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Molbank, Volume 2011, Issue 4 (December 2011)

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Open AccessShort Note 4-Amino-N-(2-hydroxy-4-pentadecylbenzylidene)benzenesulfonamide
Molbank 2011, 2011(4), M739; doi:10.3390/M739
Received: 23 August 2011 / Revised: 24 September 2011 / Accepted: 8 October 2011 / Published: 13 October 2011
PDF Full-text (83 KB) | Supplementary Files
Abstract 4-Amino-N-(2-hydroxy-4-pentadecylbenzylidene)benzenesulfonamide has been synthesized by reaction of 2-hydroxy-4-pentadecylbenzaldehyde with 4-aminobenzenesulfonamide in the presence of acetic acid in ethanol. The structure of this new compound was confirmed by elemental analysis, IR, 1H-NMR, 13C-NMR and mass spectral analysis. Full article
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Open AccessShort Note N-(4-Methylsulfonamido-3-phenoxyphenyl)-9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximide
Molbank 2011, 2011(4), M740; doi:10.3390/M740
Received: 7 September 2011 / Accepted: 30 September 2011 / Published: 14 October 2011
Cited by 1 | PDF Full-text (175 KB) | Supplementary Files
Abstract The title compound, N-(4-methylsulfonamido-3-phenoxyphenyl)-9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximide was synthesized in high yield by reaction of N-(4-amino-2-phenoxyphenyl)methanesulfonamide and 9,10-dihydroanthracene-9,10-endo-α,β-succinic anhydride in glacial acetic acid. The structure of the compound was fully characterized by IR, 1H and 13C NMR, mass spectral analysis and elemental analysis. Full article
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Open AccessShort Note 2-(6-Methoxynaphthalen-2-yl)propionic acid (1,3-dimethyl­butylidene)hydrazide
Molbank 2011, 2011(4), M741; doi:10.3390/M741
Received: 16 August 2011 / Accepted: 23 September 2011 / Published: 18 October 2011
PDF Full-text (191 KB) | Supplementary Files
Abstract
The title compound, 2-(6-methoxynaphthalen-2-yl)propionic acid (1,3-dimethyl­butylidene)hydrazide was synthesized in high yield by the reaction of 2-(6-methoxy­naphthalen-2-yl)propionic acid hydrazide and 4-methylpentan-2-one in PEG 400. This compound was fully characterized by IR, 1H NMR, mass spectra and elemental analysis. The in vitro antibacterial activity [...] Read more.
The title compound, 2-(6-methoxynaphthalen-2-yl)propionic acid (1,3-dimethyl­butylidene)hydrazide was synthesized in high yield by the reaction of 2-(6-methoxy­naphthalen-2-yl)propionic acid hydrazide and 4-methylpentan-2-one in PEG 400. This compound was fully characterized by IR, 1H NMR, mass spectra and elemental analysis. The in vitro antibacterial activity of this compound was evaluated against gram positive and gram negative bacteria. Full article
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Open AccessShort Note 3-[1-(4-Methylphenyl)-3-oxo-1,3,4,5,6,7-hexahydro-2H-isoindol-2-yl]propanoic Acid
Molbank 2011, 2011(4), M742; doi:10.3390/M742
Received: 3 August 2011 / Accepted: 8 November 2011 / Published: 10 November 2011
Cited by 1 | PDF Full-text (174 KB) | Supplementary Files
Abstract A simple solvent-free synthesis of 3-[1-(4-methylphenyl)-3-oxo-1,3,4,5,6,7-hexahydro-2H-isoindol-2-yl]propanoic acid 3 was achieved by fusion of cis-2-[(4-methylphenyl)carbonyl]cyclohexanecarboxylic acid 1 with 3-aminopropanoic acid 2. The structure of this new compound was confirmed by elemental analysis, IR, EI-MS, 1H-NMR and 13C-NMR spectral data. Full article
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Open AccessShort Note Ethyl (1,3-diphenyl-1H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-yl)acetate
Molbank 2011, 2011(4), M743; doi:10.3390/M743
Received: 16 August 2011 / Accepted: 13 October 2011 / Published: 10 November 2011
PDF Full-text (186 KB) | Supplementary Files
Abstract Novel ethyl (1,3-diphenyl-1H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-yl)acetate (5), was prepared via heating of 5-amino-1,3-diphenyl-4,5-dihydro-4-imino-1H-pyrazolo[3,4-d] pyrimidine (1) and diethyl malonate (2) under reflux. The structure of the synthesized compound was assigned on the basis of its elemental analysis, IR, 1H-NMR and mass spectral data. Full article
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Open AccessShort Note 1-(8-Chloro-3-methyl-1H-pyrazolo[4,3-c]cinnolin-1-yl)-2-(2-chlorophenyl)ethanone
Molbank 2011, 2011(4), M744; doi:10.3390/M744
Received: 23 September 2011 / Accepted: 11 November 2011 / Published: 16 November 2011
PDF Full-text (161 KB) | Supplementary Files
Abstract
1-(8-Chloro-3-methyl-1H-pyrazolo[4,3-c]cinnolin-1-yl)-2-(2-chlorophenyl)ethanone 2 has been synthesized through condensation of 3-acetyl-6-chloro-1H-cinnolin-4-one 1 with 2-(2-chlorophenyl)acetohydrazide in polar aprotic solvent containing catalytic amount of conc. HCl. The structure of the title compound 2 was established on the basis of IR, [...] Read more.
1-(8-Chloro-3-methyl-1H-pyrazolo[4,3-c]cinnolin-1-yl)-2-(2-chlorophenyl)ethanone 2 has been synthesized through condensation of 3-acetyl-6-chloro-1H-cinnolin-4-one 1 with 2-(2-chlorophenyl)acetohydrazide in polar aprotic solvent containing catalytic amount of conc. HCl. The structure of the title compound 2 was established on the basis of IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
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Open AccessShort Note Ethyl 4,4''-Difluoro-5'-hydroxy-1,1':3',1''-terphenyl-4'-carboxylate
Molbank 2011, 2011(4), M745; doi:10.3390/M745
Received: 3 August 2011 / Accepted: 18 November 2011 / Published: 23 November 2011
Cited by 9 | PDF Full-text (180 KB) | Supplementary Files
Abstract
A simple and novel route for the synthesis of new terphenyl derivative as well as oxidative aromatization of α,β-unsaturated cyclohexenone to the corresponding phenol derivative is developed. The present work involves the condensation of ethylacetoacetate with 4,4'-difluoro chalcone followed by the aromatization [...] Read more.
A simple and novel route for the synthesis of new terphenyl derivative as well as oxidative aromatization of α,β-unsaturated cyclohexenone to the corresponding phenol derivative is developed. The present work involves the condensation of ethylacetoacetate with 4,4'-difluoro chalcone followed by the aromatization using chloramine-T in acetic acid to yield the title compound (3). The synthesized compound (3) is well characterized by IR, NMR, LCMS and elemental analysis. Full article
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Open AccessShort Note (E)-Ethyl 3-(Dimethylamino)-2-(7,9-diphenyl-7H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-2-yl)acrylate
Molbank 2011, 2011(4), M746; doi:10.3390/M746
Received: 30 November 2011 / Accepted: 13 December 2011 / Published: 20 December 2011
PDF Full-text (120 KB) | Supplementary Files
Abstract Novel (E)-ethyl 3-(dimethylamino)-2-(7,9-diphenyl-7H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-2-yl)acrylate (3A), was prepared via condensation of ethyl (1,3-diphenyl-1H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-yl)acetate (1) and dimethylformamide-dimethylacetal under reflux. The structure of the synthesized compound was assigned on the basis of elemental analysis, IR, 1H NMR and mass spectral data. Full article
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