Results 1 to 10 of about 3,741,215 (311)

Crystal structure of β-d,l-fructose

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C6H12O6, was crystallized from an aqueous solution of equimolar mixture of d- and l-fructose (1,3,4,5,6-pentahydroxyhexan-2-one, arabino-hexulose or levulose), and it was confirmed that d-fructose (or l-fructose) formed β-pyranose ...
Tomohiko Ishii   +4 more
doaj   +1 more source

rac-8a'-Methyl-3′,4′,8′,8a'-tetrahydro-2′H-spiro[[1,3]dioxolane-2,1′-naphthalen]-6′(7′H)-one

open access: yesActa Crystallographica Section E, 2011
The title racemic compound, C13H18O3, a common precursor in the total synthesis of terpenes, crystallizes with two molecules in the asymmetric unit.
Franz Werner, Liina Toon, Riina Aav
doaj   +1 more source

(R,R/S,S)-9-Benzyl-3-methyl-7-phenyl-1,6-dioxa-3,9-diazaspiro[4.4]nonane-2,8-dione

open access: yesIUCrData, 2019
The title compound, C19H18N2O4, a rare example of a spirocyclic orthoamide, was synthesized by a double cyclization of a N-Boc protected sarcosine derivative.
Craig M. Forsyth, Zohreh Nazarian
doaj   +1 more source

4-(3-Methoxyphenyl)-2,6-dimethylcyclohex-3-enecarboxylic acid

open access: yesActa Crystallographica Section E, 2010
The racemic title compound, C16H20O3, was synthesized to study the hydrogen-bonding interaction of the two enantiomers in the solid state. In the crystal structure, R and S pairs of the racemate are linked by pairs of intermolecular O—H...O ...
Songwen Xie   +3 more
doaj   +1 more source

quasi-racemic compound

open access: yes, 2014
Citation: 'quasi-racemic compound' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.Q05001 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

(1RS,2SR,5SR)-9-Benzyl-2-[(1RS)-1-hydroxybenzyl]-9-azabicyclo[3.3.1]nonan-3-one from synchrotron data

open access: yesActa Crystallographica Section E, 2012
In the crystal structure of the racemic title compound, C22H25NO2, solved and refined against sychrotron diffraction data, the hydroxy group and the carbonyl O atom participate in the formation of O—H...O hydrogen bonds between pairs of ...
Karol Wolosewicz   +3 more
doaj   +1 more source

5-(2,3-Dichlorophenyl)-3-(4-methoxyphenyl)-1-phenyl-4,5-dihydro-1H-pyrazole

open access: yesIUCrData, 2017
In the racemic title compound, C22H18Cl2N2O, the dihedral angles between the central dihydropyrazole ring (r.m.s. deviation = 0.018 Å) and the pendant methoxyphenyl, phenyl and dichlorophenyl rings are 3.96 (9), 15.90 (9) and 66.65 (9)° respectively ...
D. M. Lokeshwari   +6 more
doaj   +1 more source

rac-(4R,17S,18R,26R)-Ethyl 4′-methoxycarbonyl-5′′-(4-methoxyphenyl)-1′-methyl-2,3′′-dioxo-2′′,3′′-dihydroindoline-3-spiro-2′-pyrrolidine-3′-spiro-2′′-thiazolo[3,2-a]pyrimidine-6′′-carboxylate

open access: yesActa Crystallographica Section E, 2009
In the title compound, C30H30N4O7S, the two spiro junctions link a planar 2-oxindole ring [with a mean deviation from the plane of 0.0319 (3) Å, a pyrrolidine ring in an envelope conformation and a thiazolo[3,2-a]pyrimidine system.
Xiao-Fang Li   +3 more
doaj   +1 more source

2-Chloro-1,2-diphenylethanone (desyl chloride)

open access: yesActa Crystallographica Section E, 2011
The title compound, C14H11ClO, is a racemic derivative of benzoin. Its carbonyl group adopts a nearly eclipsed conformation with the Cl substituent characterized by a dihedral angle of 17.5 (2)°.
Richard Betz   +2 more
doaj   +1 more source

N-(4-Chlorophenyl)-7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboximide

open access: yesActa Crystallographica Section E, 2010
In the title racemic compound, C14H10ClNO3, which contains four stereogenic centres, the cyclohexane ring tends towards a boat conformation, while the tetrahydrofuran and dihydrofuran rings adopt envelope conformations.
Jian Li
doaj   +1 more source

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