Org. and Biomol. Chem.

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Reaction of [small beta]-Enaminones and Acetylene Dicarboxylates: Synthesis of Substituted 1,2-Dihydropyridinones

21 January, 2015 - 06:54
Org. Biomol. Chem., 2015, Accepted Manuscript
DOI: 10.1039/C4OB01578A, PaperGalla venkata karunakar, Nagaraju Vemu, Purnachander Dalovai, Suresh Surisetti, Sridhar Balasubramanian, Mangina Rao N. S. V. M.
Synthesis of substituted 1,2-dihydropyridinones is described in one pot reaction of [small beta]-enaminones and acetylene dicarboxylates where new C-C and C-N bonds were formed. The title compounds were obtained in moderate...
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P-stereogenic PNP pincer-Pd catalyzed intramolecular hydroamination of amino-1,3-dienes

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02402H, PaperZehua Yang, Chao Xia, Delong Liu, Yangang Liu, Masashi Sugiya, Tsuneo Imamoto, Wanbin Zhang
A new P-stereogenic PNP pincer-Pd complex was readily prepared and was used in the asymmetric intramolecular hydroamination of amino-1,3-dienes, with the desired products being obtained in good yields and with excellent regioselectivities and up to moderate enantioselectivities.
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Formamidine hydrochloride as an amino surrogate: I2-catalyzed oxidative amidation of aryl methyl ketones leading to free (N-H) [small alpha]-ketoamides

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02591A, CommunicationShan Liu, Qinghe Gao, Xia Wu, Jingjing Zhang, Kerong Ding, Anxin Wu
A highly efficient molecular iodine catalyzed oxidative amidation of aryl methyl ketones has been developed. This reaction represents a novel strategy for the synthesis of free (N-H) [small alpha]-ketoamides.
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Byproduct promoted regioselective sulfenylation of indoles with sulfinic acids

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02575J, CommunicationCong-Rong Liu, Liang-Hui Ding
An unprecedented method to synthesise 3-sulfenylindoles is demonstrated via byproduct promoted sulfenylation of indoles with sulfinic acids.
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A novel enantioselective synthesis of 6H-dibenzopyran derivatives by combined palladium/norbornene and cinchona alkaloid catalysis

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02551B, CommunicationDi Xu, Li Dai, Marta Catellani, Elena Motti, Nicola Della Ca', Zhiming Zhou
Chiral dibenzopyran derivatives were obtained by cinchona alkaloid, as organocatalyst, in combination, for the first time, with palladium/norbornene catalytic system.
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Molecular motion of donor-acceptor catenanes in water

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02457E, PaperFabien B. L. Cougnon, Nandhini Ponnuswamy, G. Dan Pantos, Jeremy K. M. Sanders
In this article, we use 1H NMR spectroscopy to study the spontaneous molecular motion of donor-acceptor [2]catenanes in water.
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A benzyl alcohol derivative of the BDPA radical for fast dissolution dynamic nuclear polarization NMR spectroscopy

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02356K, PaperJ. L. Munoz-Gomez, E. Monteagudo, V. Lloveras, T. Parella, J. Veciana, J. Vidal-Gancedo
A pyruvic acid soluble BDPA derivative, BA-BDPA, is a promising candidate as a polarizing agent for in vivo DNP.
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A novel Prins cascade process for the stereoselective synthesis of oxa-bicycles

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02347A, PaperB. V. Subba Reddy, A. Venkateswarlu, B. Sridevi, Kanakaraju Marumudi, A. C. Kunwar, G. Gayatri
E- and Z-9-Methyldeca-3,8-dien-1-ols undergo smooth cyclization with aldehydes in the presence of 20 mol% AgSbF6 under extremely mild conditions to generate the corresponding oxa-bicycles in good yields with excellent selectivity.
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Configurational and Conformational Study of (-)-Oseltamivir Using a Multi-Chiroptical Approach

21 January, 2015 - 06:54
Org. Biomol. Chem., 2015, Accepted Manuscript
DOI: 10.1039/C4OB02369B, PaperMarcin Gorecki
To better understand structure-activity relationship (SAR) results, closely related to the structural features of (-)-Oseltamivir, four chiroptical methods, i.e. electronic circular dichroism (ECD), optical rotatory dispersion (ORD), vibrational circular dichroism...
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Direct construction of 2-alkylbenzo-1,3-azoles via C-H activation of alkanes for C-C and C-X (X = O, S) bond formation

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02488E, PaperArvind K. Yadav, Lal Dhar S. Yadav
2-Alkylated benzo(oxa)thiazoles were prepared directly from simple alkanes and aryl isocyanates/isothiocyanates in a one-pot procedure.
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Phototriggerable peptidomimetics for the inhibition of Mycobacterium tuberculosis ribonucleotide reductase by targeting protein-protein binding

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB01926A, PaperChristoffer Karlsson, Magnus Blom, Miranda Johansson (nee Varedian), Anna M. Jansson, Enzo Scifo, Anders Karlen, Thavendran Govender, Adolf Gogoll
Peptidomimetic inhibitors with photomodulable affinity for the R1-R2 subunit association site were designed based on the R2-subunit C-terminal.
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Synthesis of imidazoles via cascade reaction of nitroallylic acetates with amidines and studies on their trypanocidal activity

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02561J, CommunicationTarun Kumar, Deepti Verma, Rubem F. S. Menna-Barreto, Wagner O. Valenca, Eufranio N. da Silva Junior, Irishi N. N. Namboothiri
Functionalized imidazoles derived from nitroallylic acetates and amidines exhibit potent activity against T. cruzi, the etiological agent of Chagas disease.
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Contrasting anion recognition behaviour exhibited by halogen and hydrogen bonding rotaxane hosts

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02547D, PaperStuart P. Cornes, Charles H. Davies, David Blyghton, Mark R. Sambrook, Paul D. Beer
A [2]rotaxane anion host that switches selectivity from dihydrogen phosphate to the halides upon substituting a hydrogen bond donor group for a halogen bond donor group within the axle component is described.
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Sweetness and light: design and applications of photo-responsive glycoconjugates

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02296C, Review ArticleYingxue Hu, Rico F. Tabor, Brendan L. Wilkinson
Photoswitchable glycoconjugates are promising tools for studying biomolecular interactions and for the development of stimuli-responsive materials.
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Synthesis of 4-substituted oxazolo[4,5-c]quinolines by direct reaction at the C-4 position of oxazoles

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02224F, PaperMahesh Akula, Yadagiri Thigulla, Connor Davis, Mukund Jha, Anupam Bhattacharya
Cu(TFA)2 catalysed synthesis of 4-arylsubstituted oxazolo[4,5-c]quinolines/[1,8] naphthyridines has been described via a modified Pictet-Spengler method, without prefunctionalization of the unreactive 4th position of oxazoles.
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Tandem catalytic oxidative deacetylation of acetoacetic esters and heteroaromatic cyclizations

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02441A, PaperYeming Ju, Di Miao, Ruiyang Yu, Sangho Koo
Coupling of ethyl acetoacetate with MVK and with 2-nitrobenzyl bromides, Mn(III)/Co(II)-catalyzed deacetylation, and heterocyclizations provide pyrroles and indoles, respectively.
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A review: microRNA detection methods

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02104E, Review ArticleTian Tian, Jiaqi Wang, Xiang Zhou
MicroRNA (miRNA) detection is of considerable significance in both disease diagnosis and in the study of miRNA function.
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Luminescent organogels based on triphenylamine functionalized [small beta]-diketones and their difluoroboron complexes

21 January, 2015 - 06:54
Org. Biomol. Chem., 2015, Accepted Manuscript
DOI: 10.1039/C4OB02612H, PaperChong Qian, Mingyang Liu, Guanghui Hong, peng chong Xue, Peng Gong, Ran Lu
A series of new triphenylamine functionalized [small beta]-diketones 1-3 and their difluoroboron complexes 1B-3B were synthesized. They exhibited strong intramolecular charge transfer (ICT) emission. It was found that their self-assembling properties...
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Synthesis of a novel water-soluble cylindrical macrotricyclic host and its complexation with N-methylquinolinium and N-methylisoquinolinium salts: formation of 1 : 2 complexes in water

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02533D, CommunicationFei Zeng, Chuan-Feng Chen
A water-soluble cylindrical macrotricyclic host could form 1 : 2 complexes with N-methylquinolinium or N-methylisoquinolinium salts in water solution and in the solid state.
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Regulating exocytosis of nanoparticles via host-guest chemistry

21 January, 2015 - 06:54

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C4OB02433H, PaperChaekyu Kim, Gulen Yesilbag Tonga, Bo Yan, Chang Soo Kim, Sung Tae Kim, Myoung-Hwan Park, Zhengjiang Zhu, Bradley Duncan, Brian Creran, Vincent M. Rotello
Regulating exocytosis of AuNPs by using host-guest interactions between AuNPs and CB[7] molecules.
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