Results 21 to 30 of about 5,133 (208)
Synthesis of 2-Oxazolines from Ring Opening Isomerization of 3-Amido-2-Phenyl Azetidines
Molecules, 2021 Chiral 2-oxazolines are valuable building blocks and famous ligands for asymmetric catalysis. The most common synthesis involves the reaction of an amino alcohol with a carboxylic acid.
Xin Zhou, Baiyi Mao, Zhanbin Zhang
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1-Benzoyl-3,3-dinitroazetidine
Acta Crystallographica Section E, 2010 In the title gem-dinitroazetidine derivative, C10H9N3O5, the azetidine ring is almost planar, the maximum value of the endocyclic torsion angle being 0.92 (14)°.
Biao Yan +4 more
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Molecules, 2023 Hydrogen bonds (H-bonds) are ubiquitous in peptides and proteins and are central to the stabilization of their structures. Inter-residue H-bonds between non-adjacent backbone amide NH and C=O motifs lead to the well-known secondary structures of helices,
Dayi Liu +7 more
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3-Azidoazetidines as the first scaffolds for β-amino azetidine carboxylic acid peptidomimetics: Azetidine iminosugars containing an acetamido group do not inhibit β-N-acetylhexosaminidases [PDF]
, 2016 Stable amides and oligopeptides derived from methyl . trans,trans-3-azido-4-hydroxymethyl-l-azetidine carboxylate, prepared in 19% yield from diacetone allose, is the first example of a β-amino-azetidine carboxylic acid incorporated into peptidomimetics ...
Fleet, George +6 more
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Preparation and diagnosis some heterocyclic compounds that derived from 1,3,4 – Thiadiazole compound derived from 1,3,4 – Thiadiazole compound [PDF]
Kirkuk Journal of Science, 2016 This search included synthesis of some heterocyclic compounds devired from 1,3,4- thiadiazol ring ,such as thaiazolidin -4-one substituents Azetidine -3- one and Azo dyes.
Ayad S. H. AL-Maaini Nazhan.KA AL-Luhiby
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4-(2-Oxa-6-azaspiro[3.3]hept-6-yl)benzonitrile
Acta Crystallographica Section E, 2010 In the title compound, C12H12N2O, the azetidine ring (r.m.s. deviation = 0.021 Å) and the oxetane ring (r.m.s. deviation = 0.014 Å) are nearly perpendicular to each other [dihedral angle = 89.7 (1)°
Jian Li +4 more
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[3-Bromomethyl-1-(4-methylphenylsulfonyl)azetidin-3-yl]methanol
Acta Crystallographica Section E, 2011 The asymmetric unit of the title compound, C12H16BrNO3S, contains two independent molecules. In each molecule, the azetidine four-membered ring adopts a nearly planar conformation, the maximum deviations being 0.087 (3) and 0.079 (3 ...
Xiao-Qiang Guo, Hu Zheng, Qing-Rong Qi
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Molecules, 2016 Electron transfer involving nucleic acids and their derivatives is an important field in bioorganic chemistry, specifically in connection with its role in the photo-driven DNA damage and repair.
Ana B. Fraga-Timiraos +4 more
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Preparation and Properties of Azetidine-2-Ones [PDF]
The preparation and properties of some known azetidine~2-ones are reviewed, and the biological properties are summarised. A series of new azetidinones have been synthesised.
Bird, P.G.
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Aromatic Pummerer‐Promoted Stereospecific Cross‐Coupling of Thiazoles With Boronic Esters
Angewandte Chemie, EarlyView.A lithiation–borylation–aromatic Pummerer (LiBAP) strategy enables stereospecific, C5‐selective C(sp2)–C(sp3) cross‐coupling of thiazoles with boronic esters. By using exocyclic sulfoxide activation to overcome the low nucleophilicity that frustrates SEAr‐type coupling, the method delivers enantioenriched alkylated thiazoles bearing a versatile C2 ...
Mark John P. Mandigma +4 more
wiley +2 more sources