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Molbank, Volume 2012, Issue 3 (September 2012)

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Open AccessShort Note 3-Hydroxy-4-[(phenylimino)methyl]phenyl 4-(Hexadecanoyloxy)benzoate
Molbank 2012, 2012(3), M762; doi:10.3390/M762
Received: 23 April 2012 / Accepted: 19 June 2012 / Published: 25 June 2012
PDF Full-text (76 KB) | Supplementary Files
Abstract A new Schiff base ester, 3-hydroxy-4-[(phenylimino)methyl]phenyl 4-(hexadecanoyloxy)benzoate was synthesized and its IR, 1H-NMR, 13C-NMR and MS spectroscopic data are presented. Full article
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Open AccessShort Note 2-(2-Imino-1-methylimidazolidin-4-ylidene)hydrazinecarbothioamide
Molbank 2012, 2012(3), M763; doi:10.3390/M763
Received: 21 May 2012 / Accepted: 19 June 2012 / Published: 3 July 2012
PDF Full-text (84 KB) | Supplementary Files
Abstract A new thiosemicarbazone, 1-methyl-2-imino-N-(methanethialdiamine)-yl-4-iminoimidazolidin was synthesized and its UV-VIS, IR, and NMR spectroscopic data and CHN analysis are presented. Full article
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Open AccessShort Note (2E)-3-[4-(1H-Benzimidazol-2-ylmethoxy)-3-methoxyphenyl]-1-(4,4''-difluoro-5'-methoxy-1,1':3',1''-terphenyl-4'-yl)prop-2-en-1-one
Molbank 2012, 2012(3), M764; doi:10.3390/M764
Received: 30 May 2012 / Accepted: 25 June 2012 / Published: 4 July 2012
Cited by 3 | PDF Full-text (86 KB) | Supplementary Files
Abstract Novel terphenyl chalcone containing benzimidazole moiety (3) is synthesized by the base-catalyzed Claisen–Schmidt condensation of acetyl terphenyl derivative (1) with 4-(1H-benzimidazol-2-ylmethoxy)-3-methoxybenzaldehyde (2). Newly prepared chalcone derivative (3) is characterized by IR, NMR and mass spectral data. Full article
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Open AccessShort Note 2-Methoxy-5-{4-oxo-2-[(E)-2-(4-sulfamoylphenyl)ethenyl-3,4-dihydroquinazolin-3-yl]benzene-1-sulfonamide
Molbank 2012, 2012(3), M765; doi:10.3390/M765
Received: 2 May 2012 / Accepted: 11 July 2012 / Published: 18 July 2012
PDF Full-text (74 KB) | Supplementary Files
Abstract
The title compound, 2-methoxy-5-{4-oxo-2-[(E)-2-(4-sulfamoylphenyl) ethenyl-3, 4-dihydroquinazolin-3-yl] benzene-1-sulfonamide 2 has been synthesized by the reaction of 3-(4-methoxyphenyl)-2-styryl-4(3H)-quinazolinone 1 with an excess of chlorosulfonic acid, followed by amidation of the sulfonyl chloride product with ammonia gas. The structure of the [...] Read more.
The title compound, 2-methoxy-5-{4-oxo-2-[(E)-2-(4-sulfamoylphenyl) ethenyl-3, 4-dihydroquinazolin-3-yl] benzene-1-sulfonamide 2 has been synthesized by the reaction of 3-(4-methoxyphenyl)-2-styryl-4(3H)-quinazolinone 1 with an excess of chlorosulfonic acid, followed by amidation of the sulfonyl chloride product with ammonia gas. The structure of the synthesized compound was confirmed on the basis of IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
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Open AccessShort Note 1-(1H-Benzimidazol-2-yl)-3-[5-(trichloromethyl)-1,3,4-oxadiazol-2-yl]propan-1-one
Molbank 2012, 2012(3), M766; doi:10.3390/M766
Received: 2 June 2012 / Accepted: 17 July 2012 / Published: 23 July 2012
Cited by 3 | PDF Full-text (118 KB) | Supplementary Files
Abstract
The title compound, 1-(1H-benzimidazol-2-yl)-3-[5-(trichloromethyl)-1,3,4-oxadiazol-2-yl]propan-1-one (2) was synthesized successfully from 4-(1H-benzimidazol-2-yl)-4-oxobutanehydrazide (1) under microwave irradiation in good yield by reacting with trichloroacetic acid, and the structure of title compound was confirmed on the basis of [...] Read more.
The title compound, 1-(1H-benzimidazol-2-yl)-3-[5-(trichloromethyl)-1,3,4-oxadiazol-2-yl]propan-1-one (2) was synthesized successfully from 4-(1H-benzimidazol-2-yl)-4-oxobutanehydrazide (1) under microwave irradiation in good yield by reacting with trichloroacetic acid, and the structure of title compound was confirmed on the basis of IR, 1H-NMR, 13C-NMR, MS and CHN analyses results. Full article
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Open AccessShort Note 4-Hydroxy-1-methyl-7-(propan-2-yl)-4-azatricyclo [5.2.2.02,6]undec-8-ene-3,5-dione
Molbank 2012, 2012(3), M767; doi:10.3390/M767
Received: 13 March 2012 / Accepted: 17 July 2012 / Published: 26 July 2012
PDF Full-text (76 KB) | Supplementary Files
Abstract 1-Methyl-7-(propan-2-yl)-4-oxatricyclo[5.2.2.02,6]undec-8-ene-3,5-dione (1) as starting material and hydroxylamine were used for the preparation of the title compound 4-hydroxy-1-methyl-7-(propan-2-yl)-4-azatricyclo[5.2.2.02,6]undec-8-ene-3,5-dione (2). This product was characterized by 1H-NMR, 13C-NMR, MS and elemental analysis. Full article
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Open AccessShort Note N1-(Benzo[b]thiophen-3-ylmethylidene)-N2-(2-((2-((2-(benzo[b]thiophen-3-ylmethylidene)amino)ethyl)amino)ethyl)amino)ethyl)ethane-1,2-diamine
Molbank 2012, 2012(3), M768; doi:10.3390/M768
Received: 18 June 2012 / Accepted: 31 July 2012 / Published: 6 August 2012
PDF Full-text (262 KB) | Supplementary Files
Abstract A novel probe L has been synthesized by classical Schiff-base reaction between 1-benzothiophene-3-carbaldehyde and tetraethylenepentamine as diamine. The structure of compound L was confirmed by melting point, elemental analysis, ESI-MS spectrometry, IR and 13C-NMR and 1H-NMR spectroscopy. Full article
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Open AccessShort Note N-(3,4-Dimethoxyphenyl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-1-carboxamide Hydrochloride
Molbank 2012, 2012(3), M769; doi:10.3390/M769
Received: 29 May 2012 / Accepted: 3 August 2012 / Published: 8 August 2012
PDF Full-text (66 KB) | Supplementary Files
Abstract A simple and novel route for synthesis of new spirocyclic amide derivative is developed. The present work involves the oxidative cleavage of tert-butyl 1-(furan-2-yl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-7-carboxylate 1 followed by the amine coupling and deprotection of Boc. Full article
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Open AccessShort Note N1-((1H-Indazol-5-yl)methylene)-N2-(2-((2-((2-(((1H-indazol-6-yl)methylene)amino)ethyl)amino)ethyl)amino)ethyl)ethane-1,2-diamine
Molbank 2012, 2012(3), M770; doi:10.3390/M770
Received: 18 June 2012 / Accepted: 31 July 2012 / Published: 9 August 2012
PDF Full-text (56 KB) | Supplementary Files
Abstract One novel molecular emissive probe L has been synthesized by classical Schiff-base reaction between 1H-indazole-6-carboxaldehyde and tetraethylenepentamine. The structure of compound L was confirmed by melting point, elemental analysis, ESI-MS spectrometry and by IR and 13C-NMR and 1H-NMR spectroscopy. Full article
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Open AccessShort Note 3-(4-Fluorophenyl)-N-[4-(4-furan-2-yl-1-oxo-2,3,7-triazaspiro[4.5]dec-3-en-2-yl)phenyl]propionamide Hydrochloride
Molbank 2012, 2012(3), M771; doi:10.3390/M771
Received: 29 June 2012 / Accepted: 15 August 2012 / Published: 17 August 2012
PDF Full-text (70 KB) | Supplementary Files
Abstract
A simple and novel route for the synthesis of new spirocyclic propionamide derivative is developed. The present work involves N-arylation of pyrazolone (1) using copper(I) iodide catalyst followed by reduction to give amine (2). The coupling of [...] Read more.
A simple and novel route for the synthesis of new spirocyclic propionamide derivative is developed. The present work involves N-arylation of pyrazolone (1) using copper(I) iodide catalyst followed by reduction to give amine (2). The coupling of 2 with 3-(4-fluorophenyl)propionic acid and deprotection of Boc group yields the title compound (3). Full article
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Open AccessShort Note 2-[3-(Aziridin-1-yl)-2-hydroxypropyl]-5,5-dimethyl-2,5-dihydro-4H-benzo[e]isoindol-4-one (Cytotoxic Oxonaphthalene-Pyrroles, Part III)
Molbank 2012, 2012(3), M772; doi:10.3390/M772
Received: 27 June 2012 / Accepted: 13 August 2012 / Published: 24 August 2012
PDF Full-text (55 KB) | Supplementary Files
Abstract An hydroxypropyl-aziridine-containing side chain is attached to an oxonaphthalene-annelated pyrrole in expectation of DNA alkylating properties. The cytotoxicity is evaluated against two cell lines, KB-31 and KB-8511, respectively. Full article
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Open AccessShort Note 4-[5-(3,5-Difluorophenyl)furan-2-yl]-2,3,7-triazaspiro[4.5]dec-3-en-1-one Hydrochloride
Molbank 2012, 2012(3), M773; doi:10.3390/M773
Received: 3 July 2012 / Accepted: 21 August 2012 / Published: 24 August 2012
PDF Full-text (62 KB) | Supplementary Files
Abstract
A novel route for the synthesis of new spirocyclic derivative is developed. The present work involves the synthesis of title compound 3 by Suzuki coupling of 3,5-difluorophenyl boronic acid with tert-butyl 1-(5-bromofuran-2-yl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-7-carboxylate (2), which in turn prepared from the [...] Read more.
A novel route for the synthesis of new spirocyclic derivative is developed. The present work involves the synthesis of title compound 3 by Suzuki coupling of 3,5-difluorophenyl boronic acid with tert-butyl 1-(5-bromofuran-2-yl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-7-carboxylate (2), which in turn prepared from the ethyl nipecotate (1). Newly prepared spirocyclic derivative (3) is characterized by IR, NMR and mass spectral data. Full article
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Open AccessShort Note 2-[(4-Bromophenylimino)methyl]-5-pentadecylphenol
Molbank 2012, 2012(3), M774; doi:10.3390/M774
Received: 27 May 2012 / Accepted: 28 June 2012 / Published: 28 August 2012
PDF Full-text (49 KB) | Supplementary Files
Abstract 2-[(4-Bromophenylimino)methyl]-5-pentadecylphenol has been synthesized by reaction of 2-hydroxy-4-pentadecylbenzaldehyde with 4-bromoaniline in 1,4-dioxane and its IR, 1H-NMR, 13C-NMR and MS spectroscopic data are presented. Full article
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Open AccessShort Note Trimethyl 4,6-Dicyano-5-hydroxybenzene-1,2,3-tricarboxylate
Molbank 2012, 2012(3), M775; doi:10.3390/M775
Received: 28 April 2012 / Accepted: 1 August 2012 / Published: 28 August 2012
Cited by 1 | PDF Full-text (260 KB) | Supplementary Files
Abstract
A novel synthesis of a fully substituted fluorescent phenol by a one-pot reaction of dimethyl acetylendicarboxylate and malononitrile in the presence of catalysts has been developed. The structure of the synthesized compound was assigned on the basis of its elemental analysis, 1 [...] Read more.
A novel synthesis of a fully substituted fluorescent phenol by a one-pot reaction of dimethyl acetylendicarboxylate and malononitrile in the presence of catalysts has been developed. The structure of the synthesized compound was assigned on the basis of its elemental analysis, 1H-NMR, 13C-NMR, IR, mass spectral and X-ray data. The photophysical data of the new compound are reported. Full article
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Open AccessShort Note Ethyl 7-Methyl-5-(4-methylphenyl)-3-oxo-2-{[3-(3,4-dichlorophenyl)-1-phenyl-1H-pyrazol-4-yl]methylidene}-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
Molbank 2012, 2012(3), M776; doi:10.3390/M776
Received: 10 August 2012 / Accepted: 31 August 2012 / Published: 7 September 2012
Cited by 5 | PDF Full-text (72 KB) | Supplementary Files
Abstract A simple route for synthesis of compound 3 via three component reaction involving ethyl 6-methyl-4-(4-methylphenyl)-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (1), 3-(3,4-dichlorophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde (2) and monochloroacetic acid is described. The newly synthesized compound is well characterized by elemental analysis, IR, 1H-NMR and mass spectral studies. Full article
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Open AccessShort Note Methyl 2-Benzamido-2-(1H-benzimidazol-1-ylmethoxy)acetate
Molbank 2012, 2012(3), M777; doi:10.3390/M777
Received: 14 August 2012 / Accepted: 7 September 2012 / Published: 21 September 2012
PDF Full-text (85 KB) | Supplementary Files
Abstract The heterocyclic carboxylic α-aminoester methyl 2-benzamido-2-(1H-benzimidazol-1-ylmethoxy)acetate is obtained by O-alkylation of methyl α-azido glycinate N-benzoylated with 1H-benzimidazol-1-ylmethanol. Full article
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