Absolute configuration of an axially chiral sulfonate determined from its optical rotatory dispersion, electronic circular dichroism, and vibrational circular dichroism spectra

Chirality ◽  
2017 ◽  
Vol 29 (11) ◽  
pp. 670-676 ◽  
Author(s):  
Cody L. Covington ◽  
Vijay Raghavan ◽  
Jonathan P. Smuts ◽  
Daniel W. Armstrong ◽  
Prasad L. Polavarapu
Keyword(s):  
Circular Dichroism ◽  
Absolute Configuration ◽  
Vibrational Circular Dichroism ◽  
Optical Rotatory Dispersion ◽  
Rotatory Dispersion ◽  
Optical Rotatory ◽  
Circular Dichroism Spectra ◽  
Electronic Circular Dichroism ◽  
Axially Chiral ◽  
Circular Dichroïsm

A configurational and conformational study of (−)-Oseltamivir using a multi-chiroptical approach

2015 ◽  
Vol 13 (10) ◽  
pp. 2999-3010 ◽  
Author(s):  
Marcin Górecki
Keyword(s):  
Circular Dichroism ◽  
Optical Activity ◽  
Vibrational Circular Dichroism ◽  
Optical Rotatory Dispersion ◽  
Rotatory Dispersion ◽  
Optical Rotatory ◽  
Conformational Study ◽  
Electronic Circular Dichroism ◽  
Raman Optical Activity ◽  
Circular Dichroïsm

Four chiroptical methods, i.e. electronic circular dichroism (ECD), optical rotatory dispersion (ORD), vibrational circular dichroism (VCD), and Raman optical activity (ROA) were employed to discover a set of the most probable conformations of (−)-Oseltamivir in solution.

scholarly journals The absolute configuration of cryptopleurine and tylocrebrine

1978 ◽  
Vol 31 (9) ◽  
pp. 2095 ◽  
Author(s):  
E Gellert ◽  
R Rudzats ◽  
JC Craig ◽  
SK Roy ◽  
RW Woodard
Keyword(s):  
Circular Dichroism ◽  
Absolute Configuration ◽  
Optical Rotatory Dispersion ◽  
Rotatory Dispersion ◽  
Optical Rotatory ◽  
Circular Dichroism Spectra ◽  
The Absolute ◽  
Circular Dichroïsm

The absolute configurations of cryptopleurine and (-)-tylocrebrine have been established as R and S respectively by comparison of their optical rotatory dispersion and circular dichroism spectra with those of tylophorine.

scholarly journals Assignment Through Chiroptical Methods of The Absolute Configuration of Fungal Dihydropyranpyran-4-5-Diones Phytotoxins, Potential Herbicides for Buffelgrass (Cenchrus ciliaris) Biocontrol

Molecules ◽  
2019 ◽  
Vol 24 (17) ◽  
pp. 3022 ◽  
Author(s):  
Ernesto Santoro ◽  
Giuseppe Mazzeo ◽  
Giulia Marsico ◽  
Marco Masi ◽  
Giovanna Longhi ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Computational Methods ◽  
Absolute Configuration ◽  
Vibrational Circular Dichroism ◽  
Optical Rotatory Dispersion ◽  
Rotatory Dispersion ◽  
Optical Rotatory ◽  
Cenchrus Ciliaris ◽  
The Absolute ◽  
Circular Dichroïsm

Radicinin and cochliotoxin (1 and 2) two phytotoxic pyranpyran-4,5-diones were isolated together with their close metabolites 3-epi-radicinin, radicinol, and its 3-epimer (3–5), from the culture filtrates of Cochliobolus australiensis, a fungus proposed as mycoherbcide for biocontrol of buffelgrass, a very noxious and dangerous weed. The absolute configuration of cochliotoxin was determined by chiroptical Optical Rotatory Dispersion (ORD), Electronic Circular Dichroism (ECD), and Vibrational Circular Dichroism (VCD)) and computational methods. The same methods were used to confirm that of radicinin, radicinol and their 3-epimers, previously determined with chemical, spectroscopic and ECD methods.

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