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Molbank, Volume 2010, Issue 4 (December 2010) – 13 articles

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Tribenzamidomethyl Hydrazine
Molbank 2010, 2010(4), M710; https://doi.org/10.3390/M710 - 07 Dec 2010
Cited by 2 | Viewed by 3095
Abstract
A new tribenzamidomethyl hydrazine was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
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Diphenyl(2-propoxyethyl)phosphine
Molbank 2010, 2010(4), M709; https://doi.org/10.3390/M709 - 02 Dec 2010
Viewed by 3551
Abstract
A new 2-(diphenylphosphino)ethyl propyl ether as hemilabile hybrid ether-phosphine ligand [Ph2PCH2CH2OCH2CH2CH3] was made available. The structure of the titled compound was characterized by elemental analysis, IR, 31P-NMR, 1H-NMR, 13C-NMR, UV-visible spectroscopy and EI-MS. Full article
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(E)-1-(2-Hydroxy-4,6-dimethoxyphenyl)-3-[4-methoxy-3-(3-methylbut-2-en-1-yl)phenyl]prop-2-en-1-one
Molbank 2010, 2010(4), M708; https://doi.org/10.3390/M708 - 24 Nov 2010
Viewed by 3700
Abstract
A novel prenylated chalcone, (E)-1-(2-hydroxy-4,6-dimethoxyphenyl)-3-[4-methoxy-3-(3-methylbut-2-en-1-yl)phenyl]prop-2-en-1-one was synthesized and the structure of the title compound was established by 1H and 13C nuclear magnetic resonance (NMR), mass spectrometry (MS) and Fourier transform infrared (FT-IR) spectroscopy. Full article
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N,N'-(1,2-Phenylene)-bis[4-(azidomethyl)benzamide]
Molbank 2010, 2010(4), M707; https://doi.org/10.3390/M707 - 18 Nov 2010
Cited by 1 | Viewed by 3225
Abstract
The synthesis of N,N''-(1,2-phenylene)-bis[4-(azidomethyl)benzamide] (2) by direct nucleophilic disubstitution of the suitable dihalogen precursor 1 with NaN3 is reported. The structure of the title compound was fully characterized by FT-IR, 1H NMR, 13C NMR, EI-MS, elemental analysis and melting point determination. Full article
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5-Dimethylamino-1-phenylchromeno[2,3-c]pyrazol-4(1H)-one
Molbank 2010, 2010(4), M706; https://doi.org/10.3390/M706 - 05 Nov 2010
Viewed by 3171
Abstract
The title compound was prepared by treatment of 5-fluoro-1-phenylchromeno [2,3-c]pyrazol-4(1H)-one with aqueous dimethylamine. Detailed spectroscopic data (1H NMR, 13C NMR, 15N NMR, IR, MS) are presented. Full article
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N,N'-1,2-Phenylenebis[4-(chloromethyl)benzamide]
Molbank 2010, 2010(4), M705; https://doi.org/10.3390/M705 - 04 Nov 2010
Cited by 1 | Viewed by 3908
Abstract
N,N'-1,2-Phenylenebis[4-(chloromethyl)benzamide] (3) was obtained in 61% yield by nucleophilic acyl substitution of 4-(chloromethyl)benzoyl chloride (2) with 1,2-phenylenediamine (1) under basic conditions. The title compound was characterized by FT-IR, 1H NMR, 13C NMR, low- and high-resolution EI-MS, and melting point. Full article
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1,1’,1’’,1’’’-[Porphyrin-5,10,15,20-tetrayltetrakis(3,1-phenylenemethylene)]tetraquinolinium Tetrabromide
Molbank 2010, 2010(4), M704; https://doi.org/10.3390/M704 - 01 Nov 2010
Viewed by 3122
Abstract
Cationic porphyrins interact strongly with guanine quadruplex DNA (G-quadruplex). We herein report the preparation of a cationic porphyrin bearing quinolinium side arms, 1,1’,1’’,1’’’-[porphyrin-5,10,15,20-tetrayltetrakis(3,1-phenylenemethylene)]­tetra­quinolinium tetrabromide (mQu), as a potential G-quadruplex ligand. Full article
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3,5-Di(-O-acetyl)-3′,4′,7-tri[-O-(2-O-acetylethyl)]quercetin
Molbank 2010, 2010(4), M703; https://doi.org/10.3390/M703 - 27 Oct 2010
Viewed by 4043
Abstract
A new quercetin derivative, 3,5-di(-O-acetyl)-3′,4′,7-tri[-O-(2-O-acetylethyl)]­quercetin, was synthesized. The structure of the target compound was characterized by IR, 1H NMR, 13C NMR and MS. Full article
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N,N'-{1,3-Phenylenebis[methyleneoxy-2,1-phenylene(Z)methylylidene]}bis[1-(1-naphthyl)methanamine]
Molbank 2010, 2010(4), M702; https://doi.org/10.3390/M702 - 26 Oct 2010
Viewed by 4644
Abstract
A new fluorescent di-imine compound containing two naphthalene groups has been synthesized by classical Schiff-base reaction between 2,2’-[1,3-phenylene­bis­(methyleneoxy)]dibenzaldehyde and 1-naphthylmethylamine. The new bischromophoric compound has been characterised by IR, NMR and MALDI-TOF MS spectroscopy. The photophysical characterization was carried out by UV-vis and [...] Read more.
A new fluorescent di-imine compound containing two naphthalene groups has been synthesized by classical Schiff-base reaction between 2,2’-[1,3-phenylene­bis­(methyleneoxy)]dibenzaldehyde and 1-naphthylmethylamine. The new bischromophoric compound has been characterised by IR, NMR and MALDI-TOF MS spectroscopy. The photophysical characterization was carried out by UV-vis and fluorescence emission spectroscopy, using chloroform. The monomer and excimer bands, typical for the naphthalene in solution, are present in the emission spectra for the compound. Full article
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Dipropargyl 2,2'-isophthaloylbis(hydrazinecarboxylate)
Molbank 2010, 2010(4), M701; https://doi.org/10.3390/M701 - 25 Oct 2010
Viewed by 3099
Abstract
The synthesis of dipropargyl 2,2'-isophthaloylbis(hydrazinecarboxylate) (3) by an addition-elimination reaction between isophthalic dihydrazide (1) and dipropargyl dicarbonate (2) is reported. The title compound was characterized by FT-IR, 1H NMR, 13C NMR, EI-MS, elemental analysis and melting point determination. Full article
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6-Phenyl-2-(4-phenyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)-4,5-dihydropyridazin-3(2H)-one
Molbank 2010, 2010(4), M700; https://doi.org/10.3390/M700 - 25 Oct 2010
Viewed by 3168
Abstract
6-Phenyl-2-(4-phenyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)-4,5-dihydro­pyridazin-3(2H)-one 3 has been synthesized by a sequence of reactions starting from 6-oxo-3-phenyl-5,6-dihydropyridazine-1(4H)-carbohydrazide 1. The structure of the title compound 3 was established on the basis of IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
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8-[2-(1H-indol-3-yl)vinyl]-10,10-dimethyl-10H-pyrido[1,2-a] indolium Perchlorate
Molbank 2010, 2010(4), M699; https://doi.org/10.3390/M699 - 14 Oct 2010
Viewed by 3466
Abstract
A novel compound, 8-[2-(1H-indol-3-yl)vinyl)]-10,10-dimethyl-10H-pyrido[1,2-a]indolium perchlorate, was synthesized by the condensation of 8,10,10-trimethyl-10H- pyrido[1,2-a]indolium perchlorate and indole-3-carbaldehyde in the presence of piperidine. The structure of the target compound was characterized by IR, 1H [...] Read more.
A novel compound, 8-[2-(1H-indol-3-yl)vinyl)]-10,10-dimethyl-10H-pyrido[1,2-a]indolium perchlorate, was synthesized by the condensation of 8,10,10-trimethyl-10H- pyrido[1,2-a]indolium perchlorate and indole-3-carbaldehyde in the presence of piperidine. The structure of the target compound was characterized by IR, 1H NMR and elemental analysis, and its UV-visible absorption and emission spectra were also determined. Full article
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2-((Pyren-1-ylmethylamino)methyl)quinolin-8-ol
Molbank 2010, 2010(4), M698; https://doi.org/10.3390/M698 - 14 Oct 2010
Viewed by 4478
Abstract
A new fluorescent compound L1 derived from 1-pyrenemethylamine hydrochloride (A) has been synthesized by classical Schiff-base reaction between (A) and 8-hydroxyquinoline-2-carbaldehyde (B) followed by a chemical reduction with NaBH4. The chemical structure was confirmed by [...] Read more.
A new fluorescent compound L1 derived from 1-pyrenemethylamine hydrochloride (A) has been synthesized by classical Schiff-base reaction between (A) and 8-hydroxyquinoline-2-carbaldehyde (B) followed by a chemical reduction with NaBH4. The chemical structure was confirmed by elemental analysis, FAB-MS spectrometry and by IR, UV-vis and 1H-NMR spectroscopy. The photophysical characterization was achieved by UV-vis and emission spectroscopy and lifetime measurements. Compound L1 was explored as pH fluorescent chemosensor in water-acetonitrile (95.5/0.5 v:v) solutions. Full article
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