Next Issue
Volume 2010, June
Previous Issue
Volume 2009, December
 
 

Molbank, Volume 2010, Issue 1 (March 2010) – 22 articles

  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list.
  • You may sign up for e-mail alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.
Order results
Result details
Section
Select all
Export citation of selected articles as:
104 KiB  
Short Note
2-{5-(1,3-Benzodioxol-5-yl)-1-[4-(4-chlorophenyl)-1,3-thiazol-2-yl]-4,5-dihydro-1H-pyrazol-3-yl}pyrazine
by Balapragalathan Thappali Jothikrishnan, Sriram Narasimhan and Suban Syed Shafi
Molbank 2010, 2010(1), M668; https://doi.org/10.3390/M668 - 19 Mar 2010
Cited by 73 | Viewed by 5312
Abstract
A simple method for the synthesis of a pyrazolyl thiazole derivative containing a piperonal moiety was developed. Thus, 2-{5-(1,3-benzodioxol-5-yl)-1-[4-(4-chlorophenyl)-1,3-thiazol-2-yl]-4,5-dihydro-1H-pyrazol-3-yl}pyrazine was synthesized using microwave irradiation and characterized by NMR, IR and LCMS data. Full article
Show Figures

Graphical abstract

125 KiB  
Short Note
5,5'-(1,4-Phenylenedimethylylidene)bis(1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione)
by Abdullah Mohamed Asiri and Salman A. Khan
Molbank 2010, 2010(1), M667; https://doi.org/10.3390/M667 - 17 Mar 2010
Cited by 22 | Viewed by 5962
Abstract
A novel compound, 5,5'-(1,4-phenylenedimethylylidene)bis(1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione) (3) has been synthesized by condensation of 1,3-diethyl-2-thiobarbituric acid and terephthalaldehyde in anhydrous ethanol in the presence of pyridine. The structure of this compound was established by elemental analysis, IR, 1H-NMR, 13C-NMR and EI-MS spectral analysis. Full article
Show Figures

Graphical abstract

51 KiB  
Short Note
5-[(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methylene]-1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione
by Abdullah Mohamed Asiri and Salman A. Khan
Molbank 2010, 2010(1), M666; https://doi.org/10.3390/M666 - 17 Mar 2010
Cited by 22 | Viewed by 6342
Abstract
The title compound, 5-[(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)methylene]-1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione, has been synthesized by condensation of 1,3-diethyl-2-thiobarbituric acid and 3,5-dimethyl-1-phenylpyrazole-4-carbaldehyde in ethanol in the presence of pyridine. The structure of this new compound was confirmed by elemental analysis, IR, 1H-NMR, 13C-NMR and EI-MS spectral analysis. Full article
Show Figures

Graphical abstract

54 KiB  
Short Note
1-{[(3,4-Dimethylisoxazol-5-yl)imino]methyl}-2-naphthol
by Abdullah Mohamed Asiri and Salman A. Khan
Molbank 2010, 2010(1), M665; https://doi.org/10.3390/M665 - 16 Mar 2010
Cited by 12 | Viewed by 6047
Abstract
The title compound, 1-{[(3,4-dimethylisoxazol-5-yl)imino]methyl}-2-naphthol has been synthesized by condensation of 5-amino-3,4-dimethylisoxazole and 2-hydroxy-1-naphthaledhyde in ethanol. The structure of this new compound was confirmed by elemental analysis, IR, 1H-NMR, 13C-NMR and EI-MS spectral analysis. Full article
Show Figures

Graphical abstract

62 KiB  
Short Note
1,3,5-Tris-(2,3-dihydro-1H-1,5-benzodiazepin-4-yl)-1,2,3,4,5,6-hexahydro-s-triazine
by Braulio Insuasty, Angelica Garcia, Rodrigo Abonia, Manuel Nogueras and Justo Cobo
Molbank 2010, 2010(1), M664; https://doi.org/10.3390/M664 - 16 Mar 2010
Cited by 41 | Viewed by 5726
Abstract
A new compound, 1,3,5-tris-(2,3-dihydro-1H-1,5-benzodiazepin-4-yl)-1,2,3,4,5,6-hexahydro-s-triazine was obtained by the reaction of ortho-phenylenediamine 1 with 1,3,5-triacryl-1,2,3,4,5,6-hexahydro-1,3,5-triazine 2. Spectroscopic (IR, 1H-NMR, 13C-NMR and MS) data are supplied to support the proposed structure for the title compound. Full article
Show Figures

Graphical abstract

86 KiB  
Short Note
Luminescent Lariat Aza-Crown Ether Carboxylic Acid
by Andreas Späth, Eva-Maria Rummel and Burkhard König
Molbank 2010, 2010(1), M663; https://doi.org/10.3390/M663 - 12 Mar 2010
Cited by 3 | Viewed by 7458
Abstract
Lariat ethers are interesting recognition motifs in supramolecular chemistry. The synthesis of a luminescent lariat aza-crown ether with a carboxyl group appended by azide-alkyne (Huisgen) cycloaddition is presented. Full article
Show Figures

Graphical abstract

147 KiB  
Short Note
Luminescent Lariat Aza-Crown Ether
by Andreas Späth, Eva-Maria Rummel and Burkhard König
Molbank 2010, 2010(1), M662; https://doi.org/10.3390/M662 - 10 Mar 2010
Cited by 32 | Viewed by 6406
Abstract
Lariat ethers are interesting recognition motifs in supramolecular chemistry. The synthesis of a luminescent lariat ether with triglycol chain by azide–alkyne (Huisgen) cycloaddition is presented. Full article
Show Figures

Graphical abstract

97 KiB  
Short Note
(2-Chlorophenyl)-3-methylchromeno[2,3-c]pyrazol-4(1H)-one
by Giselle Batezila and Wolfgang Holzer
Molbank 2010, 2010(1), M661; https://doi.org/10.3390/M661 - 09 Mar 2010
Cited by 11 | Viewed by 5733
Abstract
The title compound was prepared by treatment of 1-(2-chlorophenyl)-3-methyl-2-pyrazolin-5-one with 2-chlorobenzoyl chloride / Ca(OH)2 in 1,4-dioxane and subsequent cyclization of the thus obtained 4-aroyl-5-hydroxypyrazole with sodium hydride in dry DMF. Detailed spectroscopic data (1H NMR, 13C NMR, 15N [...] Read more.
The title compound was prepared by treatment of 1-(2-chlorophenyl)-3-methyl-2-pyrazolin-5-one with 2-chlorobenzoyl chloride / Ca(OH)2 in 1,4-dioxane and subsequent cyclization of the thus obtained 4-aroyl-5-hydroxypyrazole with sodium hydride in dry DMF. Detailed spectroscopic data (1H NMR, 13C NMR, 15N NMR, IR, MS) are presented. Full article
Show Figures

Graphical abstract

83 KiB  
Short Note
Aza-27-crown-9 Amino Acid
by Andreas Späth and Burkhard König
Molbank 2010, 2010(1), M660; https://doi.org/10.3390/M660 - 04 Mar 2010
Cited by 23 | Viewed by 5979
Abstract
A luminescent aza-27-crown-9 ether amino acid was prepared by a three-step reaction sequence. The compound signals ammonium ion binding by an increase in emission intensity. Full article
Show Figures

Graphical abstract

77 KiB  
Short Note
N-[1-(2,5-Dimethyl-3-thienyl)ethylidene]-1,3-benzothiazol-2-amine
by Abdullah Mohamed Asiri and Salman A. Khan
Molbank 2010, 2010(1), M659; https://doi.org/10.3390/M659 - 03 Mar 2010
Cited by 11 | Viewed by 6093
Abstract
The title compound, N-[1-(2,5-dimethyl-3-thienyl)ethylidene]-1,3-benzothiazol-2-amine has been synthesized by condensation of 2-aminobenzothiazole and 3-acetyl-2,5-dimethylthiophene in ethanol. The structure of this new compound was confirmed by elemental analysis, IR, 1H-NMR, 13C-NMR and EI-MS spectral analysis. Full article
Show Figures

Graphical abstract

121 KiB  
Short Note
(Benzoylamino)methyl 4-Hydroxybenzoate
by Emil Popovski and Kristina Mladenovska
Molbank 2010, 2010(1), M658; https://doi.org/10.3390/M658 - 25 Feb 2010
Cited by 32 | Viewed by 5915
Abstract
(Benzoylamino)methyl 4-hydroxybenzoate (“Benzamidomethylparaben”) (3) was obtained from a reaction of 4-hydroxybenzoic acid (2) with a dioxane suspension of (benzamidomethyl)triethylammonium chloride (1). The phenolic group in 2 cannot be benzamidomethylated with 1 in aqueous media. Full article
Show Figures

Scheme 1

63 KiB  
Short Note
5-Methyl-4-oxo-4,6-dihydro-3H-pyridazino[4,5-b]carbazole-1-carbonitrile
by Miriam Emich and Norbert Haider
Molbank 2010, 2010(1), M657; https://doi.org/10.3390/M657 - 03 Feb 2010
Cited by 18 | Viewed by 4955
Abstract
The title compound was prepared in excellent yield from 5-methyl-4-oxo-4,6-dihydro-3H-pyridazino[4,5-b]carbazole-1-carbaldehyde by treatment with hydroxylamine hydrochloride in formic acid without isolation of the intermediate oxime. Full article
69 KiB  
Short Note
Manganese 5,10,15,20-Tetra(N-ethyl-3-carbazolyl) Porphyrin
by Cynthia Pruitt Tidwell, L. Dalila Fondren and David E. Nikles
Molbank 2010, 2010(1), M656; https://doi.org/10.3390/M656 - 29 Jan 2010
Cited by 11 | Viewed by 5532
Abstract
Manganese complex of 5,10,15,20-tetra(N-ethyl-3-carbazolyl) porphyrin was synthesized and characterized by electronic absorption spectrophotometry and cyclic voltammetry. The spectral data were in agreement with the proposed structure. The manganese complex exhibited a shift in the Soret band in comparison to the non-metallated [...] Read more.
Manganese complex of 5,10,15,20-tetra(N-ethyl-3-carbazolyl) porphyrin was synthesized and characterized by electronic absorption spectrophotometry and cyclic voltammetry. The spectral data were in agreement with the proposed structure. The manganese complex exhibited a shift in the Soret band in comparison to the non-metallated porphyrin and the extinction coefficient for the Soret band was on the order of 105 cm-1M-1. Trends observed in the oxidation and reduction potentials were consistent with the nature of the porphyrin. That is, the electron donating group in 5,10,15,20-tetra(N-ethyl-3-carbazolyl) porphyrin enhances oxidation and inhibits reduction. Full article
Show Figures

Graphical abstract

231 KiB  
Short Note
Ethyl 2-[(Z)-2-(4-Cyanophenyl)-2-hydroxyvinyl]-4-(4-methoxyphenyl)-6-methyl-1,4-dihydropyrimidine-5-carboxylate
by Sukhdeep Singh, Andreas Schober and Gregor Alexander Groß
Molbank 2010, 2010(1), M655; https://doi.org/10.3390/M655 - 29 Jan 2010
Cited by 11 | Viewed by 5466
Abstract
A one-pot, two-step method has been developed for the synthesis of ethyl 2-[(Z)-2-(4-cyanophenyl)-2-hydroxyvinyl]-4-(4-methoxyphenyl)-6-methyl-1,4-dihydropyrimidine-5-carboxylate, including a sulfide contraction step utilizing solution and solid phase synthesis Full article
Show Figures

Scheme 1

152 KiB  
Short Note
1-[4-[Bis(2-chloroethyl)amino]benzyl]-5,5-dimethyl-2,5-dihydro-4H-benzo[e]isoindol-4-one (Cytotoxic Oxonaphthalene-pyrroles, Part II)
by Helmut Spreitzer and Christiane Puschmann
Molbank 2010, 2010(1), M654; https://doi.org/10.3390/M654 - 29 Jan 2010
Cited by 190 | Viewed by 4898
Abstract
A bis(chloroethyl)amine-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
98 KiB  
Short Note
4,6-Diamino-5-(4-methylbenzylidene)pyrimidin-2(5H)-one
by Gricela Lobo, Jaime Charris, Margaret Valderrama, Jesús Romero, Cristina Castelli and Antonieta Taddei
Molbank 2010, 2010(1), M653; https://doi.org/10.3390/M653 - 27 Jan 2010
Cited by 114 | Viewed by 5565
Abstract
A new compound, 4,6-diamino-5-(methylbenzylidene)pyrimidin-2(5H)-one, was synthesized and its IR, 1H NMR,13C NMR and MS spectroscopic data are presented. Full article
68 KiB  
Short Note
6-Oxo-3-phenyl-5,6-dihydropyridazine-1(4H)-carbohydrazide
by Ravinesh Mishra, Anees Ahmad Siddiqui, Rajiv Kumar and Suresh Kumar
Molbank 2010, 2010(1), M652; https://doi.org/10.3390/M652 - 26 Jan 2010
Cited by 50 | Viewed by 5652
Abstract
We report herein the synthesis of 6-oxo-3-phenyl-5,6-dihydropyridazine-1(4H)-carbohydrazide from β-benzoylpropionic acid and carbohydrazide by refluxing in absolute ethanol in presence of sodium acetate. The structure of the newly synthesized compound was established on the basis of IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
Show Figures

Graphical abstract

77 KiB  
Short Note
2-[4-[Bis(2-chloroethyl)amino]benzyl]-5,5-dimethyl-2,5-dihydro-4H-benzo[e]isoindol-4-one (Cytotoxic Oxonaphthalene-Pyrroles, Part I)
by Helmut Spreitzer and Christiane Puschmann
Molbank 2010, 2010(1), M651; https://doi.org/10.3390/M651 - 22 Jan 2010
Cited by 30 | Viewed by 4777
Abstract
A bis(chloroethyl)amine containing side chain is attached to an oxonaphthalene-annelated pyrrol in expectation of DNA alkylating properties. The cytotoxicity is evaluated against two cell lines, KB-31 and KB-8511, respectively. Full article
109 KiB  
Short Note
5-(3-Nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazole-1-carbaldehyde
by Pramod Singh, Jagmohan S. Negi, Geeta Joshi nee Pant and Mohan S.M. Rawat
Molbank 2010, 2010(1), M650; https://doi.org/10.3390/M650 - 22 Jan 2010
Cited by 30 | Viewed by 5984
Abstract
A novel 1-formyl-2-pyrazoline was synthesized by reaction of an α,β- unsaturated ketone with hydrazine hydrate and formic acid. The structure of the title compound was established by UV, IR, 1H NMR, 13C NMR and microanalysis. Full article
Show Figures

Scheme 1

182 KiB  
Short Note
2-(4-Pyridyl)-1,3-di(4-picolyl)imidazolidine
by Beyhan Yiğit, Murat Yiğit, İsmail Özdemir, Bekir Çetinkaya and Engin Çetinkaya
Molbank 2010, 2010(1), M649; https://doi.org/10.3390/M649 - 22 Jan 2010
Cited by 8 | Viewed by 5747
Abstract
The title compound was prepared by treatment of N,N’-di(4-picolyl¬amino)ethane with N,N-dimethylformamide dimethylacetal in toluene and it was characterized by elemental analysis, 1H NMR and 13C NMR. Full article
Show Figures

Scheme 1

155 KiB  
Short Note
3-Methyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylic Acid
by Sembian Ruso Jayaraman, Madhavan Sridharan and Rajendiran Nagappan
Molbank 2010, 2010(1), M648; https://doi.org/10.3390/M648 - 06 Jan 2010
Cited by 25 | Viewed by 5497
Abstract
3-Methyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylic acid was synthesized chemoselectively from 3-formyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylic acid, using Et3SiH/I2 as a reducing agent. The title compound was characterized by IR, 1H NMR, 13C NMR and LCMS. Full article
Show Figures

Scheme 1

57 KiB  
Short Note
1-(6-Ethoxy-6-oxohexyl)-4-methylquinolinium Iodide
by Angela Winstead and Stanley Oyaghire
Molbank 2010, 2010(1), M647; https://doi.org/10.3390/M647 - 25 Dec 2009
Cited by 28 | Viewed by 5299
Abstract
The N-ethoxycarbonylhexyl quaternary salt of lepidine has been synthesized in one step in 56% yield. 1H and 13C NMR data are reported. Full article
Show Figures

Scheme 1

Previous Issue
Next Issue
Back to TopTop