Emerging Capabilities of Nonclassical Noncovalent Interactions and Asymmetric Catalysis in Stereoselective Glycosylations and Carbohydrate Functionalizations [0.03%]
非经典非共价相互作用及不对称催化的新兴能力在立体选择性糖基化和碳水化合物功能化中的应用
Amal Tom Sebastian,Charles C J Loh
Amal Tom Sebastian
Additionally, rarely observed dynamic kinetic resolution type glycosylations on reducing sugars were unravelled when chiral Rh(I) and chiral copper catalytic systems were employed.
Kinetic Resolution of Racemic Amines via Palladium/Chiral Phosphoric Acid-Catalyzed Intramolecular Allylation: Stereodivergent Access to Chiral 1,3-Disubstituted Isoindolines [0.03%]
手性钯/磷配体催化内 allyl 化合物不对称反应合成含氮杂环化合物
Bing-Syuan Wu,Yu-Ming Lin,Cheng-Che Tsai
Bing-Syuan Wu
This article presents the kinetic resolution (KR) of racemic amines through stereoselective intramolecular allylation with palladium as a catalyst and chiral phosphoric acid as a cocatalyst.
Iridium-Catalyzed Z-Selective Asymmetric Allylic Substitution Reaction via Z/ E Kinetic Resolution [0.03%]
铱催化Z-选择性不对称烯丙基取代反应及Z/E动力学拆分反应
Yi-Ming Hou,Ru Jiang,Jiandong Liu et al.
Yi-Ming Hou et al.
Herein, we report an Ir-catalyzed Z-selective asymmetric allylic substitution using oxindoles as nucleophiles via the kinetic resolution of Z/E olefin mixtures.
Sergio Martínez-Rodríguez,Jose Antonio Gavira
Sergio Martínez-Rodríguez
N-Acyl-D-amino acid deacylases (EC 3.5.1.81, also known as D-acylases) have been studied for decades for their utility in the kinetic resolution of N-acetyl-D,L-amino acids (NAAs) due to a marked stereospecificity....In conjunction with an N-succinyl-amino acid racemase (NSAR), they impulse the dynamic kinetic resolution (DKR) of different NAAs until the corresponding enantiomerically pure D-amino acids.
Linglong Kan,Zihao Xu,Yuge Ji et al.
Linglong Kan et al.
Here, we report a direct kinetic resolution of alkyl-substituted 1,2-diamines through titanium-catalyzed asymmetric oxidation to produce hydroxylamines.
Chemoenzymatic Dynamic Kinetic Resolution of a Tertiary Alcohol Based on Compartmentalization of Oxovanadium and Lipase Catalysts by Means of a Polydimethylsiloxane Thimble [0.03%]
基于聚二甲基硅氧烷指环分离氧化钒和脂肪酶催化剂的亚胺交换反应实现季醇的动力学拆分
Karla Wagner,Satoshi Horino,Anke Hummel et al.
Karla Wagner et al.
Addressing the challenging field of chemoenzymatic dynamic kinetic resolution (DKR) of tertiary alcohols, for which so far only one example exists in the literature, we combined biocatalytic esterification and oxovanadium-catalyzed racemization, operating both steps in two different compartments of one
A multiscale in situ time-resolved study of the nano- to millisecond structural dynamics during protein crystallization [0.03%]
蛋白结晶过程中的纳至毫秒级多尺度原位时间分辨结构动力学研究
Christian Beck,Ilaria Mosca,Laura M Miñarro et al.
Christian Beck et al.
The wide range of methods probe the sample on ångström to millimetre length scales, accessing nanosecond to millisecond dynamics information while acquiring data with minute-timescale kinetic resolution during crystallization.
Soluble and pocket engineering of D-amino acid oxidase and its application in the biotransformation of L-glufosinate [0.03%]
D-氨基酸氧化酶的可溶表达与“口袋”改造及其在L-草铵膦生物转化中的应用
Xin Kang,JiaQi Xu,ZiYuan Wang et al.
Xin Kang et al.
The kinetic resolution of commercially available DL-PPT into optically pure L-PPT through four-enzyme one-pot biocatalysis presents a promising approach.
Catalytic enantioselective synthesis of planar chiral pillar[5]arenes via dynamic kinetic resolution [0.03%]
动态动力学拆分催化对映选择性合成平面手性柱芳烃
Xiao-Hua Zhou,Wei Wang
Xiao-Hua Zhou
Recently, asymmetric catalytic synthesis via dynamic kinetic resolution has proven to serve as a powerful tool for the efficient preparation of planar chiral pillar[5]arenes, which allows for achieving high levels of enantioinduction while producing a series of functionalized planar chiral pillar[5]arenes
Dynamic Kinetic Asymmetric P-C Coupling of Secondary Phosphine Oxides with Alkenyl Iodides [0.03%]
二级膦氧化物与烯基碘化物的动态动力学不对称P-C偶联反应
Si-Mu Ren,Wen-Jun Yang,Kang Ding et al.
Si-Mu Ren et al.
However, most reported transformations proceeded via kinetic resolution of SPOs, inherently limiting efficiency. In contrast, dynamic kinetic asymmetric coupling enables full conversion of racemic SPOs─offering a more effective pathway─yet such methods remain rare.
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