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Molbank, Volume 2011, Issue 4 (December 2011) – 8 articles

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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; https://doi.org/10.3390/M746 - 20 Dec 2011
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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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Ethyl 4,4''-Difluoro-5'-hydroxy-1,1':3',1''-terphenyl-4'-carboxylate
Molbank 2011, 2011(4), M745; https://doi.org/10.3390/M745 - 23 Nov 2011
Cited by 12 | Viewed by 3047
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 using [...] 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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1-(8-Chloro-3-methyl-1H-pyrazolo[4,3-c]cinnolin-1-yl)-2-(2-chlorophenyl)ethanone
Molbank 2011, 2011(4), M744; https://doi.org/10.3390/M744 - 16 Nov 2011
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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, 1H-NMR, 13C-NMR and mass spectral data. Full article
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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; https://doi.org/10.3390/M743 - 10 Nov 2011
Cited by 2 | Viewed by 2155
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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3-[1-(4-Methylphenyl)-3-oxo-1,3,4,5,6,7-hexahydro-2H-isoindol-2-yl]propanoic Acid
Molbank 2011, 2011(4), M742; https://doi.org/10.3390/M742 - 10 Nov 2011
Cited by 1 | Viewed by 2580
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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2-(6-Methoxynaphthalen-2-yl)propionic acid (1,3-dimethyl­butylidene)hydrazide
Molbank 2011, 2011(4), M741; https://doi.org/10.3390/M741 - 18 Oct 2011
Cited by 2 | Viewed by 2499
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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N-(4-Methylsulfonamido-3-phenoxyphenyl)-9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximide
Molbank 2011, 2011(4), M740; https://doi.org/10.3390/M740 - 14 Oct 2011
Cited by 3 | Viewed by 3398
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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4-Amino-N-(2-hydroxy-4-pentadecylbenzylidene)benzenesulfonamide
Molbank 2011, 2011(4), M739; https://doi.org/10.3390/M739 - 13 Oct 2011
Cited by 2 | Viewed by 2187
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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