Results 41 to 50 of about 23,430 (289)
Synthesis and crystal structure of (±)-Goniotamirenone C
Acta Crystallographica Section E: Crystallographic Communications, 2020 The structure of the racemic version of the natural product Goniotamirenone C [racemic anti-6-(2-chloro-1-hydroxy-2-phenylethyl)-2H-pyran-2-one, C13H11ClO3] at 150 K is reported. The compound crystallizes with monoclinic (P21/n) symmetry and with Z′ = 2.
Pornphimol Meesakul +3 more
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Crystals, 2021 The expected (E)-but-3-en-2-ones compounds I and II (half curcuminoids) were obtained by the Claisen–Schmidt reaction between aldehydes 3,4-dimethoxybenzaldehyde or 4-nitrobenzaldehyde with acetone.
Marco A. Obregón-Mendoza +7 more
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rac-3-[(Anilino)(naphthalen-2-yl)methyl]thian-4-one
Acta Crystallographica Section E, 2012 In the title compound, C22H21NOS, the thiopyranone ring adopts a chair-like conformation with the substituent in the axial position. The relative configuration of the racemic compound is 3R,7S according to the numbering scheme used in this publication ...
A. Wahid Mesbah +3 more
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(3aR*,7aS*)-1-(p-Tolylsulfonyl)perhydroindol-2-one
Acta Crystallographica Section E, 2010 In the racemic title compound, C15H19NO3S, the dihedral angle between the planes of the benzene ring and the O=S=O group is 56.92 (7)° and the cyclohexane ring adopts a chair conformation.
Lei Fang, Xu-Bin Fang, Lei Chen
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rac-Ethyl rel-(2R,3R,4S)-4-hydroxy-1,2-dimethyl-5-oxopyrrolidine-3-carboxylate
IUCrData, 2023 The asymmetric unit of the title compound, C9H15NO4, consists of a functionalized pyrrolidine ring having an envelope conformation, synthesized as an ethyl ester. The molecule has three chiral centres and crystallized as a racemic mixture. In the crystal,
Fatin Nur Ain Abdul Rashid +6 more
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rac-18-Methoxycoronaridine hydrochloride
Acta Crystallographica Section E, 2012 In the crystal structure of the racemic title compound, C22H29N2O3+·Cl−, both NH groups form N—H...Cl hydrogen bonds with the chloride counter-ion, forming translational chains along the a axis.
Martin E. Kuehne, Rory Waterman
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Crystallization of the Racemic Compound and Conglomerate of (RS)-2-Chloromandelic Acid
, 2016 (RS)-2-Chloromandelic acid is a new example of chiral compounds that can exist as a racemic compound or a conglomerate depending on the crystallization conditions. Two polymorphic racemic compounds and one conglomerate were disclosed and characterized in
Sohrab Rohani (1755568) +3 more
core +1 more source
Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials
Advanced Materials, EarlyView.A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella +3 more
wiley +1 more source
N-Phenyladamantane-1-sulfinamide
Acta Crystallographica Section E, 2008 In the racemic title compound, C16H21NOS, the molecules are packed into polymeric chains in the b-axis direction and are linked along the b axis by N—H...O and C—H...O hydrogen bonds.
Mrityunjoy Datta +3 more
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Recent advances in enzymatic and chemical deracemisation of racemic compounds
Chemical Society Reviews, 2013 Deracemisation of racemic compounds is still the most important strategy to produce optically pure compounds despite many recent advances in asymmetric synthesis. Especially deracemisation approaches that give rise to single enantiomers are preferred, which can be achieved either by invoking organocatalysts, metal complexes or enzymes - leading to ...
Rachwalski, M. +2 more
openaire +5 more sources