June 2016 - 11 articles
A new hybrid molecule containing a triazole and a benzoxazolone ring was synthesized. The structure of 6-[(4-chlorophenyl)(1H-1,2,4-triazol-1-yl) methyl]-3-methyl-2(3H)-benzoxazolone was confirmed by IR, 1H-, 13C-NMR, MS and elemental analysis.
Deoxygenation of a secondary hydroxy group on β-cyclodextrin was conducted to prepare the title compound 2II-VII, 3I-VII, 6I-VII-icosa-O-acetyl-2I-deoxy-cyclomaltoheptaose. The synthetic procedure comprised a two-step reaction—phenoxythiocarbonylatio...
An efficient and cost-effective synthesis of 6-nitro-4H-benzo[d][1,3]thiazin-2-amine based on a sequential SN2-SNAr process is reported. The synthesis is accomplished with an overall yield of 80%.
The title compound was synthesized by multicomponent condensation of 3-amino-1,2,4-triazole, acetone and 5-bromo-2-hydroxy-3-methoxybenzaldehyde. The structure was established by 1H-NMR, 13C-NMR, IR spectroscopy and LC-MS.
The title compound, (E)-3-methyl-6-(3-oxo-3-(thiophen-2-yl)-1-propenyl)-2(3H)-benzothiazolone, was synthesized by Claisen-Schmidt condensation of 3-methyl-2(3H)-benzothiazolone-6-carbaldehyde with 2-acetylthiophene in 94% yield. The structure of the...
A new member of the gymnodimine class of spiroimine toxins has been isolated from a laboratory culture strain of Alexandrium ostenfeldii. Extensive one-dimensional (1D) and two-dimensional (2D) NMR data analysis was used to elucidate its structure as...
Planar bis(1,2-dithiooxalato)nickelate(II), [Ni(dto)]2− reacts in aqueous solutions with lanthanide ions (Ln3+) to form pentanuclear, hetero-bimetallic complexes of the general composition [{Ln(H2O)n}2{Ni(dto)2}3]·xH2O. (n = 4 or 5; x = 9–12). The co...
Nature often produces compounds with a high degree of symmetry to reduce structural information and complexity. Synthesis of identical twin drugs, through the linkage of two identical pharmacophoric entities, is a classical strategy to produce more p...
The title compound was prepared by inducing amide bond formation between 1,4-bis(aminomethyl)benzene and tripeptide Ac-Phe-Gly-Ala-OH. The structure of the synthesized compound was determined on the basis of its 1H-nuclear magnetic resonance (NMR), 1...
A new fluorinated 1-naphtyl pyrazoline (4) has been successfully synthesized by reacting a fluorinated 1-naphtyl chalcone (3) with phenyl hydrazine under microwave irradiation. The structure of compound 4 was characterized by UV-Vis, FTIR, HRMS, 1D N...
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