Results 61 to 70 of about 3,397 (210)

Enantioseparation of (±)-trans-β-lactam Ureas by Supercritical Fluid Chromatography [PDF]

, 2020
In this study the enantioseparation of (±)-trans-β-lactam ureas 1a–g by supercritical fluid chromatography (SFC) was examined using different polysaccharide based chiral stationary phases (CSPs), and CO2/alcohol (70:30, V/V) as the mobile phase.
Jurin, Mladenka, Dražić, Tonko, Roje, Marin, Kontrec, Darko, Darko Kontrec, Tonko Dražić, Marin Roje, Mladenka Jurin   +7 more
core   +1 more source

Evaluation and comparison of N-cycloalkylformylated chitosan bis(arylcarbamate)s as chiral selectors for enantioseparation

, 2017
In order to systematically investigate the structural dependence on the properties of N-cycloalkyl-formylated chitosan bis(arylcarbamate)s, 3,5-dimethylphenylcarbamates of N-cyclopropylformylated, N-cyclobutylformylated, N-cyclopentylformylated and N ...
Zheng-Wu Bai, Tang, Sheng, Ke-Qin Fu, Bai, Zheng-Wu, Shao-Hua Huang, Huang, Shao-Hua, Chen, Wei, Fu, Ke-Qin, Liu, Jian-De, Xiao-Chen Wang, Jian-De Liu, Sheng Tang, Fei Yang, Wei Chen, Wang, Xiao-Chen, Yang, Fei   +15 more
core   +1 more source

Tightly-Twisted One-Handed Helical Tubular Ladder Polymers with π-Electron-Rich Cylindrical Helical Cavities for Chromatographic Enantioseparation [PDF]

, 2022
Defect-free one-handed contracted helical tubular ladder polymers with a π-electron-rich cylindrical helical cavity were synthesized by alkyne benzannulations of the random-coil precursor polymers containing 6,6´-linked-1,1´-spirobiindane-7,7´-diol-based
Yuh, Hijikata, Tomoyuki, Ikai, Wei, Zheng, Eiji, Yashima, Kosuke, Oki, Ranajit, Saha   +5 more
core   +2 more sources

Asymmetric Diphosphane Dioxides With A–π–A–π’–D Scaffolds for High‐Purity Deep‐Blue Luminescence

Chemistry – A European Journal, Volume 32, Issue 36, 24 September 2026.
Diphosphane dioxide‐based luminophores with donor–π–acceptor– π’–acceptor scaffold enable efficient deep‐blue emission from tunable charge‐transfer states affording high photoluminescence up to 95%. OLEDs reach EQE 4.9%, aided by triplet–triplet annihilation, highlighting a practical route to high‐performance blue emitters.
Eetu Hakkarainen, Zong‐Ying Liu, Jhon Sebastian Oviedo Ortiz, Nicolas Vanthuyne, Jeanne Crassous, Ondřej Mrózek, Fabien B. L. Cougnon, Wen‐Yi Hung, Pi‐Tai Chou, Igor O. Koshevoy, Andrey Belyaev   +10 more
wiley   +1 more source

Machine Learning for Synthetic Organic Chemistry: Methods, Applications, and Best Practices

Angewandte Chemie Novit, Volume 2, Issue 3, September 2026.
Artificial intelligence (AI) and machine learning (ML) are increasingly reshaping experimental chemistry. This review maps the challenges of synthetic organic chemistry to modern digital tools that can help address them. While focusing on the practical application of ML tools in real‐world laboratory settings, we outline prerequisites, emerging ...
Niklas Hölter, Felix Katzenburg, Florian Boser, Frank Glorius   +3 more
wiley   +1 more source

Enantioseparation and derivatization of selected amino acid. [PDF]

, 2010
The enantioseparation of native and derivatized form of D,L-valine was studied on chiral stationary phase, based on teicoplanin chiral selector. The most suitable mobile phase for the enantioseparation and quantification of underivatized D,L-valine was ...
Rozumová, Nela
core   +1 more source

Phane Nomenclature. Part II: Modification of the Degree of Hydrogenation and Substitution Derivatives of Phane Parent Hydrides [PDF]

Kemija u Industriji, 2010
Cyclophane and linear phane systems are considered as parent hydrides. Their derivatives are named in conformity with the principles, rules, and conventions prescribed for naming organic compounds.
Šumanovac Ramljak, T., Mlinarić-Majerski, K   +1 more
doaj  

A Comparative Study of Coupled Preferential Crystallizers for the Efficient Resolution of Conglomerate-Forming Enantiomers

Pharmaceutics, 2017
The separation of enantiomers is of great importance due to their possible differences in therapeutic properties. Preferential crystallization in various configurations of coupled batch crystallizers is used as an attractive means to separate the ...
Aniruddha Majumder, Zoltan K. Nagy
doaj   +1 more source

Enantioseparation by Sonochromatography

Bulletin of the Korean Chemical Society, 2006
Although chiral separation has been one of the main topics of chromatographic practice for over twenty-five years, it still presents many difficulties. In this work, the ultrasonic dependence of chiral resolution was investigated at various temperatures to improve resolution and reduce analysis time.
openaire   +2 more sources

Enantioseparation by Dual-flow Countercurrent Extraction: Its Application to the Enantioseparation of (.+-.)-Propranolol.

Chemical and Pharmaceutical Bulletin, 1996
Enantioseparation of (±)-propranolol has been demonstrated by countercurrent extraction with a two-phase system composed of a chloroform solution of didodecyl L-tartrate (100mM) and an acetate buffer (50mM, pH 4.4) containing boric acid (100mM). The free base of (±)-propranolol (1.6g) was dissolved in the aqueous phase and extracted five times by means
ABE, Yoshiohiro, SHOJI, Tomoko, FUKUI, Shikie, SASAMOTO, Maki, NISHIZAWA, Hideyuki   +4 more
openaire   +2 more sources