Results 1 to 10 of about 21,431 (118)

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

Crystals, 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

A Newly Discovered Racemic Compound of Pioglitazone Hydrochloride Is More Stable than the Commercial Conglomerate [PDF]

Crystal Growth and Design, 2017
Chengcheng Zhang, Adam J. Matzger
exaly   +2 more sources

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

Biomimetics, 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, Jorge Acosta, Horacio López-Sandoval, Ricardo A. Torres-Palma, Yenny Ávila-Torres   +4 more
doaj   +1 more source

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

IUCrData, 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, Ahmed M. Mansour, Amanda-Lee E. Manicum   +2 more
doaj   +1 more source

Mechanochemical Formation of Racemic Praziquantel Hemihydrate with Improved Biopharmaceutical Properties

Pharmaceutics, 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, Dritan Hasa, Mihails Arhangelskis, Gabriela Schneider-Rauber, Michele R. Chierotti, Jennifer Keiser, Dario Voinovich, William Jones, Beatrice Perissutti   +8 more
doaj   +1 more source

(2S)-1,1-Dichloro-2-(2-chlorophenyl)-2-(4-chlorophenyl)ethane

Acta Crystallographica Section E, 2009
The title compound, C14H10Cl4, is easily crystallized while the other enantiomorph only forms an oil upon crystallization attempts. The title compound has a considerably higher density, ρ ≃ 1.562 Mg m−3 compared to the ...
Lars Eriksson, Tatiana Cantillana
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of new polymorph of racemic 2-phenylbutyramide

Acta Crystallographica Section E: Crystallographic Communications, 2019
A new polymorph of the title compound, C10H13NO, was obtained by recrystallization of the commercial product from a water/ethanol mixture (1:1 v/v). Crystals of the previously reported racemic and homochiral forms of 2-phenylbutyramide were grown from ...
Sergei Rigin, Beatrice Armijo, Arcadius V. Krivoshein, Marina Fonari, Tatiana Timofeeva   +4 more
doaj   +1 more source

(2RS,4′RS)-3′-(3-Chloro-4-methoxyphenyl)-4′-phenyl-4′H-spiro[indene-2,5′-isoxazol]-1(3H)-one ethanol monosolvate

Acta Crystallographica Section E, 2011
The title compound, C23H17ClN2O3·C2H6O, is the stoichiometric 1:1 ethanol solvate of a racemic reaction product, which forms a conglomerate. The refined Flack parameter of 0.36 (3) indicates racemic twinning.
Adil Boughaleb, Hafid Zouihri, Said Gmouh, Abdelali Kerbal, Mohamed El yazidi   +4 more
doaj   +1 more source

X-ray Crystallography at 170 K of Racemic 2,2'-Dimethoxy-9,9'-biacridine and 1H NMR Study of 2,2'-Diacetoxy-9,9'-biacridine

Molecules, 1999
Three derivatives of 9,9'-biacridine, 2,2'-dihydroxy, 2,2'-dimethoxy and 2,2'-diacetoxy have been prepared. The crystal structure of racemic 2,2'-dimethoxy-9,9'-biacridine CHCl3 1:1 complex has been determined and shows an almost perpendicular ...
Albert Virgili, José Elguero, Marta Fierros, Concepción Foces- Foces, Antonio L. Llamas-Saiz, Jean-Pierre Galy, Tuan Lormier, Gérard Boyer   +7 more
doaj   +1 more source

Crystal structure and photoreactive behaviour of N,N-diisopropyl(p-phenylphenyl)glyoxylamide

Acta Crystallographica Section E: Crystallographic Communications, 2021
The title compound [systematic name: 2-([1,1′-biphenyl]-4-yl)-2-oxo-N,N-bis(propan-2-yl)acetamide], C20H23NO2 was synthesized and its photoreactive properties in the crystalline state and in acetonitrile solution were investigated.
Hisakazu Miyamoto, Hiroki Takahashi
doaj   +1 more source