Two-chiral component microemulsion EKC – chiral surfactant and chiral oil. Part 2: Diethyl tartrate

2007 ◽  
Vol 28 (15) ◽  
pp. 2644-2657 ◽  
Author(s):  
Kimberly A. Kahle ◽  
Joe P. Foley
Keyword(s):  
Chiral Component

A Viedma ripening route to an enantiopure building block for Levetiracetam and Brivaracetam

2019 ◽  
Vol 17 (1) ◽  
pp. 35-38 ◽  
Author(s):  
Iaroslav Baglai ◽  
Michel Leeman ◽  
Richard M. Kellogg ◽  
Willem L. Noorduin
Keyword(s):  
Building Block ◽  
Rational Design ◽  
Large Scale ◽  
Enantiomerically Pure ◽  
Ripening Process ◽  
Simple Route ◽  
Chiral Component ◽  
Design And Application

A simple route to enantiomerically pure (S)-2-aminobutyramide – the chiral component of the anti-epileptic drugs Levetiracetam and Brivaracetam has been developed. This approach is based on the rational design and application of a Viedma ripening process. The practical potential of the process is demonstrated on a large scale.

Structure of (Z)-(5R)-methyl-2-(4-phenylbenzylidene)cyclohexanone as chiral component of liquid-crystalline systems

2006 ◽  
Vol 55 (6) ◽  
pp. 999-1009
Author(s):  
A. I. Krivoshey ◽  
N. S. Pivnenko ◽  
S. V. Shishkina ◽  
A. V. Turov ◽  
L. A. Kutulya ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Chiral Component

Chiral building blocks for amphotericin B

1986 ◽  
Vol 64 (9) ◽  
pp. 1800-1809 ◽  
Author(s):  
David Liang ◽  
Henry W. Pauls ◽  
Bert Fraser-Reid ◽  
Michael Georges ◽  
Azeez M. Mubarak ◽  
...  
Keyword(s):  
Family Member ◽  
Amphotericin B ◽  
Absolute Configuration ◽  
Building Blocks ◽  
Carbon Chain ◽  
Polyene Macrolides ◽  
General Plan ◽  
Chiral Component

A general plan is outlined for disconnection of the polyene macrolides, which is aimed at achieving their syntheses, as well as facilitating the determination of their absolute configurations. The plan is exemplified by amphotericin B, I, the only family member of known absolute configuration. The major chiral component is a 20-carbon chain, III, which upon further retrosynthetic disconnection leads to three subunits, two of which correspond to the dideoxy hexoses IV and V. Although these are formally mirror images, they are best represented as the 3,4-dideoxyhexopyranoside, 1, and the 3,5-dideoxyfuranose, 2. Syntheses of 1 and 2 from readily available starting materials are described.

scholarly journals Synthesis and Investigation of Polymerization Properties of Methacrylic Monomers with Chiral Fragments

2015 ◽  
Vol 3 (2) ◽  
pp. 101-108
Author(s):  
Oksana Nadtoka ◽  
Anton Gerasimenko ◽  
Vladimir Syromyatnikov
Keyword(s):  
Absorption Spectra ◽  
Wavelength Region ◽  
Reactivity Ratios ◽  
Trans Form ◽  
Chiral Component ◽  
Methacrylic Monomers ◽  
Azobenzene Derivatives

Methacrylic monomers containing chiral moieties and azobenzene derivatives were synthesized. As the chiral component was used menthol. The polymerization properties of monomer (5-methyl-2- (1-methyl)cyclohexanol with azomonomers were studied and the reactivity ratios as well as parameters Q and e characterizing the activity of the obtained monomers have been calculated. On basis of the synthesized monomers were synthesized chiral-photochromic copolymers and their absorption spectra were studied. It was shown that in the copolymers absorption spectra the absorption maxima are in the wavelength region of 340-360 nm and correspond to trans-form of azo fragments.

MIXING EFFECTS IN SUPERNOVA PROCESSES WITH RIGHT-HANDED NEUTRINOS

1992 ◽  
Vol 07 (27) ◽  
pp. 2535-2542
Author(s):  
R. HORVAT
Keyword(s):  
Magnetic Moment ◽  
Charge Radius ◽  
Dense Medium ◽  
Dirac Neutrino ◽  
Neutrino Magnetic Moment ◽  
Mixing Effects ◽  
Neutrino Field ◽  
Modification Factor ◽  
Chiral Component ◽  
The Right

The right-handed chiral component of the Dirac neutrino field in a dense medium is derived for two generation mixing. As an application, the modification factor on the luminosity of a supernova core is given for ν+ emission by neutrino-magnetic-moment and neutrino-charge-radius interactions.

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