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Molbank, Volume 2016, Issue 1 (March 2016)

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Editorial

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Open AccessEditorial Acknowledgement to Reviewers of Molbank in 2015
Molbank 2016, 2016(1), M887; doi:10.3390/M887
Received: 25 January 2016 / Accepted: 25 January 2016 / Published: 25 January 2016
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Abstract
The editors of Molbank would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2015. [...] Full article

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Jump to: Editorial

Open AccessShort Note 1,3-Bis(5′-methyl-4′-phenyl-2′-thiazolylimino)isoindoline
Molbank 2016, 2016(1), M882; doi:10.3390/M882
Received: 9 December 2015 / Revised: 16 December 2015 / Accepted: 17 December 2015 / Published: 23 December 2015
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Abstract
A new sterically hindered isoindoline-based 1,3-bis(5′-methyl-4′-phenyl-2′-thiazolylimino)isoindoline (1) was synthesized by fusion method with satisfyingly good yield. The structure of the newly synthesized compound was identified by FT-IR, UV-Vis, 1H-NMR, 13C-NMR and X-ray analysis. Full article
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Open AccessShort Note Methyl 3-(Quinolin-2-yl)indolizine-1-carboxylate
Molbank 2016, 2016(1), M883; doi:10.3390/M883
Received: 2 December 2015 / Revised: 18 December 2015 / Accepted: 22 December 2015 / Published: 28 December 2015
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Abstract
A novel compound, methyl 3-(quinolin-2-yl)indolizine-1-carboxylate (2) has been synthesized by cycloaddition reaction of 1-(quinolin-2-ylmethyl)pyridinium ylide (1) with methyl propiolate in presence of sodium hydride in THF. The structure of this compound was established by IR, 1H-NMR, 13C-NMR and MS data Full article
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Open AccessShort Note 9-(4-Hydroxybutyl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione
Molbank 2016, 2016(1), M884; doi:10.3390/M884
Received: 16 December 2015 / Revised: 4 January 2016 / Accepted: 5 January 2016 / Published: 12 January 2016
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Abstract
The title compound 9-(4-hydroxybutyl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione was synthesized in 72% yield through a simple, convenient and environmentally friendly one-pot reaction between dimedone and 3,4-dihydro-2H-pyran in aqueous citric acid. Additionally, a plausible reaction mechanism for the formation of the target xanthene is proposed. Full article
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Open AccessShort Note 9-(4-Methoxyquinazolin-2-yl)-9H-purin-6-amine
Molbank 2016, 2016(1), M885; doi:10.3390/M885
Received: 18 December 2015 / Revised: 7 January 2016 / Accepted: 11 January 2016 / Published: 19 January 2016
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Abstract
A novel hybrid consisting of quinazoline and adenine moieties has been synthesized as a precursor of a potential biologically active target compound. The structure of 9-(4-methoxyquinazolin-2-yl)-9H-purin-6-amine (2) was characterized and confirmed using the following spectroscopic methods: LC-UV-MS, 1H-NMR, 13C-NMR and HSQC-NMR. Full article
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Open AccessShort Note Tris(3,7-dihydroxyflavonolate-κO3,O4)chromium(III) Complex
Molbank 2016, 2016(1), M886; doi:10.3390/M886
Received: 7 October 2015 / Revised: 12 January 2016 / Accepted: 19 January 2016 / Published: 22 January 2016
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Abstract
The complex [Cr(3,7diHF)3]·3H2O (3,7diHF is the monoanion of flavonoid 3,7-dihydroxyflavone) was synthetized and characterized by mass spectrometry, thermogravimetry, UV-Vis and FTIR spectroscopies. The data indicated that the coordination of the chromium(III) ion to the flavonoid increased its thermal stability. Full article
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Open AccessShort Note 1-Hydroxy-3-(3-methylbut-2-enyloxy)anthracene-9,10-dione
Molbank 2016, 2016(1), M888; doi:10.3390/M888
Received: 31 December 2015 / Revised: 15 February 2016 / Accepted: 19 February 2016 / Published: 25 February 2016
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Abstract
An anthraquinone derivative, 1-hydroxy-3-(3-methylbut-2-enyloxy)anthracene-9,10-dione (4), has been synthesized in two steps from benzoic acid, 3,5-dihydroxybenzoic acid, and prenylbromide. Full article
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Open AccessShort Note 2,3-Dimethylbenzoxazolium Methosulfate
Molbank 2016, 2016(1), M889; doi:10.3390/M889
Received: 4 February 2016 / Revised: 29 February 2016 / Accepted: 1 March 2016 / Published: 5 March 2016
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Abstract
An economically benign solvent-free approach to synthesise 2,3-dimethylbenzoxazolium methosulfate is reported in the present work. The title compound is derived from 2-methylbenzoxazole reacting with a slight excess of dimethylsulfate, at room temperature. The reaction proceeds via an intrinsic exothermic reaction, and the benzoxazolium
[...] Read more.
An economically benign solvent-free approach to synthesise 2,3-dimethylbenzoxazolium methosulfate is reported in the present work. The title compound is derived from 2-methylbenzoxazole reacting with a slight excess of dimethylsulfate, at room temperature. The reaction proceeds via an intrinsic exothermic reaction, and the benzoxazolium salt crystallized after a short time into a white crystalline form. The product was filtered off and washed with acetone and diethyl ether to provide the desired product in 89% yield. The target compound was evaluated by ESI/MS analysis. Full article
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Open AccessShort Note (S)-4-[(3aR,4S,7aR)-4-Methoxy-6-methyl-3-methylene-2-oxo-2,3,3a,4,7,7a-hexahydrobenzofuran-5-yl]pentyl Acetate
Molbank 2016, 2016(1), M890; doi:10.3390/M890
Received: 7 January 2016 / Revised: 14 March 2016 / Accepted: 14 March 2016 / Published: 18 March 2016
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Abstract
A new etherified 1-O-acetylbritannilactone (ABL) analogue 2 was semi-synthesized by a mild etherification reaction. The structure of the newly synthesized analogue was identified by 1H-NMR, 13C-NMR and HR-ESI-MS analysis. 2 exhibited similar cytotoxicity against HCT116, SGC-7901 and HeLa human
[...] Read more.
A new etherified 1-O-acetylbritannilactone (ABL) analogue 2 was semi-synthesized by a mild etherification reaction. The structure of the newly synthesized analogue was identified by 1H-NMR, 13C-NMR and HR-ESI-MS analysis. 2 exhibited similar cytotoxicity against HCT116, SGC-7901 and HeLa human cancer cell lines with ABL. Full article
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