【摘 要】
:
In recent years, with the rapid development of supramolecular chemistry, small molecule catalysis and supramolecular catalysis based on the principle of molecular recognition and self-assembly have be
【机 构】
:
Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface
论文部分内容阅读
In recent years, with the rapid development of supramolecular chemistry, small molecule catalysis and supramolecular catalysis based on the principle of molecular recognition and self-assembly have become highly topical and attracted great interests, such as the direct asymmetric Aldol reaction catalyzed by proline derivatives.However, most of these catalytic reactions still suffer large loading catalysts, hard recycling of catalysts and usage of organic acid.
其他文献
The Hetero-Diels-Alder (HDA) reaction provides a powerful tool to construct aza, oza-heterocycles, in which Danishefskys diene was demonstrated to be the most efficient diene.1 Based on our groups eff
As we know, the carboxylic acid proton in amino acid plays a critical role in enhancing the reactivity and stereoselectivity of catalyst.[1] Accordingly, increasing the acidity of amino acid based cat
Ferrocenes, as well as other planar chiral molecules have recently attracted significant attention in the field of both synthetic chemistry, material science and bioorganometallic chemistry.Ferrocene
The indole framework represents one of the most important structural units frequently found in natural products, pharmaceuticals, and other synthetics.1 Among the numerous indole derivatives, polycycl
Quinoxalines are an important class of nitrogen-containing heterocyclesthat possess a broad spectrum of physiological and biological activities.1 Although a number of methods are available for the syn
A novel chiral biphosphine ligands, 6,6-bis(diphenylphosphino)-5,5-biquinoline (BIQAP) was synthesized by two step reactions used optical pure BIQOL as starting material and the molecular structure of
Indole frameworks, especially chiral ones, are widely distributed in a large number of bioactive natural products and pharmaceuticals.1 Owing to the importance of these bioactive indole derivatives, i
Chemoselective control of N-and O-selection is an intriguing issue in nitroso chemistry.1 Recently, we reported an unprecedented asymmetric α-amination of β-ketocarbonyls by coupling of catalytic enam
A chiral capillary electrophoresis method, using sulfated-β-cyclodextrin as chiral selector, was developed for the enantioseparation of glycopyrrolate containing two chiral centers.Several parameters
本文合成了一种新的单一异构体离子型环糊精衍生物-天冬氨酸-β-CD衍生物(A-CD).以A-CD为手性选择剂,用毛细管电泳法对特布他林、氯丙那林、丙卡特罗、妥洛特罗、克伦特罗、卡维地洛6种手性药物进行了对映体分离研究.使用磷酸盐缓冲溶液为背景电解质,考察了手性选择剂浓度、背景电解质pH、缓冲盐浓度对分离的影响,优化了对映体分离条件.结果表明,在pH为2.0、浓度为50 mmol·L-1的磷酸盐缓冲