scholarly journals Spontaneous chiral resolution directed by symmetry restriction and π-π interaction

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Jin-Tao Yu ◽  
Yan-Yan Shi ◽  
Junliang Sun ◽  
Jianhua Lin ◽  
Zhi-Tang Huang ◽  
...  
Keyword(s):  
Chiral Resolution ◽  
Symmetry Restriction

Enantiopure methoxetamine stereoisomers: chiral resolution, conformational analysis, UV-circular dichroism spectroscopy and electronic circular dichroism

2021 ◽  
Author(s):  
Kun Won Lee ◽  
Ahmed H. E. Hassan ◽  
Youngdo Jeong ◽  
Seolmin Yoon ◽  
Seung-Hwan Kim ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Conformational Analysis ◽  
Absolute Configuration ◽  
Circular Dichroism Spectroscopy ◽  
Chiral Resolution ◽  
Treatment Resistant Depression ◽  
Treatment Resistant ◽  
Electronic Circular Dichroism ◽  
Resistant Depression ◽  
Circular Dichroïsm

Enantioseparation and assignment of absolute configuration of methoxetamine (MXE) enantiopure stereoisomers; a promising novel antidepressant for management of treatment-resistant depression.

scholarly journals Chiral Resolution via Cocrystallization with Inorganic Salts

2021 ◽  
Author(s):  
Oleksii Shemchuk ◽  
Fabrizia Grepioni ◽  
Tom Leyssens ◽  
Dario Braga
Keyword(s):  
Chiral Resolution ◽  
Inorganic Salts

Synthesis, Chiral Resolution, and Absolute Configuration of Functionalized Tröger’s Base Derivatives: Part II

ChemPlusChem ◽  
2012 ◽  
Vol 77 (5) ◽  
pp. 396-403 ◽  
Author(s):  
Christian Benkhäuser-Schunk ◽  
Boris Wezisla ◽  
Kirstin Urbahn ◽  
Ulf Kiehne ◽  
Jörg Daniels ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
Chiral Resolution ◽  
Troger's Base

Structural basis of solid solution formation during chiral resolution

2000 ◽  
Vol 11 (20) ◽  
pp. 4061-4070 ◽  
Author(s):  
Orsolya Barabás ◽  
Dóra K Menyhárd ◽  
Zsolt Böcskei ◽  
Kálmán Simon ◽  
Ilona Kiss-Ajzert ◽  
...  
Keyword(s):  
Solid Solution ◽  
Chiral Resolution ◽  
Structural Basis ◽  
Solid Solution Formation ◽  
Solution Formation

scholarly journals Helimeric Porphyrinoids: Stereostructure and Chiral Resolution ofmeso-Tetraarylmorpholinochlorins

2011 ◽  
Vol 133 (22) ◽  
pp. 8740-8752 ◽  
Author(s):  
Christian Brückner ◽  
Daniel C. G. Götz ◽  
Simon P. Fox ◽  
Claudia Ryppa ◽  
Jason R. McCarthy ◽  
...  
Keyword(s):  
Chiral Resolution

A Thermoresponsive Membrane for Chiral Resolution

2008 ◽  
Vol 18 (4) ◽  
pp. 652-663 ◽  
Author(s):  
Mei Yang ◽  
Liang-Yin Chu ◽  
Hai-Dong Wang ◽  
Rui Xie ◽  
Hang Song ◽  
...  
Keyword(s):  
Chiral Resolution

Chiral Resolution of Hexaamine Cobalt(III) Cages: Substituent Effects on Chiral Discrimination

2003 ◽  
Vol 56 (12) ◽  
pp. 1187 ◽  
Author(s):  
Paul V. Bernhardt ◽  
Tri Erny Dyahningtyas ◽  
Jack M. Harrowfield ◽  
Jee-Young Kim ◽  
Yang Kim ◽  
...  
Keyword(s):  
Complex Anion ◽  
Substituent Effects ◽  
Outer Sphere ◽  
Exchange Chromatography ◽  
Chiral Resolution ◽  
Chiral Discrimination ◽  
Pairing Interaction ◽  
X Ray ◽  
Selective Crystallization ◽  
Bonding Interaction

Chiral resolution of the cobalt cage complexes [Co(diNOsar)]3+ and [Co(diAMsarH2)]5+ have been achieved by selective crystallization with the anion bis-μ-(R), (R)-tartratodiantimonate(III) ([Sb2(R,R-tart)2]2–) and also by column chromatography with Na2[Sb2(R,R-tart)2] as eluent. The X-ray crystal structures of Λ-[Co(diNOsar)][Sb2(R,R-tart)2]Cl . 7 H2O and Δ-[Co(diAMsarH2)][Sb2(R,R-tart)2]2Cl . 14 H2O are reported, which reveal an unexpected reversal of chiral discrimination when the cage substituent is changed from nitro (Λ-enantiomer) to ammonio Δ-enantiomer) and shows that the ammonio-substituted cage is capable of forming a three-point hydrogen-bonding interaction with each complex anion, whereas the nitro analogue can only form two hydrogen bonds with each [Sb2(R,R-tart)2]2– anion. During cation exchange chromatography of the racemic cobalt cage complexes with Na2[Sb2(R,R-tart)2] as eluent, Λ-[Co(diNOsar)]3+ elutes first, which implies a tighter ion pairing interaction than for the Δ-enantiomer. On the other hand, Δ-[Co(diAMsarH2)]5+ elutes first during chromatography under identical conditions, which is also consistent with a preferred outer-sphere complex formed between Δ-[Co(diAMsarH2)]5+ and [Sb2(R,R-tart)2]2– relative to Λ-[Co(diAMsarH2)]5+ and [Sb2(R,R-tart)2]2–.

Reversible crystal-to-crystal chiral resolution: making/breaking non-bonding S⋯O interactions

2017 ◽  
Vol 53 (28) ◽  
pp. 3964-3966 ◽  
Author(s):  
R. Alex Mayo ◽  
David J. Sullivan ◽  
Travis A. P. Fillion ◽  
Stefan W. Kycia ◽  
Dmitriy V. Soldatov ◽  
...  
Keyword(s):  
Chiral Resolution ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Unconventional non-covalent interactions are the key to reversible chiral resolution in polycrystalline samples of a small, achiral molecule.

Pyrrolyl 4-quinolone alkaloids from the mangrove endophytic fungus Penicillium steckii SCSIO 41025: Chiral resolution, configurational assignment, and enzyme inhibitory activities

2021 ◽  
Vol 186 ◽  
pp. 112730
Author(s):  
Chun-Mei Chen ◽  
Wei-Hao Chen ◽  
Xiao-Yan Pang ◽  
Sheng-Rong Liao ◽  
Jun-Feng Wang ◽  
...  
Keyword(s):  
Endophytic Fungus ◽  
Chiral Resolution ◽  
Mangrove Endophytic Fungus ◽  
Configurational Assignment ◽  
Inhibitory Activities
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