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Table of Contents

Molbank, Volume 2010, Issue 4 (December 2010), M698-M710

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	M698 Javier Fernández-Lodeiro, Cristina Nuñez, José Luis Capelo and Carlos Lodeiro Short Note: 2-((Pyren-1-ylmethylamino)methyl)quinolin-8-ol Molbank 2010, 2010(4), M698; doi:10.3390/M698 Received: 25 September 2010 / Accepted: 12 October 2010 / Published: 14 October 2010 Show/Hide Abstract | Download PDF Full-text (105 KB) |  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 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.
	M699 Peng Cao, Lin Jiang, Xue-Bin Zhang and Shang-Zheng Ge Short Note: 8-[2-(1H-indol-3-yl)vinyl]-10,10-dimethyl-10H-pyrido[1,2-a] indolium Perchlorate Molbank 2010, 2010(4), M699; doi:10.3390/M699 Received: 10 August 2010 / Accepted: 13 October 2010 / Published: 14 October 2010 Show/Hide Abstract | Download PDF Full-text (171 KB) |  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 NMR and elemental analysis, and its UV-visible absorption and emission spectra were also determined.
	M700 Ravinesh Mishra, Anees A. Siddiqui, Mohammad Shaharyar, Asif Husain and Mohd Rashid Short Note: 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; doi:10.3390/M700 Received: 9 October 2010 / Accepted: 21 October 2010 / Published: 25 October 2010 Show/Hide Abstract | Download PDF Full-text (96 KB) |  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.
	M701 Thimo Huber and David D. Díaz Short Note: Dipropargyl 2,2'-isophthaloylbis(hydrazinecarboxylate) Molbank 2010, 2010(4), M701; doi:10.3390/M701 Received: 7 September 2010 / Accepted: 22 October 2010 / Published: 25 October 2010 Show/Hide Abstract | Download PDF Full-text (229 KB) |  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.
	M702 Lucy A. George, Emilia Bertolo and Carlos Lodeiro Short Note: N,N'-{1,3-Phenylenebis[methyleneoxy-2,1-phenylene(Z)methylylidene]}bis[1-(1-naphthyl)methanamine] Molbank 2010, 2010(4), M702; doi:10.3390/M702 Received: 12 October 2010 / Accepted: 21 October 2010 / Published: 26 October 2010 Show/Hide Abstract | Download PDF Full-text (80 KB) |  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 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.
	M703 Yufa Liu and Liwei Zhang Short Note: 3,5-Di(-O-acetyl)-3′,4′,7-tri[-O-(2-O-acetylethyl)]quercetin Molbank 2010, 2010(4), M703; doi:10.3390/M703 Received: 13 September 2010 / Accepted: 20 October 2010 / Published: 27 October 2010 Show/Hide Abstract | Download PDF Full-text (114 KB) |  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.
	M704 Yoshinobu Ishikawa, Takeshi Yamashita, Satoshi Fujii and Tadayuki Uno Short Note: 1,1’,1’’,1’’’-[Porphyrin-5,10,15,20-tetrayltetrakis(3,1-phenylenemethylene)]tetraquinolinium Tetrabromide Molbank 2010, 2010(4), M704; doi:10.3390/M704 Received: 8 October 2010 / Accepted: 28 October 2010 / Published: 1 November 2010 Show/Hide Abstract | Download PDF Full-text (256 KB) |  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.
	M705 Jürgen Bachl and David D. Díaz Short Note: N,N'-1,2-Phenylenebis[4-(chloromethyl)benzamide] Molbank 2010, 2010(4), M705; doi:10.3390/M705 Received: 8 October 2010 / Accepted: 1 November 2010 / Published: 4 November 2010 Show/Hide Abstract | Download PDF Full-text (202 KB) |  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.
	M706 Angelika Ebner and Wolfgang Holzer Short Note: 5-Dimethylamino-1-phenylchromeno[2,3-c]pyrazol-4(1H)-one Molbank 2010, 2010(4), M706; doi:10.3390/M706 Received: 9 October 2010 / Accepted: 4 November 2010 / Published: 5 November 2010 Show/Hide Abstract | Download PDF Full-text (369 KB) |  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.
	M707 Jürgen Bachl and David D. Díaz Short Note: N,N'-(1,2-Phenylene)-bis[4-(azidomethyl)benzamide] Molbank 2010, 2010(4), M707; doi:10.3390/M707 Received: 8 October 2010 / Accepted: 16 November 2010 / Published: 18 November 2010 Show/Hide Abstract | Download PDF Full-text (147 KB) |  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.
	M708 Adiana Mohamed Adib Short Note: (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; doi:10.3390/M708 Received: 19 October 2010 / Accepted: 2 November 2010 / Published: 24 November 2010 Show/Hide Abstract | Download PDF Full-text (105 KB) |  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.
	M709 Mohammed Al-Nuri Short Note: Diphenyl(2-propoxyethyl)phosphine Molbank 2010, 2010(4), M709; doi:10.3390/M709 Received: 15 October 2010 / Accepted: 26 November 2010 / Published: 2 December 2010 Show/Hide Abstract | Download PDF Full-text (105 KB) |  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.
	M710 Jasmina Tanatarec, Bozhana Mikova, Gerald Draeger and Emil Popovski Short Note: Tribenzamidomethyl Hydrazine Molbank 2010, 2010(4), M710; doi:10.3390/M710 Received: 26 October 2010 / Accepted: 6 December 2010 / Published: 7 December 2010 Show/Hide Abstract | Download PDF Full-text (136 KB) |  Abstract: A new tribenzamidomethyl hydrazine was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented.
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