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Molbank, Volume 2015, Issue 2 (June 2015)

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Open AccessShort Note N,N',N"-Tris[(5-methoxy-1H-indol-3-yl)ethyl]benzene-1,3,5-tricarboxamide
Molbank 2015, 2015(2), M850; doi:10.3390/M850
Received: 4 February 2015 / Revised: 16 March 2015 / Accepted: 17 March 2015 / Published: 30 March 2015
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Abstract
The title indole-based compound that enforces tripodal topology and is potential applicable for the use as artificial receptor, was prepared by a simple reaction of 1,3,5-benzenetricarbonyl trichloride with 5-methoxytryptamine. The compound was characterized by elemental analysis, 1H-NMR, 13C-NMR and mass spectrometry. Full article
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Open AccessShort Note [(3-Chlorobenzamido)methyl]triethylammonium Chloride
Molbank 2015, 2015(2), M851; doi:10.3390/M851
Received: 24 December 2014 / Accepted: 20 March 2015 / Published: 1 April 2015
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Abstract
We report the synthesis of [(3-chlorobenzamido)methyl]triethylammonium chloride in a reaction of N-(chloromethyl)-3-chlorobenzamide and triethylamine in dry acetone. The structure of the newly synthesized compound was characterized with 1H-NMR, 13C-NMR, FTIR and Mass spectroscopy. Full article
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Open AccessShort Note N-benzyl-(3E,5E)-3,5-bis(2-hydroxybenzylidene)-4-piperidone
Molbank 2015, 2015(2), M852; doi:10.3390/M852
Received: 23 February 2015 / Revised: 30 March 2015 / Accepted: 31 March 2015 / Published: 2 April 2015
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Abstract
A novel N-benzyl-(3E,5E)-3,5-bis(2-hydroxybenzylidene)-4-piperidone (3), was synthesized in good yield by a condensation reaction of 2-hydroxybenzaldehyde (1) and N-benzyl-4-piperidone (2) under microwave irradiation in the presence of 10% NaOH solution. The chemical
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A novel N-benzyl-(3E,5E)-3,5-bis(2-hydroxybenzylidene)-4-piperidone (3), was synthesized in good yield by a condensation reaction of 2-hydroxybenzaldehyde (1) and N-benzyl-4-piperidone (2) under microwave irradiation in the presence of 10% NaOH solution. The chemical structure was assigned on the basis of UV-visible, IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
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Open AccessShort Note 6-(1,3-Dihydroxy-3-phenylpropylidene)-5-hydroxy-2,2,4-trimethylcyclohex-4-ene-1,3-dione
Molbank 2015, 2015(2), M853; doi:10.3390/M853
Received: 23 March 2015 / Revised: 2 April 2015 / Accepted: 3 April 2015 / Published: 13 April 2015
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Abstract
A novel compound involved in the aroma of the fruit Campomanesia lineatifolia was isolated; the structure was determined by spectroscopic methods, mainly 1D and 2D NMR. Full article
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Open AccessShort Note Methyl 2-[(2-{2-[(2-acetamidophenyl)ethynyl]benzamido} phenyl)ethynyl]benzoate
Molbank 2015, 2015(2), M854; doi:10.3390/M854
Received: 23 February 2015 / Revised: 15 April 2015 / Accepted: 16 April 2015 / Published: 17 April 2015
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Abstract
The title compound was prepared by inducing amide bond formation between methyl 2-[(2-aminophenyl)ethynyl]benzoate and 2-[(2-acetamidophenyl)ethynyl]benzoic acid in the presence of dichlorotriphenylphosphorane. The structure of the synthesized compound was determined on the basis of its 1H-nuclear magnetic resonance (NMR), 13C-NMR, and mass
[...] Read more.
The title compound was prepared by inducing amide bond formation between methyl 2-[(2-aminophenyl)ethynyl]benzoate and 2-[(2-acetamidophenyl)ethynyl]benzoic acid in the presence of dichlorotriphenylphosphorane. The structure of the synthesized compound was determined on the basis of its 1H-nuclear magnetic resonance (NMR), 13C-NMR, and mass spectral data. Furthermore, the compound’s crystal structure is also reported. Full article
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Open AccessShort Note (S)-2-Methyl-2-(4-methylpent-3-enyl)-6-(propan-2-ylidene)-3,4,6,7-tetrahydropyrano[4,3-g]chromen-9(2H)-one
Molbank 2015, 2015(2), M855; doi:10.3390/M855
Received: 3 March 2015 / Revised: 16 April 2015 / Accepted: 17 April 2015 / Published: 21 April 2015
Cited by 4 | PDF Full-text (679 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
A novel chromene, (S)-2-methyl-2-(4-methylpent-3-enyl)-6-(propan-2-ylidene)-3,4,6,7-tetrahydropyrano[4,3-g]chromen-9(2H)-one (1), was isolated from the leaves of Peperomia pellucida (Piperaceae). The chemical structure of 1 was determined by spectroscopic methods and comparison with those related compounds previously reported. Full article
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Open AccessShort Note 3-Chlorokenpaullone
Molbank 2015, 2015(2), M856; doi:10.3390/M856
Received: 3 April 2015 / Accepted: 23 April 2015 / Published: 30 April 2015
Cited by 2 | PDF Full-text (682 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
3-Chlorokenpaullone (9-bromo-3-chloro-7,12-dihydroindolo[3,2-d][1]benz­azepin-6(5H)-one) is a novel derivative of the protein kinase inhibitor kenpaullone. The title compound was synthesized by a Fischer indole reaction from 8-chloro-3,4-dihydro-1H-1-benzazepin-2,5-dione and 4-bromophenylhydrazine. It was characterized for structural identity by elemental analysis and spectroscopic
[...] Read more.
3-Chlorokenpaullone (9-bromo-3-chloro-7,12-dihydroindolo[3,2-d][1]benz­azepin-6(5H)-one) is a novel derivative of the protein kinase inhibitor kenpaullone. The title compound was synthesized by a Fischer indole reaction from 8-chloro-3,4-dihydro-1H-1-benzazepin-2,5-dione and 4-bromophenylhydrazine. It was characterized for structural identity by elemental analysis and spectroscopic methods (IR, NMR, EI-MS) and checked for purity by HPLC. Full article
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Open AccessShort Note Ethyl 2-hydroxy-2-phenyl-2-(thiazol-2-yl)acetate
Molbank 2015, 2015(2), M857; doi:10.3390/M857
Received: 7 April 2015 / Revised: 29 April 2015 / Accepted: 4 May 2015 / Published: 6 May 2015
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Abstract
This short note describes the synthesis of the title compound through spontaneous aerobic oxidation of ethyl 2-phenyl-2-(thiazol-2-yl)acetate. Due to the prevalence of such functional motifs in biologically active substances, we believe the oxidation encountered highlights an important degradation pathway worthy of note. Full article
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Open AccessShort Note 2-Fluoro-N-methyl-N-({(3S,4S)-4-[2-(trifluoromethyl)phenoxy]-3,4-dihydro-1H-isochromen-3-yl}methyl)ethanamine
Molbank 2015, 2015(2), M858; doi:10.3390/M858
Received: 13 April 2015 / Revised: 5 May 2015 / Accepted: 6 May 2015 / Published: 8 May 2015
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Abstract
Starting from N-methyl-1-{(3S,4S)-4-[2-(trifluoromethyl)phenoxy]-3,4-dihydro-1H-isochromen-3-yl}methanamine (1) target compound 2 is prepared using a mild, direct alkylation approach with 2-fluoroethyl trifluoromethanesulfonate. Full article
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Open AccessShort Note 3-({5-Bromo-4-[pyrrolidin-1-yl]pyrimidin-2-yl}amino)phenol
Molbank 2015, 2015(2), M859; doi:10.3390/M859
Received: 25 April 2015 / Accepted: 18 May 2015 / Published: 21 May 2015
Cited by 1 | PDF Full-text (656 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
Re-investigation of the 1H-NMR spectrum reported for 15-bromo-4-oxa-2,9-diaza-1(2,4)-pyrimidine-3(1,3)-benzenacyclononaphane (2) prepared via a Mitsunobu- mediated macroether cyclisation led to a proposed structural isomer (3). The title compound (3) was prepared via a two-step protocol and assigned using 1H, 13C-NMR and LC-MS. Full article
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Open AccessShort Note 2-Methylsulfanylbenzo[f]isoquinoline
Molbank 2015, 2015(2), M860; doi:10.3390/M860
Received: 29 April 2015 / Revised: 19 May 2015 / Accepted: 25 May 2015 / Published: 27 May 2015
Cited by 1 | PDF Full-text (360 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
S-Methylation of a 4-(naphth-2-yl)-β-thiolactam gives an intermediate 4-(naphth-2-yl) substituted 1-azetine which undergoes a [2+2] ring-opening followed by electrocyclic ring closure of the resulting 2-azadiene to give a benzo[f]isoquinoline. Full article
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Open AccessShort Note Methyl 3,4-Dicarboxy-3-hydroxyeicosanoate
Molbank 2015, 2015(2), M861; doi:10.3390/M861
Received: 19 March 2015 / Revised: 25 May 2015 / Accepted: 26 May 2015 / Published: 29 May 2015
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Abstract
Methyl 3,4-dicarboxy-3-hydroxyeicosanoate (1) was isolated from the acetone extract of the fruiting bodies of Ciborinia camelliae Kohn. The planar structure of 1 was elucidated by spectroscopic methods. Full article
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Open AccessShort Note 2-Fluoro-N-methyl-N-{[(3S*,4S*)-4-(2-methylphenoxy)-3,4-dihydro-1H-isochromen-3-yl]methyl}ethanamine
Molbank 2015, 2015(2), M862; doi:10.3390/M862
Received: 13 April 2015 / Accepted: 10 June 2015 / Published: 11 June 2015
PDF Full-text (676 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
Starting from N-methyl-1-[(3S*,4S*)-4-(2-methylphenoxy)-3,4-dihydro-1H-isochromen-3-yl]methanamine (1) target compound 2 is prepared in a mild, direct alkylation approach with 2-fluoroethyl trifluoromethanesulfonate. Full article
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Open AccessShort Note 1-[3-(2-Methyl-4-phenylquinolin-3-yl)-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl]-propane-1-one
Molbank 2015, 2015(2), M863; doi:10.3390/M863
Received: 22 March 2015 / Revised: 30 May 2015 / Accepted: 9 June 2015 / Published: 16 June 2015
Cited by 1 | PDF Full-text (642 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
A novel compound, 1-[3-(2-methyl-4-phenylquinolin-3-yl)-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl]-propane-1-one (3) has been synthesized by cyclocondensation of (E)-1-(2-methyl-4-phenylquinolin-3-yl)-3-phenylprop-2-en-1-one (2) and hydrazine hydrate in propionic acid. The structure of this compound was established by elemental analysis, IR, 1H-NMR, 13C-NMR and MS data. Full article
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Open AccessShort Note (S)-N-(N-(((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl)sulfamoyl)-5-oxopyrrolidine-2-carboxamide
Molbank 2015, 2015(2), M864; doi:10.3390/M864
Received: 4 April 2015 / Revised: 1 June 2015 / Accepted: 5 June 2015 / Published: 17 June 2015
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Abstract
Aminoacyl sulfamides represent a family of high-affinity inhibitors of the specific aminoacyl tRNA synthetase activity. In this paper we describe the synthesis of a novel sulfamide adenosine derivative 4 bearing pyroglutamyl fragment (pGlu-SA). Full article
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