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Molbank, Volume 2011, Issue 2 (June 2011) – 7 articles

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109 KiB  
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1,3-Bis(pyren-1-yl)imidazolium chloride (IPyr·HCl)
by Peter Schroll and Burkhard König
Molbank 2011, 2011(2), M729; https://doi.org/10.3390/M729 - 17 Jun 2011
Viewed by 4834
Abstract
A novel UV-A-light absorbing N-heterocyclic carbene precursor imidazolium salt 2 was synthesized by reaction of 1,4-bis(pyren-1-yl)-1,4-diazadiene 1 with paraformaldehyde in the presence of chlorotrimethylsilane. The title compound was characterized by 1H-NMR, 13C-NMR, 2D-NMR, mass spectrometry, IR and UV/VIS spectroscopy. Full article
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182 KiB  
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8-[2-Chloro-5-(trifluoromethyl)phenyl]-4H-[1,2,4]oxadiazolo-[3,4-c][1,4]benzoxazin-1-one
by Andrey A. Berezin and Panayiotis A. Koutentis
Molbank 2011, 2011(2), M728; https://doi.org/10.3390/M728 - 30 May 2011
Viewed by 4086
Abstract
8-Bromo-4H-[1,2,4]oxadiazolo[3,4-c][1,4]benzoxazin-1-one 1 (NS2028) reacts with [2-chloro-5-(trifluoromethyl)phenyl]boronic acid 2 (2 equiv), Pd(OAc)2 (10 mol%) and KOAc (4 equiv) in acetonitrile heated to ca. 110 °C (sealed tube) for 12 hours to give 8-[2-chloro-5-(trifluoromethyl)phenyl]-4H-[1,2,4]oxadiazolo[3,4-c][1,4]benzoxazin-1-one 4 in 64% yield. Full article
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101 KiB  
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(2E)-3-(4-Dimethylaminophenyl)-1-(2,5-dimethylfuran-3-yl)-prop-2-en-1-one
by Abdullah M. Asiri and Salman A. Khan
Molbank 2011, 2011(2), M727; https://doi.org/10.3390/M727 - 16 May 2011
Cited by 2 | Viewed by 4484
Abstract
The title compound, (2E)-3-(4-dimethylaminophenyl)-1-(2,5-dimethylfuran-3-yl)-prop-2-en-1-one (3) was synthesized in high yield by reaction of 3-acetyl-2,5-dimethylfuran and 4-dimethyl­aminobenzaldehyde in the presence of 30% NaOH solution. The compound was fully characterized from its IR, 1H NMR, 13C NMR, GC-MS data and elemental analysis. Full article
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85 KiB  
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2-(Benzoylamino)-3-(5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)acrylic acid
by Darpan Kaushik, Tarawanti Verma and Kapish Madaan
Molbank 2011, 2011(2), M726; https://doi.org/10.3390/M726 - 11 May 2011
Cited by 3 | Viewed by 4480
Abstract
A novel acrylic acid derivative was synthesized via acid hydrolysis of 4-((5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene)-2-phenyloxazol-5(4H)-one in gl. acetic acid. The structure of the title compound was established on the basis of IR, 1H NMR, 13C-NMR and mass spectral data. Full article
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76 KiB  
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4-[(Anthracen-9-ylmethylene)amino]-1,5-dimethyl-2-phenyl-1,2-dihydropyrazol-3-one
by Abdullah M. Asiri and Salman A. Khan
Molbank 2011, 2011(2), M725; https://doi.org/10.3390/M725 - 9 May 2011
Viewed by 4396
Abstract
The title compound, 4-[(anthracen-9-ylmethylene)amino]-1,5-dimethyl-2-phenyl-1,2-dihydropyrazol-3-one (3), was synthesized in high yield by reaction of anthracene-9-carbaldehyde and 4-aminoantipyrine in ethanol. The structure of this new compound was confirmed by elemental analysis, IR, 1H NMR, 13C NMR and GC-MS spectral data. Full article
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122 KiB  
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4-(3,5-Dibromo-4-hydroxyphenyl)-3-butoxycarbonyl-5-ethoxycarbonyl-2-methyl-6-phenyl-1,4-dihydropyridine
by Zhen Wang and Qingjian Liu
Molbank 2011, 2011(2), M724; https://doi.org/10.3390/M724 - 26 Apr 2011
Cited by 1 | Viewed by 4536
Abstract
One-pot two-step Hantzsch synthesis of 4-(3,5-dibromo-4-hydroxyphenyl)-3- butoxycarbonyl-5-ethoxycarbonyl-2-methyl-6-phenyl-1,4-dihydropyridine under solvent- and catalyst-free conditions promoted with microwave irradiation is presented. Full article
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109 KiB  
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4-{[(4-Fluorophenyl)imino]methyl}-3-hydroxyphenyl 4-(Hexadecanoyloxy)benzoate
by Sie-Tiong Ha, Guan-Yeow Yeap and Peng-Lim Boey
Molbank 2011, 2011(2), M723; https://doi.org/10.3390/M723 - 1 Apr 2011
Viewed by 4931
Abstract
A new Schiff base ester, 4-{[(4-fluorophenyl)imino]methyl}-3-hydroxyphenyl 4-(hexadecanoyloxy)benzoate was synthesized and its IR, 1H NMR, 13C NMR and EI-MS spectroscopic data are presented. Full article
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