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Molbank
Volume 2013
Issue 1
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Molbank, Volume 2013, Issue 1 (March 2013) – 6 articles

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122 KiB  
Short Note
4'-Bromophenyl Triptycene-2,5-diol
by Shimoga D. Ganesh, Karkala V. Pai and Mahadevappa Y. Karidurganavar
Molbank 2013, 2013(1), M796; https://doi.org/10.3390/M796 - 6 Mar 2013
Cited by 1 | Viewed by 3830
Abstract
Diels Alder reaction of 4-bromophenylquinone (Br-PQ) with anthracene, followed by reduction affords the desired 4'-bromophenyl triptycene-2,5-diol (T-Br-PH). The described synthesis represents a simple and efficient method for the construction of a triptycene ring with a bromophenyl pendant. The intermediate and the final compound [...] Read more.
Diels Alder reaction of 4-bromophenylquinone (Br-PQ) with anthracene, followed by reduction affords the desired 4'-bromophenyl triptycene-2,5-diol (T-Br-PH). The described synthesis represents a simple and efficient method for the construction of a triptycene ring with a bromophenyl pendant. The intermediate and the final compound (T-Br-PH) have been characterized by elemental analysis, NMR, and LCMS techniques. Full article
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129 KiB  
Short Note
6,6'-(1E,1'E)-((1R,2R)-1,2-Diphenylethane-1,2-diyl)bis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(2-tert-butyl-4-((trimethylsilyl)ethynyl)phenol)
by Thimo Huber, Lennart Niehues, Carlos Cativiela, M. G. Finn and David Díaz Díaz
Molbank 2013, 2013(1), M795; https://doi.org/10.3390/M795 - 1 Mar 2013
Viewed by 4728
Abstract
Functionalizable salen derivative, 6,6'-(1E,1'E)-((1R,2R)-1,2-diphenylethane-1,2-diyl)bis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(2-tert-butyl-4-((trimethylsilyl) ethyn-yl)phenol) (3), was synthesized by condensation between (1R,2R)-1,2-diphenylethane-1,2-diamine (2) and 3-tert-butyl-2-hydroxy-5-((trimethylsilyl)ethynyl) benzaldehyde (1) under refluxing conditions. The title compound was characterized by 1H-NMR, 13C-NMR, FT-IR, high-resolution mass spectrometry, optical rotation and melting point determination. Full article
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374 KiB  
Short Note
2-(4-Methylpiperazin-1-yl)-4-phenyl-6-(thiophen-2-yl)-pyridine-3-carbonitrile
by Nawal Mishriky and Aisha M. Moustafa
Molbank 2013, 2013(1), M794; https://doi.org/10.3390/M794 - 27 Feb 2013
Cited by 1 | Viewed by 3684
Abstract
2-(4-Methylpiperazin-1-yl)-4-phenyl-6-(thiophen-2-yl)-pyridine-3-carbonitrile (4) was synthesized via nucleophilic substitution reaction of 1-methylpiperazine with 2-bromo analogue 3. The latter was obtained through bromination (Br2/AcOH) of 2-[3-oxo-1-phenyl-3-(thiophen-2-yl)propyl]malononitrile (2). Full article
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71 KiB  
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Benzyl 3-deoxy-3-(3,4,5-trimethoxybenzylamino)-β-L-xylopyranoside
by Fulgentius Nelson Lugemwa
Molbank 2013, 2013(1), M793; https://doi.org/10.3390/M793 - 6 Feb 2013
Viewed by 3315
Abstract
Reaction of 3,4,5-trimethoxybenzylamine and benzyl 2,3-anhydro-β-L-ribopyranoside in refluxing ethanol produced benzyl 3-deoxy-3-(3,4,5-trimethoxybenzylamino)-β-L-xylopyranoside in 72.5% yield. An attempt to synthesize the title compound by reacting neat 3,4,5-trimethoxybenzylamine with benzyl 2,3-anhydro-β-L-ribopyranoside without a solvent produced a dark brown mixture with several decomposition products. The structure [...] Read more.
Reaction of 3,4,5-trimethoxybenzylamine and benzyl 2,3-anhydro-β-L-ribopyranoside in refluxing ethanol produced benzyl 3-deoxy-3-(3,4,5-trimethoxybenzylamino)-β-L-xylopyranoside in 72.5% yield. An attempt to synthesize the title compound by reacting neat 3,4,5-trimethoxybenzylamine with benzyl 2,3-anhydro-β-L-ribopyranoside without a solvent produced a dark brown mixture with several decomposition products. The structure of benzyl 3-deoxy-3-(3,4,5-trimethoxybenzylamino)-β-L-xylopyranoside was determined using elemental analysis, 1H-NMR and 13C-NMR and its conformation is 1C4. Full article
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91 KiB  
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2-[(1-Benzamido-2-methoxy-2-oxoethyl)amino]benzoic Acid
by Mabrouk El Houssine, Elachqar Abdelrhani, El Hallaoui Abdelilah and Alami Anouar
Molbank 2013, 2013(1), M792; https://doi.org/10.3390/M792 - 11 Jan 2013
Cited by 1 | Viewed by 4535
Abstract
The carboxylic α,α-diaminoester 2-[(1-benzamido-2-methoxy-2-oxoethyl) amino]benzoic acid is obtained by N-alkylation of methyl α-azido glycinate N-benzoylated with 2-aminobenzoic acid. Full article
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251 KiB  
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N-(4-(6-(4-nitrophenyl)-4-phenyl-1,3-diazabicyclo[3.1.0]hex-3-ene-2-yl)phenyl)acetamide
by Hamzeh Kiyani and Mahdi Ardyanian
Molbank 2013, 2013(1), M791; https://doi.org/10.3390/M791 - 28 Dec 2012
Cited by 2 | Viewed by 4489
Abstract
As a result of three-component one-pot reaction of trans-2-benzoyl-3-(4-nitrophenyl)aziridine with 4-acetamidobenzaldehyde and ammonium acetate, N-(4-(6-(4-nitrophenyl)-4-phenyl-1,3-diazabicyclo[3.1.0]hex-3-ene-2-yl)phenyl)acetamide was obtained in good yield. The newly synthesized compound exhibit interesting photochromic behavior in the solid and solution state. The structure of the synthesized compound was [...] Read more.
As a result of three-component one-pot reaction of trans-2-benzoyl-3-(4-nitrophenyl)aziridine with 4-acetamidobenzaldehyde and ammonium acetate, N-(4-(6-(4-nitrophenyl)-4-phenyl-1,3-diazabicyclo[3.1.0]hex-3-ene-2-yl)phenyl)acetamide was obtained in good yield. The newly synthesized compound exhibit interesting photochromic behavior in the solid and solution state. The structure of the synthesized compound was confirmed by elemental analysis, 1H-NMR, 13C-NMR and UV-Visible spectral data. Full article
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