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Molbank
Volume 2008
Issue 3
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Molbank, Volume 2008, Issue 3 (November 2008) – 9 articles

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219 KiB  
Short Note
Synthesis of New Schiff Base: 4-[(Pyridin-3-ylmethylene)- amino]phenyldodecanoate
by Sie-Tiong Ha, Lay-Khoon Ong, Yip-Foo Win, Teck-Ming Koh and Guan-Yeow Yeap
Molbank 2008, 2008(3), M582; https://doi.org/10.3390/M582 - 23 Nov 2008
Cited by 20 | Viewed by 6412
Abstract
A new Schiff base 4-[(pyridin-3-ylmethylene)amino]phenyldodecanoate was synthesized via Steglich esterification. IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
189 KiB  
Short Note
Further Aporphine Alkaloids from Phoebe lanceolata
by Deepak K. Semwal, Usha Rawat and G. J. P. Singh
Molbank 2008, 2008(3), M581; https://doi.org/10.3390/M581 - 23 Nov 2008
Cited by 3 | Viewed by 5347
Abstract
Stem bark of Phoebe lanceolata was extracted with ethanol and fractionated with ethyl acetate yielded soluble and insoluble fractions. Ethyl acetate insoluble fraction was subjected to column chromatography afforded two oxalyl-fused didehydroaporphine alkaloids, N-6/C-7 oxalyl-fused 2,9-dihydroxy-1,10-dimethoxy 6a,7-didehydroaporphine and N-6/C-7 oxalyl-fused 1,2,9,10-tetramethoxy 6a,7-didehydroaporphine along [...] Read more.
Stem bark of Phoebe lanceolata was extracted with ethanol and fractionated with ethyl acetate yielded soluble and insoluble fractions. Ethyl acetate insoluble fraction was subjected to column chromatography afforded two oxalyl-fused didehydroaporphine alkaloids, N-6/C-7 oxalyl-fused 2,9-dihydroxy-1,10-dimethoxy 6a,7-didehydroaporphine and N-6/C-7 oxalyl-fused 1,2,9,10-tetramethoxy 6a,7-didehydroaporphine along with well known β-sitosterol and β-sitosterol glucoside. The structures of isolated compounds were elucidated by chemical and spectral analysis. Full article
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155 KiB  
Short Note
Synthesis of 5-benzyl-2,6-dimethylpyridazin-3(2H)-one
by Nour-Eddine Benchat, Abderazak Benalla, Fouad El Kalai, Mohammed Ramdani and Said Daoui
Molbank 2008, 2008(3), M580; https://doi.org/10.3390/M580 - 23 Nov 2008
Cited by 3 | Viewed by 4393
Abstract
Recentely, Rubat et al. [1] synthesized a series of products by alkylation of pyridazines, the authors showed that these products are good analgesics and have a low toxicity.[...] Full article
306 KiB  
Short Note
Determination of the Absolute Configurations of (+)-N-((3S)-3- {[(4-methylphenyl)sulfonyl]amino}-1-oxaspiro[4.5]deca-6,9- dien-2,8-dion-7-yl) Acetamide and Benzamide
by Guy L. Plourde, Lyndia M. Susag and David G. Dick
Molbank 2008, 2008(3), M579; https://doi.org/10.3390/M579 - 7 Nov 2008
Cited by 3 | Viewed by 4758
Abstract
We recently reported the asymmetric synthesis of the two title compounds without the configurational assignments of the newly formed chiral spirocarbons. We now wish to report that both compounds have a (R)-configuration at the spirocarbon based on 1D and 2D nuclear Overhauser enhancement [...] Read more.
We recently reported the asymmetric synthesis of the two title compounds without the configurational assignments of the newly formed chiral spirocarbons. We now wish to report that both compounds have a (R)-configuration at the spirocarbon based on 1D and 2D nuclear Overhauser enhancement (nOe) experiments. Full article
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245 KiB  
Short Note
Synthesis and Characterization of N,N’-(propane-1,2 diyldicarbamothioyl)dibenzamide
by Gülşah Kurt and Bedrettin Mercimek
Molbank 2008, 2008(3), M578; https://doi.org/10.3390/M578 - 7 Nov 2008
Cited by 1 | Viewed by 3626
Abstract
Benzoylthioureas have found some interest due to their biological activity [1], spectroscopic and structural properties [2,3], or as synthetic building blocks [4].[...] Full article
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49 KiB  
Short Note
One-pot Microwave-Assisted Synthesis of 1H-Phenanthro[9,10- d][1,2,3]triazole
by Avat Arman Taherpour and Mehrak Faraji
Molbank 2008, 2008(3), M577; https://doi.org/10.3390/M577 - 4 Sep 2008
Cited by 4 | Viewed by 4922
Abstract
In this study, a fast and good yield one-pot microwave-assisted synthesis (45 seconds) of 1H-phenanthro[9,10-d][1,2,3]triazole by a 1,3-dipolar cycloaddition reaction of sodium azide and 9-bromophenanthrene in the presence of potassium tert-butoxide in DMSO as solvent is reported. Full article
16 KiB  
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3-Dimethylaminomethylene-4-phenyl-1,3-dihydro-2H-1,5- benzodiazepin-2-one
by Abdelouahhab El Rhazi, Abdesselam Baouid, Said Elhazazi, Aicha Boudina and Mohamed Essaber
Molbank 2008, 2008(3), M576; https://doi.org/10.3390/M576 - 4 Sep 2008
Cited by 2 | Viewed by 3746
Abstract
In this paper, we describe a facile and efficient method to prepare compound 2, which had been previously obtained by a Vilsmeier reaction using DMF/POCl3 [1].[...] Full article
22 KiB  
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Synthesis of 5,17,29- tri[(4-methyl-1-piperazinyl)methyl]- 11,23,35-tri-tert-butyl-37,39,41-trimethoxy-calix[6]arene
by Rachid Souane and Jacques Vicens
Molbank 2008, 2008(3), M575; https://doi.org/10.3390/M575 - 4 Sep 2008
Viewed by 3141
Abstract
A calixarene is a macrocycle or cyclic oligomer based on a condensation product of a phenol and an aldehyde [1].[...] Full article
230 KiB  
Short Note
Synthesis of 2,7-Bis(fluoromethyl)naphthalene
by Jane Bogdanov and Przemyslaw Maslak
Molbank 2008, 2008(3), M567; https://doi.org/10.3390/M567 - 22 Aug 2008
Viewed by 3476
Abstract
In connection with our investigation of the competitive mesolytic cleavages [1] of radical anions we have prepared several symmetrically substituted 2,7-bis(halomethyl)naphthalene derivatives.[...] Full article
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