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Molbank, Volume 2008, Issue 3 (November 2008)

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Open AccessShort Note Synthesis of 5,17,29- tri[(4-methyl-1-piperazinyl)methyl]- 11,23,35-tri-tert-butyl-37,39,41-trimethoxy-calix[6]arene
Molbank 2008, 2008(3), M575; doi:10.3390/M575
Received: 23 July 2008 / Revised: 2 September 2008 / Accepted: 4 September 2008 / Published: 4 September 2008
PDF Full-text (22 KB) | Supplementary Files
Open AccessShort Note 3-Dimethylaminomethylene-4-phenyl-1,3-dihydro-2H-1,5- benzodiazepin-2-one
Molbank 2008, 2008(3), M576; doi:10.3390/M576
Received: 23 July 2008 / Accepted: 27 August 2008 / Published: 4 September 2008
PDF Full-text (16 KB) | Supplementary Files
Open AccessShort Note One-pot Microwave-Assisted Synthesis of 1H-Phenanthro[9,10- d][1,2,3]triazole
Molbank 2008, 2008(3), M577; doi:10.3390/M577
Received: 28 July 2008 / Accepted: 1 September 2008 / Published: 4 September 2008
PDF Full-text (49 KB) | Supplementary Files
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
Open AccessShort Note Synthesis and Characterization of N,N’-(propane-1,2 diyldicarbamothioyl)dibenzamide
Molbank 2008, 2008(3), M578; doi:10.3390/M578
Received: 9 September 2008 / Accepted: 3 November 2008 / Published: 7 November 2008
PDF Full-text (245 KB) | Supplementary Files
Open AccessShort 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
Molbank 2008, 2008(3), M579; doi:10.3390/M579
Received: 18 September 2008 / Accepted: 3 November 2008 / Published: 7 November 2008
PDF Full-text (306 KB) | Supplementary Files
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
Open AccessShort Note Synthesis of 5-benzyl-2,6-dimethylpyridazin-3(2H)-one
Molbank 2008, 2008(3), M580; doi:10.3390/M580
Received: 11 September 2008 / Accepted: 5 November 2008 / Published: 23 November 2008
PDF Full-text (155 KB) | Supplementary Files
Open AccessShort Note Further Aporphine Alkaloids from Phoebe lanceolata
Molbank 2008, 2008(3), M581; doi:10.3390/M581
Received: 30 September 2008 / Accepted: 6 November 2008 / Published: 23 November 2008
Cited by 1 | PDF Full-text (189 KB) | Supplementary Files
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
Open AccessShort Note Synthesis of New Schiff Base: 4-[(Pyridin-3-ylmethylene)- amino]phenyldodecanoate
Molbank 2008, 2008(3), M582; doi:10.3390/M582
Received: 16 November 2008 / Accepted: 21 November 2008 / Published: 23 November 2008
Cited by 9 | PDF Full-text (219 KB) | Supplementary Files
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

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