Results 1 to 10 of about 20,834 (162)

Resolution of a Metastable Racemic Compound of Anhydrous Phencyphos by Hydrate Formation

open access: yesCrystals, 2021
The resolution of 2-hydroxy-5,5-dimethyl-4-phenyl-1,3,2-dioxaphosphorinan 2-oxide (phencyphos) was achieved by dissolution of anhydrous racemic phencyphos, a racemic compound, accompanied by simultaneous secondary nucleation of the dissolved racemate on ...
Michel Leeman, Richard M. Kellogg
doaj   +3 more sources

Enantioselective Biomimetic Structures Inspired by Oxi-Dase-Type Metalloenzymes, Utilizing Polynuclear Compounds Containing Copper (II) and Manganese (II) Ions as Building Blocks

open access: yesBiomimetics, 2023
This study focuses on developing and evaluating two novel enantioselective biomimetic models for the active centers of oxidases (ascorbate oxidase and catalase).
Didier Gómez   +4 more
doaj   +1 more source

6,8-Dichloro-3-(pyridin-2-yl)-2-[1-(pyridin-2-yl)ethyl]-1,2-dihydroquinoxaline

open access: yesIUCrData, 2023
The crystal structure of the racemic title compound, C20H16Cl2N4 is described, where the formation of a di-substituted 6,8-dichloro quinoxaline, containing two stereogenic centres, is confirmed.
Frederick P. Malan   +2 more
doaj   +1 more source

IV.—Characterisation of racemic compounds [PDF]

open access: yesJ. Chem. Soc., Trans., 1899
n ...
Kipping, Frederic Stanley   +1 more
openaire   +1 more source

On the pairwise cocrystallization of racemic compounds

open access: yesCrystEngComm, 2023
In the field of crystallization-based chiral resolution, preferential crystallization is particularly interesting.
Fuli Zhou   +4 more
openaire   +2 more sources

Simultaneous Chiral Resolution of Two Racemic Compounds by Preferential Cocrystallization** [PDF]

open access: yesAngewandte Chemie International Edition, 2021
Abstract We tap into an unexplored area of preferential crystallization, being the first to develop simultaneous chiral resolution of two racemic compounds by preferential cocrystallization. We highlight how the two racemic compounds RS ‐mandelic acid (MAN) and
Fuli Zhou   +6 more
openaire   +5 more sources

LIV.—Existence of racemic compounds in the liquid state [PDF]

open access: yesJ. Chem. Soc., Trans., 1913
n ...
Mitchell, Alec Duncan, Smith, Clarence
openaire   +2 more sources

Mechanochemical Formation of Racemic Praziquantel Hemihydrate with Improved Biopharmaceutical Properties

open access: yesPharmaceutics, 2020
Praziquantel (PZQ) is the first-line drug used against schistosomiasis, one of the most common parasitic diseases in the world. A series of crystalline structures including two new polymorphs of the pure drug and a series of cocrystals of PZQ have been ...
Debora Zanolla   +8 more
doaj   +1 more source

Deracemization of a Racemic Compound by Using Tailor‐Made Additives [PDF]

open access: yesChemistry – A European Journal, 2018
AbstractViedma ripening is a process that combines abrasive grinding of a slurry of crystals with solution‐phase racemization, resulting in solid‐phase deracemization. One of the major disadvantages of Viedma ripening is that the desired compound needs to crystallize as a racemic conglomerate, accounting for only 5–10 % of all chiral molecules. Herein,
Anthonius H. J. Engwerda   +5 more
openaire   +3 more sources

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