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Table of Contents

Molecules, Volume 11, Issue 12 (December 2006), Pages 940-1014

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	p. 940-952 Ana C. Coelho, Filipe A. Almeida Paz, Jacek Klinowski, Martyn Pillinger and Isabel S. Gonçalves Article: Microwave Assisted Synthesis of Molybdenum and Tungsten Tetracarbonyl Complexes with a Pyrazolylpyridine Ligand. Crystal structure of cis-[Mo(CO)4{ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate}] Molecules 2006, 11(12), 940-952; doi:10.3390/11120940 Received: 17 November 2006; in revised form: 4 December 2006 / Accepted: 5 December 2006 / Published: 6 December 2006 Show/Hide Abstract | Download PDF Full-text (391 KB) Abstract: We report the one-step syntheses in good yields of the complexes cis-[M(CO)4(pzpy)] {M = Mo, W; pzpy = ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate} directlyfrom the corresponding M(CO)6 starting materials by using microwave-assisted heatingand reaction times of either 30 s (M = Mo) or 15 min (M = W). The structure of themolybdenum tetracarbonyl complex was determined by single crystal X-ray diffraction.The compound is monomeric and the molybdenum atom has a highly distorted octahedralgeometry. The close packing of the individual cis-[Mo(CO)4(pzpy)] species is essentiallydriven by the need to fill the space effectively, closely mediated by weak C–H···O andπ···π interactions.
	p. 953-958 Fang Liu, Jing-wie He, Zheng-mei Lin, Jun-qi Ling and De-min Jia Communication: Synthesis and Characterization of Dimethacrylate Monomer with High Molecular Weight for Root Canal Filling Materials Molecules 2006, 11(12), 953-958; doi:10.3390/11120953 Received: 18 November 2006; in revised form: 4 December 2006 / Accepted: 4 December 2006 / Published: 7 December 2006 Show/Hide Abstract | Download PDF Full-text (48 KB) Abstract: A new dimethacrylate monomer 9,9'-bis[4-(2'-hydroxy-3'-methacryloyloxy-propoxy)phenyl] fluorene (3) with a molecular weight of 634 was synthesized in 51.4%yield by addition of a glycidyl ether group to 9,9'-bis(4-hydroxyphenyl) fluorene (1) bythe reaction of compound 1 with epichlorohydrin, and then introducing the methacrylatemoiety by the reaction of the epoxy group with methacrylic acid. The structure ofmonomer 3 was confirmed by FT-IR, 1H-NMR, mass spectra and elemental analysis.
	p. 959-967 D. Díez, M. G. Nuñez, R. F. Moro, N. M. Garrido, I. S. Marcos, P. Basabe and J. G. Urones Article: Synthesis of (R)-2-(Benzyloxy)-tetrahydro-5,5-dimethylfuran by a New Oxidative Rearrangement Molecules 2006, 11(12), 959-967; doi:10.3390/11120959 Received: 12 November 2006; in revised form: 12 December 2006 / Accepted: 15 December 2006 / Published: 18 December 2006 Show/Hide Abstract | Download PDF Full-text (74 KB) Abstract: The rearrangement under oxidative conditions of 3-(benzyloxy)-tetrahydro- 2,6,6-trimethyl-2H-pyran-2-carbaldehydes to afford a chiral protected tetrahydrofuran lactol is described.
	p. 968-977 Mario Sechi, Fabio Casu, Ilaria Campesi, Stefano Fiori and Alberto Mariani Communication: Hyperbranched Molecular Structures with Potential Antiviral Activity: Derivatives of 5,6-Dihydroxyindole-2-Carboxylic Acid Molecules 2006, 11(12), 968-977; doi:10.3390/11120968 Received: 25 October 2006; in revised form: 8 December 2006 / Accepted: 15 December 2006 / Published: 18 December 2006 Show/Hide Abstract | Download PDF Full-text (61 KB) Abstract: In the search of new HIV-1 integrase (IN) inhibitors, we synthesized a series of multimeric 5,6-dihydroxyindole-2-carboxylic acid (DHICA) derivatives. Preliminary results indicate that hyperbranched architectures could represent a peculiar molecular requisite for the development of new antiviral lead compounds.
	p. 978-987 Xianghua Yang, Chanjuan Xi and Yanfeng Jiang Article: CuCl2-catalyzed One-pot Formation of Tetrahydroquinolines from N-Methyl-N-alkylanilines and Vinyl Ethers in the Presence of t-Butylhydroperoxide Molecules 2006, 11(12), 978-987; doi:10.3390/11120978 Received: 6 October 2006; in revised form: 12 December 2006 / Accepted: 15 December 2006 / Published: 20 December 2006 Show/Hide Abstract | Download PDF Full-text (81 KB) Abstract: Tetrahydroquinoline skeletons can be formed by a CuCl2-catalyzed one-potreaction of N-methyl-N-alkylanilines and vinyl ethers in the presence of t-butyl-hydroperoxide.
	p. 988-999 Li Zhang, Beiying Qiu, Xin Li, Xin Wang, Jingya Li, Yongliang Zhang, Jian Liu, Jia Li and Jingkang Shen Article: Preparation of 6-Substituted Quinoxaline JSP-1 Inhibitors by Microwave Accelerated Nucleophilic Substitution Molecules 2006, 11(12), 988-999; doi:10.3390/11120988 Received: 27 November 2006; in revised form: 17 December 2006 / Accepted: 18 December 2006 / Published: 21 December 2006 Show/Hide Abstract | Download PDF Full-text (93 KB) Abstract: A small library of 6-aminoquinoxalines has been prepared by nucleophilic substitution of 6-fluoroquinoxaline with amines and nitrogen-containing heterocycles under computer-controlled microwave irradiation. Some compounds were found to be potent inhibitors of JNK Stimulatory Phosphatase-1 (JSP-1) in an in vitro biological assay.
	p. 1000-1008 Sreedasyam Jagannatha Swamy, Erra Ram Reddy, Devunuri Naga Raju and Sunkari Jyothi Article: Synthesis and Spectral Investigations of Manganese(II), Cobalt(II), Nickel(II), Copper(II) and Zinc(II) Complexes of New Polydentate Ligands Containing a 1,8-Naphthyridine Moiety Molecules 2006, 11(12), 1000-1008; doi:10.3390/11121000 Received: 14 November 2006; in revised form: 12 December 2006 / Accepted: 17 December 2006 / Published: 21 December 2006 Show/Hide Abstract | Download PDF Full-text (80 KB) Abstract: 2-(o-Hydroxyphenyl)-1,8-naphthyridine (HN), 2-(4-hydroxy-6-methylpyran-2-one-3-yl)-1,8-naphthyridine (HMPN) and 2-(benzimidazol-2-yl)-1,8-naphthyridine(BN) react with acetates of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) to yield metal ioncomplexes of definite composition. These compounds were characterized by elementalanalyses, molar conductivity, magnetic susceptibility measurements, thermal studies, IR,UV-visible, NMR and mass spectral investigations. The complexes are found to have theformulae [M(HN)2(H2O)2], [M(HMPN)2(H2O)2] and [M(BN)2(OAc)2], respectively.
	p. 1009-1014 Lang-Ping Dong, Wei Ni, Jin-Yang Dong, Jun-Zhu Li, Chang-Xiang Chen and Hai-Yang Liu Communication: A New Neolignan Glycoside from the Leaves of Acer truncatum Molecules 2006, 11(12), 1009-1014; doi:10.3390/11121009 Received: 18 October 2006; in revised form: 27 November 2006 / Accepted: 28 November 2006 / Published: 21 December 2006 Show/Hide Abstract | Download PDF Full-text (95 KB) Abstract: A new neolignan glycoside, (7R,8R)-7,8-dihydro-9′-hydroxyl-3′-methoxyl- 8-hydroxymethyl-7-(4-hydroxy-3-methoxyphenyl)-1′-benzofuranpropanol 9′-O-β-D- glucopyranoside (1) was isolated from the leaves of Acer truncatum along with (7R,8R)-7,8-dihydro-9′-hydroxyl-3′-methoxyl-8-hydroxymethyl-7-(4-O-α-L-rhamno- pyranosyloxy-3-methoxyphenyl)-1′-benzofuranpropanol (2), schizandriside (3), lyoniresinol (4), berchemol (5), (-)-pinoresinol-4-O-β-D-glucopyranoside (6), hecogenin (7), chlorogenic acid (8) and neochlorogenic acid (9). Their structures were elucidated on the basis of extensive spectroscopic data. The absolute configuration of compounds 1 was established by its CD spectrum. The antibacterial activities of compounds 1-7 were evaluated.
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