooperatively catalyse the dehydrative condensation reaction between carboxylic acids and amines to give the corresponding amides under azeotropic reflux conditions. The cooperative use of...