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Molbank, Volume 2011, Issue 3 (September 2011)

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Open AccessShort Note 2,3-Diaminophenazine
Molbank 2011, 2011(3), M730; doi:10.3390/M730
Received: 14 April 2011 / Accepted: 16 May 2011 / Published: 18 July 2011
Cited by 6 | PDF Full-text (254 KB) | Supplementary Files
Abstract
Herein, we synthesized 2,3-diaminophenazine (DAP) from o-phenylenediamine (OP) using fungal laccase as a biocatalyst. The conversion ratio of OP monomer was 85% and the yield of the final purified product, DAP, was 63%. The structure of the main product, DAP, was confirmed by
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Herein, we synthesized 2,3-diaminophenazine (DAP) from o-phenylenediamine (OP) using fungal laccase as a biocatalyst. The conversion ratio of OP monomer was 85% and the yield of the final purified product, DAP, was 63%. The structure of the main product, DAP, was confirmed by using several spectroscopy techniques (UV-VIS, IR, 2D-NMR, and MS). Full article
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Open AccessShort Note N-[1-(1H-Benzimidazol-2-yl)-2-(5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)vinyl]benzamide
Molbank 2011, 2011(3), M731; doi:10.3390/M731
Received: 20 May 2011 / Accepted: 16 July 2011 / Published: 25 July 2011
PDF Full-text (155 KB) | Supplementary Files
Abstract
A novel benzimidazole derivative (2) was synthesized by hydrolyzing 4-[(5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-2-phenyloxazol-5(4H)-one (1), the azlactone precursor in an acidic medium and treating the product with o-phenylenediamine (OPDA) in situ. The structure of the title compound (2) was
[...] Read more.
A novel benzimidazole derivative (2) was synthesized by hydrolyzing 4-[(5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-2-phenyloxazol-5(4H)-one (1), the azlactone precursor in an acidic medium and treating the product with o-phenylenediamine (OPDA) in situ. The structure of the title compound (2) was established on basis of FT-IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
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Open AccessShort Note 4-{[(4-Iodophenyl)imino]methyl}phenyl Octadecanoate
Molbank 2011, 2011(3), M732; doi:10.3390/M732
Received: 6 June 2011 / Accepted: 8 August 2011 / Published: 10 August 2011
PDF Full-text (91 KB) | Supplementary Files
Abstract A new Schiff base ester, 4-{[(4-iodophenyl)imino]methyl}phenyl octadecanoate was synthesized and its IR, 1H NMR, 13C NMR and EI-MS spectroscopic data are presented. Full article
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Open AccessShort Note 5-[(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-2-(4-nitrobenzoyl)-3-phenyl-2,5-dihydro-1,2,4-triazin-6(1H)-one
Molbank 2011, 2011(3), M733; doi:10.3390/M733
Received: 12 May 2011 / Accepted: 5 August 2011 / Published: 11 August 2011
PDF Full-text (134 KB) | Supplementary Files
Abstract
A novel 1,2,4-triazin-6-one derivative (2) was synthesized by the reaction of the oxazolone derivative 1 with 4-nitrobenzoic acid hydrazide in the presence of sodium acetate and glacial acetic acid. The title compound 2 was characterized on basis of IR, 1H-NMR,
[...] Read more.
A novel 1,2,4-triazin-6-one derivative (2) was synthesized by the reaction of the oxazolone derivative 1 with 4-nitrobenzoic acid hydrazide in the presence of sodium acetate and glacial acetic acid. The title compound 2 was characterized on basis of IR, 1H-NMR, 13C-NMR and mass spectral data. Full article
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Open AccessShort Note 3-Chloro-N'-(2-hydroxy-4-pentadecylbenzylidene) benzothiophene-2-carbohydrazide
Molbank 2011, 2011(3), M734; doi:10.3390/M734
Received: 22 June 2011 / Accepted: 3 August 2011 / Published: 1 September 2011
PDF Full-text (75 KB) | Supplementary Files
Abstract The title compound, 3-chloro-N'-(2-hydroxy-4-pentadecylbenzylidene)­benzo[b]thiophene-2-carbohydrazide has been synthesized by reaction of 2-hydroxy-4-pentadecylbenzaldehyde with 3-chloro-1-benzo[b]thiophene-2-carboxylic acid hydrazide in the presence of acetic acid in ethanol. The structure of this new compound was confirmed by elemental analysis, IR, 1H-NMR, 13C-NMR and mass spectral analysis. Full article
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Open AccessShort Note 4-({[4-(Methylthio)phenyl]methylene}amino)phenyl Dodecanoate
Molbank 2011, 2011(3), M735; doi:10.3390/M735
Received: 13 July 2011 / Accepted: 6 September 2011 / Published: 9 September 2011
PDF Full-text (169 KB) | Supplementary Files
Abstract A new Schiff base ester, 4-({[4-(methylthio)phenyl]methylene}amino)phenyl dodecanoate was synthesized and its IR, 1H NMR, 13C NMR and EI-MS spectroscopic data are presented. Full article
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Open AccessShort Note Anthracen-9-ylmethylene-(3,4-dimethylisoxazol-5-yl)amine
Molbank 2011, 2011(3), M736; doi:10.3390/M736
Received: 8 September 2011 / Accepted: 13 September 2011 / Published: 13 September 2011
PDF Full-text (87 KB) | Supplementary Files
Abstract The title compound, anthracen-9-ylmethylene-(3,4-dimethylisoxazol-5-yl)amine (3), was synthesized in high yield by reaction of anthracene-9-carbaldehyde and 5-amino-3,4-dimethyl­isoxazole in ethanol. The structure of this new compound was confirmed by elemental analysis, IR, 1H NMR, 13C NMR and GC-MS spectral analysis. Full article
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Open AccessShort Note 2-tert-Butyl-5,6,7,8,9,10-hexahydrocyclohepta[b]indole
Molbank 2011, 2011(3), M737; doi:10.3390/M737
Received: 17 August 2011 / Accepted: 20 September 2011 / Published: 21 September 2011
Cited by 3 | PDF Full-text (107 KB) | Supplementary Files
Abstract 2-tert-Butyl-5,6,7,8,9,10-hexahydrocyclohepta[b]indole was synthesized by reaction of cycloheptanone and (4-tert-butylphenyl)hydrazine hydrochloride in the presence of sodium acetate and sulfuric acid in glacial acetic acid via Fischer indole synthesis. Full article
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Open AccessShort Note 4-{[(4-Methylphenyl)imino]methyl}-3-hydroxyphenyl 4-(Hexadecanoyloxy)benzoate
Molbank 2011, 2011(3), M738; doi:10.3390/M738
Received: 12 July 2011 / Accepted: 21 September 2011 / Published: 23 September 2011
PDF Full-text (86 KB) | Supplementary Files
Abstract A new Schiff base, 4-{[(4-methylphenyl)imino]methyl}-3-hydroxyphenyl 4-(hexadecanoyloxy)benzoate was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
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