Results 121 to 130 of about 83,738 (273)

Bifunctional Aziridines from Photochemically Generated FSO2NH2 for SuFEx Diversification of Alkenes

Angewandte Chemie, EarlyView.
Photochemically generated FSO2NH2 serves as a safe, practical nitrene precursor for Rh‐catalyzed aziridination of alkenes, granting access to previously inaccessible fluorosulfonyl aziridines. These bifunctional electrophiles merge aziridine ring strain with SuFEx reactivity to provide a modular platform toward aliphatic sulfamoyl fluoride derivatives ...
Avinash Choudhury, Varun Prabhakar, Zakary B. Newman, Quentin Michaudel   +3 more
wiley   +2 more sources

Effects of detergents on activity, thermostability and aggregation of immobilized lipases [PDF]

, 2014
Predmetom tejto diplomovej práce bolo štúdium vplyvu detergentov na aktivitu, termostabilitu a agregáciu voľnej a imobilizovanej formy komerčného preparátu lipázy izolovanej z mikroskopickej huby Rhizopus arrhizus. Teoretická časť obsahuje ucelenú rešerš
Bančáková, Anna
core  

A FACILE SYNTHESIS OF (S) – (-) – PROPRANOLOL [PDF]

Journal of Sciences, Islamic Republic of Iran, 2003
A one-pot synthesis of (S)-(-)-propranolol is reported. Zn(NO3)2/(+)-tartaric acid catalyzed enantioselective synthesis of (S)-(-)-propranolol via kinetic resolution of key intermediate ?-naphthyl glycidyl ether with high optical and chemical yield.
doaj  

Enantioselective Synthesis of Oxazocines via MQ‐Phos Enabled Palladium‐Catalyzed Asymmetric Formal [4+4]‐Cycloadditions

Advanced Science
Oxazocines are key structural intermediates in the synthesis of natural products and pharmaceutical molecules. However, the synthesis of oxazocines especially in a highly enantioselective manner, is a long‐standing formidable challenge due to unfavorable
Qiaojing Meng, Yinggao Meng, Qinglin Liu, Bing Yu, Zhong‐Jun Li, Er‐Qing Li, Junliang Zhang   +6 more
doaj   +1 more source

Dual catalysis for enantioselective convergent synthesis of enantiopure vicinal amino alcohols [PDF]

, 2018
Chen‐Xi Ye, Yared Yohannes Melcamu, Heng‐Hui Li, Jiangtao Cheng, Tiantian Zhang, Yuan‐Ping Ruan, Xiao Zheng, Xin Lü, Pei‐Qiang Huang   +8 more
openalex   +1 more source

Synthesis of Chiral 5-Aryl-2-oxazolidinones via an Ir-BiphPHOX Catalyzed Enantioselective Hydrogenation [PDF]

, 2022
Tongli Zhang, Jun Yan, Jingli He, Xuezhen Kou, Jiefeng Shen, Delong Liu, Wanbin Zhang   +6 more
openalex   +1 more source

Enantioselective Synthesis of the C(1)-C(6?) Subunit of Zaragozic Acid C

Journal of the Brazilian Chemical Society, 1998
Preparation of the C(1)-C(6?) subunit of Zaragozic acid C is described. The C(5?) methyl-bearing stereocenter is installed by rapid, regioselective opening of a phenylcyclopropyl carbinol with Pearlman?s catalyst (1 atm H2) in 2% triflic acid/methanol.
Carreira Erick M., Ledford Brian E.
doaj  

Applications of Nanozymes in Chiral-Molecule Recognition through Electrochemical and Ultraviolet–Visible Analysis

Molecules
Chiral molecules have similar physicochemical properties, which are different in terms of physiological activities and toxicities, rendering their differentiation and recognition highly significant. Nanozymes, which are nanomaterials with inherent enzyme-
Jing-Jing Dai, Guo-Ying Chen, Lei Xu, Huan Zhu, Feng-Qing Yang   +4 more
doaj   +1 more source

In Silico Design and Enantioselective Synthesis of Functionalized Monocyclic 3‐Amino‐1‐carboxymethyl‐β‐lactams as Inhibitors of Penicillin‐Binding Proteins of Resistant Bacteria [PDF]

, 2018
Lena Decuyper, Sari Deketelaere, Lore Vanparys, Marko Jukič, Izidor Sosič, E. Sauvage, Ana Amoroso, Olivier Verlaine, Bernard Joris, Stanislav Gobec, Matthias D’hooghe   +10 more
openalex   +1 more source

Catalytic Asymmetric Cyclizative Rearrangement of Anilines and Vicinal Diketones to Access 2,2‐Disubstituted Indolin‐3‐ones

Advanced Science
The efficient synthesis of chiral 2,2‐disubstituted indolin‐3‐ones is of great importance due to its significant synthetic and biological applications. However, catalytic enantioselective methods for de novo synthesis of such heterocycles remain scarce ...
Rui Quan, Xing‐Zi Li, Zi‐Qi Wang, Yu‐Ping He, Hua Wu   +4 more
doaj   +1 more source