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Molbank, Volume 2014, Issue 1 (March 2014)

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Editorial

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Open AccessEditorial Acknowledgement to Reviewers of Molbank in 2013
Molbank 2014, 2014(1), M817; doi:10.3390/M817
Received: 26 February 2014 / Accepted: 26 February 2014 / Published: 26 February 2014
PDF Full-text (123 KB)
Abstract The editors of Molbank would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2013. [...] Full article

Other

Jump to: Editorial

Open AccessShort Note 4,8-Bisallyl-2,6-dimethylnaphthalene-1,5-diyl Diacetate
Molbank 2014, 2014(1), M812; doi:10.3390/M812
Received: 4 December 2013 / Accepted: 8 January 2014 / Published: 13 January 2014
PDF Full-text (158 KB) | Supplementary Files
Abstract 4,8-Diallyl-2,6-dimethylnaphthalene-1,5-diyl diacetate (1) which is a highly substituted naphthalene derivative has been synthesized in two steps starting from 2,6-dimethyl-1,5-naphthalenediol (3) using a modified Claisen-rearrangement. Full article
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Open AccessShort Note Diethyl 2,2'-[Biphenyl-4,4'-diyldihydrazin-2-yl-1-ylidene]bis(chloroacetate)
Molbank 2014, 2014(1), M813; doi:10.3390/M813
Received: 26 December 2013 / Accepted: 15 January 2014 / Published: 22 January 2014
Cited by 1 | PDF Full-text (206 KB) | Supplementary Files
Abstract Diethyl 2,2'-[biphenyl-4,4'-diyldihydrazin-2-yl-1-ylidene]bis(chloroacetate) was synthesized in high yield via Japp–Klingemann reaction. The structure of this compound was fully characterized by IR, 1H-NMR, 13C-NMR, Mass spectra and elemental analysis. Full article
Figures

Open AccessShort Note 2-{(E)-2-[(3E)-2-Chloro-3-{(2E)-2-[1,1-dimethyl-3-(3-phenylpropyl)-1,3-dihydro-2H-benzo[e]indol-2-ylidene]-ethylidene}cyclohex-1-en-1-yl]ethenyl}-1,1-dimethyl-3-(3-phenylpropyl)-1H-benzo[e]indolium Iodide
Molbank 2014, 2014(1), M814; doi:10.3390/M814
Received: 20 December 2013 / Accepted: 22 January 2014 / Published: 30 January 2014
PDF Full-text (266 KB) | Supplementary Files
Abstract
In four synthetic steps we successfully prepared a red-shifted heptamethine cyanine dye (λmax = 825 nm in methanol) that could be very useful for biochemists and bioanalytical chemists for probing lipophilic environments, including the hydrophobic pockets of enzymes. The heptamethine dye structure
[...] Read more.
In four synthetic steps we successfully prepared a red-shifted heptamethine cyanine dye (λmax = 825 nm in methanol) that could be very useful for biochemists and bioanalytical chemists for probing lipophilic environments, including the hydrophobic pockets of enzymes. The heptamethine dye structure was characterized by various spectroscopic techniques including 1H-NMR, 13C-NMR and high-resolution accurate mass spectroscopy (HRMS). We have also shown the hydrophobicity spectrally by varying methanol/water ratios and observing corresponding absorbance and fluorescence spectral changes. Full article
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Open AccessShort Note 4-(Hexyloxy)aniline-linked chitooligosaccharide-2,5-anhydro-D-mannofuranose
Molbank 2014, 2014(1), M815; doi:10.3390/M815
Received: 17 January 2014 / Accepted: 8 February 2014 / Published: 12 February 2014
PDF Full-text (173 KB) | Supplementary Files
Abstract
Low molecular weight chitooligosaccharide with one 2,5-anhydro-D-mannofuranose unit at the reducing end (COSamf) was prepared by nitrous deamination of fully N-deacetylated chitosan. The functionalization of the amf unit by reductive amination with 4-(hexyloxy)aniline in presence of NaBH3CN was achieved in
[...] Read more.
Low molecular weight chitooligosaccharide with one 2,5-anhydro-D-mannofuranose unit at the reducing end (COSamf) was prepared by nitrous deamination of fully N-deacetylated chitosan. The functionalization of the amf unit by reductive amination with 4-(hexyloxy)aniline in presence of NaBH3CN was achieved in high yield. The chemical structure of the targeted 4-(hexyloxy)aniline-linked chitooligosaccharide-2,5-anhydro-D-mannofuranose was fully characterized by NMR spectroscopy, MALDI-TOF mass spectrometry and size-exclusion chromatography. This synthesis opens the way to a new generation of COSamf derivatives with potential amphiphilic properties. Full article
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Open AccessShort Note 2,3-Bis(4-(3-(trifluoromethyl)-3H-diazirin-3-yl)phenyl)oxirane
Molbank 2014, 2014(1), M816; doi:10.3390/M816
Received: 20 January 2014 / Accepted: 18 February 2014 / Published: 24 February 2014
PDF Full-text (205 KB) | Supplementary Files
Abstract The title compound, which has two photoreactive groups in a molecule, was synthesized by the coupling reaction of 3-(4-(bromomethyl)phenyl)-3-(trifluoromethyl)-3H-diazirine in the presence of silver oxide in DMSO. Full article
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Open AccessShort Note [7-(Fluoromethyl)-2-naphthyl]methanol
Molbank 2014, 2014(1), M818; doi:10.3390/M818
Received: 26 January 2014 / Accepted: 21 February 2014 / Published: 26 February 2014
PDF Full-text (195 KB) | Supplementary Files
Abstract The title compound was synthesized from 2,7-bis(bromomethyl)naphthalene via two step sequence-partial halogen exchange, followed by hydrolysis. The structure of this product was established by 1H-NMR, 13C-NMR, 19F-NMR, FT-IR spectroscopy and elemental analysis. Full article
Figures

Open AccessShort Note N,N-Dibenzyl-1-(1-[(4-methyl-2-phenyl-4,5-dihydrooxazol-4-yl)methyl)]-1H-1,2,3-triazol-4-yl)methanamine
Molbank 2014, 2014(1), M819; doi:10.3390/M819
Received: 5 January 2014 / Accepted: 18 February 2014 / Published: 3 March 2014
PDF Full-text (174 KB) | Supplementary Files
Abstract The title compound, N,N-dibenzyl-1-(1-[(4-methyl-2-phenyl-4,5-dihydrooxazol-4-yl)methyl)]-1H-1,2,3-triazol-4-yl)methanamine was synthesized in high yield by 1,3-dipolar cycloaddition reaction of 4-(azidomethyl)-4-methyl-2-phenyl-4,5-dihydrooxazole and N,N-dibenzylprop-2-yn-1-amine in toluene at reflux. The structure of this product was established on the basis of NMR spectroscopy (1H, 13C), Elemental Analysis and MS data. Full article
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Open AccessShort Note 2-(4-(2-Chloroacetamido)-1-methyl-1H-pyrrole-2-carboxamido)ethyl Acetate
Molbank 2014, 2014(1), M820; doi:10.3390/M820
Received: 20 December 2013 / Accepted: 27 February 2014 / Published: 5 March 2014
PDF Full-text (263 KB) | Supplementary Files
Abstract The title compound 2-(4-(2-chloroacetamido)-1-methyl-1H-pyrrole-2-carboxamido)ethyl acetate was synthesized. The structure of the compound was fully characterized by 1H-NMR, 13C-NMR and mass spectral analysis. Full article
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Open AccessShort Note N-{[(4-Nitrophenyl)amino]methyl}benzamide
Molbank 2014, 2014(1), M821; doi:10.3390/M821
Received: 30 December 2013 / Accepted: 3 March 2014 / Published: 11 March 2014
PDF Full-text (227 KB) | Supplementary Files
Abstract We report the synthesis of N-{[(4-nitrophenyl)amino]methyl}benzamide from (benzamidomethyl)triethylammonium chloride and 4-nitroaniline in aqueous media. The structure of the newly synthesized compound was characterized on the basis of 1H-NMR, 13C-NMR and FTIR spectroscopy. Full article
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