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Molbank, Volume 2011, Issue 1 (March 2011)

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Open AccessShort Note (Benzoylamino)methyl 4-[(Benzoylamino)methoxy]benzoate
Molbank 2011, 2011(1), M711; doi:10.3390/M711
Received: 1 December 2010 / Accepted: 21 December 2010 / Published: 24 December 2010
PDF Full-text (75 KB) | Supplementary Files
Abstract
In this note, two procedures for the synthesis of (benzoylamino)methyl 4-[(benzoylamino)­methoxy]benzoate (3) are presented. The first procedure is carried out in dioxane/water using benzoylaminomethyl-4-hydroxybenzoate, while the second one employs a suspension of 4-hydroxy­benzoic acid in dioxane. In both procedures, benzamidomethyl triethylammonium
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In this note, two procedures for the synthesis of (benzoylamino)methyl 4-[(benzoylamino)­methoxy]benzoate (3) are presented. The first procedure is carried out in dioxane/water using benzoylaminomethyl-4-hydroxybenzoate, while the second one employs a suspension of 4-hydroxy­benzoic acid in dioxane. In both procedures, benzamidomethyl triethylammonium chloride is used for the benzamidomethylation reaction. Full article
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Open AccessShort Note Methyl 4-[(Benzoylamino)methoxy]benzoate
Molbank 2011, 2011(1), M712; doi:10.3390/M712
Received: 1 December 2010 / Accepted: 21 December 2010 / Published: 24 December 2010
PDF Full-text (72 KB) | Supplementary Files
Abstract Methylparabene (2) was simply benzamidomethylated with (benzamidomethyl)­triethylammonium chloride (1) in aqueous medium to afford methyl 4-(benzamido­methoxy)benzoate (3) in high yield. The title compound was characterized by elemental analysis, FT-IR, 1H-NMR and 13C-NMR spectroscopy. Full article
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Open AccessShort Note (2E)-1-(2,5-Dimethyl-3-thienyl)-3-(4-nitrophenyl)propenone
Molbank 2011, 2011(1), M713; doi:10.3390/M713
Received: 2 December 2010 / Accepted: 6 January 2011 / Published: 7 January 2011
PDF Full-text (86 KB) | Supplementary Files
Abstract The title compound, (2E)-1-(2,5-dimethyl-3-thienyl)3-(4-nitrophenyl)propenone (3) was synthesized in high yield by reaction of 3-acetyl-2,5-dimethythiophene and 4-nitrobenzaldehyde in the presence of sodium hydroxide. The structure of the compound was fully characterized by IR, 1H NMR, 13C NMR, GC-MS spectral analysis and elemental analysis. Full article
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Open AccessShort Note [5-(1,3-Diphenyl-1H-pyrazol-4-yl)-3-phenyl-4,5-dihydropyrazol-1-yl](pyridin-4-yl)methanone
Molbank 2011, 2011(1), M714; doi:10.3390/M714
Received: 13 December 2010 / Accepted: 4 January 2011 / Published: 11 January 2011
PDF Full-text (99 KB) | Supplementary Files
Abstract A novel pyrazoline derivative 2 was synthesized by reaction of an α,β-unsaturated ketone 1 with isonicotinic acid hydrazide (INH) in glacial acetic acid. The structure of the title compound 2 was established on basis of IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
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Open AccessShort Note (Benzoylamino)methyl 4-Acetyloxybenzoate
Molbank 2011, 2011(1), M715; doi:10.3390/M715
Received: 1 December 2010 / Accepted: 25 January 2011 / Published: 26 January 2011
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Abstract (Benzoylamino)methyl 4-acetyloxybenzoate (3) was obtained in a reaction of benzamidomethylation of 4-acetyloxybenzoic acid (2) with (benzamidomethyl)­triethyl­ammonium chloride (1). Full article
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Open AccessShort Note Copper 5,10,15,20-Tetra(N-ethyl-3-carbazolyl) Porphyrin
Molbank 2011, 2011(1), M716; doi:10.3390/M716
Received: 30 December 2010 / Accepted: 25 January 2011 / Published: 28 January 2011
PDF Full-text (108 KB) | Supplementary Files
Abstract
The copper complex of 5,10,15,20-Tetra(N-ethyl-3-carbazolyl) porphyrin was synthesized and characterized by electronic absorption spectrophotometry and cyclic voltammetry. The spectral data were in agreement with the proposed structure. The copper complex exhibited a shift in the Soret band in comparison to the
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The copper complex of 5,10,15,20-Tetra(N-ethyl-3-carbazolyl) porphyrin was synthesized and characterized by electronic absorption spectrophotometry and cyclic voltammetry. The spectral data were in agreement with the proposed structure. The copper complex exhibited a shift in the Soret band in comparison to the non-metallated porphyrin and the extinction coefficient for the Soret band was on the order of 105 cm−1M−1. Trends observed in the oxidation and reduction potentials were consistent with the nature of the porphyrin. That is, the electron donating group in 5,10,15,20-tetra(N-ethyl-3-carbazolyl) porphyrin enhances oxidation and inhibits reduction. Full article
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Open AccessShort Note 7-Phenyl-3,4,8,9-tetrahydro-2H-pyridazino[1,6-a][1,3,5]triazin-2-imine
Molbank 2011, 2011(1), M717; doi:10.3390/M717
Received: 19 December 2010 / Accepted: 9 February 2011 / Published: 11 February 2011
PDF Full-text (131 KB) | Supplementary Files
Abstract 7-Phenyl-3,4,8,9-tetrahydro-2H-pyridazino[1,6-a][1,3,5]triazin-2-imine was synthesized by a sequence of reactions starting from 6-phenyl-4,5-dihydropyridazin-3(2H)-one 1. The structure of the title compound 3 was established on the basis of IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
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Open AccessShort Note 6-Methyl-2-nitro-1-phenyl-hept-4-en-3-ol
Molbank 2011, 2011(1), M718; doi:10.3390/M718
Received: 26 January 2011 / Accepted: 15 February 2011 / Published: 16 February 2011
PDF Full-text (89 KB) | Supplementary Files
Abstract In this short note, we report the synthesis of 6-methyl-2-nitro-1-phenyl-hept-4-en-3-ol by a LiAlH4 catalyzed nitroaldol reaction for carbon-carbon bond formation. The title compound was characterized by 1H-NMR, 13C-NMR, MS, IR and elemental analysis. Full article
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Open AccessShort Note trans-2-Phenyl-4-thiophenoxy-3,4-dihydro-2H-1-benzothiopyran
Molbank 2011, 2011(1), M719; doi:10.3390/M719
Received: 10 December 2010 / Accepted: 15 February 2011 / Published: 18 February 2011
PDF Full-text (139 KB) | Supplementary Files
Abstract Iodine-catalyzed cyclocondensation of cinnamaldehyde and thiophenol yields rapidly trans-2-phenyl-4-thiophenoxy-3,4-dihydro-2H-1-benzothiopyran in excellent yield with very high diastereoselectivity. Full article
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Open AccessShort Note 2-[(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methylene]indane-1,3-dione
Molbank 2011, 2011(1), M720; doi:10.3390/M720
Received: 19 January 2011 / Accepted: 23 February 2011 / Published: 28 February 2011
PDF Full-text (97 KB) | Supplementary Files
Abstract
The title compound 2-[(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)methylene]-indane-1,3-dione (3) was synthesized in high yield by reaction of 3,5-dimethyl-1-phenyl-pyrazole-4-carbaldehyde and indane-1,3-dione in ethanol in the presence of pyridine. The structure of this new compound was confirmed by elemental analysis, IR, 1H NMR, 13C NMR and GC-MS spectral analysis.
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The title compound 2-[(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)methylene]-indane-1,3-dione (3) was synthesized in high yield by reaction of 3,5-dimethyl-1-phenyl-pyrazole-4-carbaldehyde and indane-1,3-dione in ethanol in the presence of pyridine. The structure of this new compound was confirmed by elemental analysis, IR, 1H NMR, 13C NMR and GC-MS spectral analysis. Full article
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Open AccessShort Note (S)-(-)-Limonene Derivatives Containing (1H-1,2,3-Triazol-4-yl)methyl 4-Bromobenzoate
Molbank 2011, 2011(1), M721; doi:10.3390/M721
Received: 9 February 2011 / Accepted: 18 March 2011 / Published: 23 March 2011
PDF Full-text (126 KB) | Supplementary Files
Abstract The synthesis of (S)-(-)-limonene derivatives containing (1H-1,2,3-triazol-4-yl)methyl 4-bromobenzoate were obtained by epoxidation, azidolysis and Huisgen’s 1,3-dipolar cycloaddition. Two products were isolated and characterized by FT-IR, 1H NMR, 13C NMR, ESI-MS and optical rotation. Full article
Open AccessShort Note 1,1,2,2-Tetrakis[(benzoylamino)methyl]hydrazine
Molbank 2011, 2011(1), M722; doi:10.3390/M722
Received: 24 February 2011 / Accepted: 18 March 2011 / Published: 23 March 2011
PDF Full-text (147 KB) | Supplementary Files
Abstract We report herein the synthesis of 1,1,2,2-tetrakis[(benzoylamino)methyl]-hydrazine from (benzamidomethyl)triethylammonium chloride and hydrazine monohydrate in the presence of triethylamine in ethanol/aqueous media. The structure of the newly synthesized compound was characterized on the basis of 1H-NMR, 13C-NMR, IR and mass spectral data. Full article

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