Chem. Commun.

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Expanding the toolbox of organic chemists: directed evolution of P450 monooxygenases as catalysts in regio- and stereoselective oxidative hydroxylation

9 December, 2014 - 01:55

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC09218J, Feature ArticleGheorghe-Doru Roiban, Manfred T. Reetz
Cytochrome P450 enzymes (CYPs) have been used for more than six decades as catalysts for the CH-activating oxidative hydroxylation of organic compounds with formation of added-value products.
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Theonellasterone, a steroidal metabolite isolated from a Theonella sponge, protects Peroxiredoxin-1 from oxidative stress reactions.

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09205H, CommunicationLuigi Margarucci, Maria Chiara Monti, Alessandra Tosco, Roberta Esposito, Angela Zampella, Valentina Sepe, Matteo Mozzicafreddo, R Riccio, Agostino Casapullo
Peroxiredoxin-1, a key enzyme in cellular detoxification pathway, has been identified through a chemo-proteomic approach as the main partner of thonellasterone, a marine bioactive metabolite. A combination of chemical and...
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Concise Synthesis of Cyclic Carbonyl Compounds from Haloarenes Using Phenyl Formate as the Carbonyl Source

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09413A, CommunicationHideyuki Konishi, Hiroki Nagase, Kei Manabe
Various cyclic carbonyl compounds were concisely synthesized by carbonylative cyclization of haloarenes bearing nucleophilic moieties under Pd catalysis. Broad substrate scope and a feasible large-scale synthesis clearly demonstrate the high...
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Coupling of carboxylic acids with internal alkynes by supported ruthenium catalysts: Direct and selective syntheses of multi-substituted phthalide derivatives

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08461F, CommunicationHiroki Miura, Kentaro Tsutsui, Kenji Wada, Tetsuya Shishido
Supported ruthenium catalysts promotes coupling of various kinds of aromatic carboxylic acids with internal alkynes, giving the corresponding multi-substituted phthalide derivatives in high yields. The supported Ru catalyst can be...
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Selective conversion of nitroarenes using a carbon nanotube-ruthenium nanohybrid

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09192B, CommunicationDhanaji Jawale, Edmond Gravel, Caroline Boudet, Nimesh Shah, Valerie GEERTSEN, Haiyan Li, Irishi N Namboothiri, Eric Doris
Ruthenium nanoparticles were assembled on carbon nanotubes and the resulting nanohybrid was used in the hydrazine-mediated catalytic hydrogenation of various nitroarenes, at room temperature. Depending on the solvent, a selective...
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Palladium-catalyzed Oxidative Carbonylation of the hydrazides : Synthesis of 1,3,4-oxadiazol-2(3H)-ones

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08731C, CommunicationHuabao Chen, Yu Wang, Xu Meng, Yuting Yang, Lutao Zhang, Shuaibo Guo, Dong Tang, Yaxuan Li
A novel palladium-catalyzed oxidative carbonylation reaction was developed via the carbon monoxide insertions between amine group and carbonyl group to realize the intramolecular cyclization, which provides an efficient access to...
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Mn(OAc)3-Mediated Phosphonation-Lactonization of Alkenoic Acids: Synthesis of Phosphono-[gamma]-butyrolactones

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07978G, CommunicationGuo Tang, Yuzhen Gao, Xueqin Li, Jian Xu, Yile Wu, Weizhu Chen, Yufen Zhao
A new, general method for the synthesis of phosphono-[gamma]-butyrolactones has been achieved through Mn(OAc)3-mediated radical oxidative phosphonation and lactonization of alkenoic acids with H-phosphonates and H-phosphine oxide. Mn(OAc)3 can be...
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A novel and one-pot method for the synthesis of substituted furopyridines: I2-mediated oxidative reaction of enaminones via tandem cyclization under metal-free conditions

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08834D, CommunicationLong Ru Yan, xiaoni li, xiaodong yang, xing kang, likui xiang, Guosheng Huang
A novel and I2-mediated oxidative tandem cyclization reaction of simple enaminones has been developed for the synthesis of substituted furopyridines through C-C/C-N/C-O bonds formation in one pot procedure. In this...
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Substrate Selective Amide Coupling Driven by Encapsulation of a Coupling Agent within a Self-Assembled Hexameric Capsule

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08833F, CommunicationSonia Giust, Giorgio La Sorella, Laura Sperni, Giorgio Strukul, Alessandro Scarso
Encapsulation of a cationic carbodiimide condensing agent within a self-assembed hexameric capsule made of resorcin[4]arene units provided a nano-environment that efficiently steers the substrate selectivity in the amide synthesis reaction...
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Efficient Passivated Phthalocyanine-Quantum Dot Solar Cells

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08104H, CommunicationVicente Manuel Blas-Ferrando, Javier Ortiz, Victoria Gonzalez-Pedro, Rafael S. Sanchez, Ivan Mora Sero, Fernando Fernandez-Lazaro, Angela Sastre-Santos
The power conversion efficiency of CdSe and CdS quantum dot sensitized solar cells is enhanced by passivation with asymmetrically substituted phthalocyanines. The introduction of the phthalocyanine dye increases the efficiency...
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Pyrene-based mechanically interlocked SWNTs

9 December, 2014 - 01:55

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08970G, CommunicationAlejandro Lopez-Moreno, Emilio M. Perez
Pyrene serves as a recognition motif to template the synthesis of mechanically interlocked derivatives of SWNTs.
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Control over connectivity and magnetism of tetrahedral FeSe2 chains through coordination Fe-amine complexes

9 December, 2014 - 01:55

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08608B, CommunicationJoshua T. Greenfield, Chongin Pak, Saeed Kamali, Kathleen Lee, Kirill Kovnir
Magnetic interactions in compounds containing tetrahedral [infinity]1(FeSe2) chains separated by Fe-amine complexes are controlled by the denticity of the amine.
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Predicting the structure and interfacial activity of diblock brush, mixed brush, and Janus-grafted nanoparticles

9 December, 2014 - 01:55

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08659G, CommunicationJason Koski, Huikuan Chao, Robert A. Riggleman
We develop a field theoretic simulation model to study the interfacial properties of grafted nanoparticles as a function of the grafting architecture.
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Fabrication of highly-specific SERS substrates by co-precipitation of functional nanomaterials during the self-sedimentation of silver nanowires into a nanoporous film

9 December, 2014 - 01:55

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08016E, CommunicationRui Liu, Jie-fang Sun, Dong Cao, Li-qiang Zhang, Jing-fu Liu, Gui-bin Jiang
In this report, we propose and demonstrate the fabrication of a highly-specific SERS substrate by co-precipitating of functional materials, such as nanosorbents and nanocatalysts, into Ag nanoporous films.
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Enhancing catalytic activity and stability for CO2 methanation on Ni@MOF-5 via controlling active species dispersion

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08733J, CommunicationWenlong Zhen, Bo Li, Jiantai Ma, Gongxuan Lu
A novel high active catalyst Ni@MOF-5 showed unexpected higher activity under the low temperature for CO2 methanation. The characterization results indicated that Ni was in highly dispersed uniform state over...
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Inhibition of Alzheimer's Amyloid-[small beta] Peptide Aggregation and its Disruption by a Conformationally Restricted [small alpha]/[small beta] Hybrid Peptide

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09063B, CommunicationAshim Paul, Krishna Nadimpally, Tanmay Mondal, Kishore Thalluri, Bhubaneswar Mandal
Insertion of an anthranilic acid in an amyloidogenic peptide sequence generates a novel conformationally restricted [small alpha]/[small beta]-hybrid peptide that inhibits amyloid formation of A[small beta](1-40) and disrupts preformed fibrillar aggregates in vitro....
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Selective Disruption of Each Part of Janus Molecular Assemblies by Lateral Diffusion of Stimuli-Responsive Amphiphilic Peptide

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08686D, CommunicationMotoki Ueda, Akihiro Uesaka, Shunsaku Kimura
Stimuli-Responsive Janus-type assemblies with a round-bottom flask shape are prepared from amphiphilic helical peptides by the patchwork self-assembly technique. It can disassemble selectively at the neck or the round-bottom part...
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Cellular activity of siRNA oligonucleotides containing synthetic isomorphic nucleoside surrogates

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08809C, CommunicationDongwon Shin, Peter Lonn, Steven Dowdy, Yitzhak Tor
Singly and multiply modified synthetic siRNA oligonucleotides, containing isomorphic surrogate nucleobases, show high interference potency in cell culture, suggesting the highly isomorphic RNA alphabet, based on a thieno[3,4-d]-pyrimidine core, is...
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One-by-one single-molecule detection of mutated nucleobases by monitoring tunneling current using a DNA tip

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08227C, CommunicationPhuc Tan Bui, Tomoaki Nishino, Hiroshi Shiigi, Tsutomu Nagaoka
A DNA molecule was utilized as a probe tip to achieve single-molecule genetic diagnoses. Hybridization of the probe and target DNAs resulted in electron tunneling along the emergent double-stranded DNA....
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In situ preparation of 3D graphene aerogels@ hierarchical Fe3O4 nanoclusters as high rate and long cycle anode materials for lithium ion batteries

9 December, 2014 - 01:55
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08949A, CommunicationLishuang Fan, Bingjiang Li, David Rooney, nai qing zhang, Kening Sun
we describe a novel strategy for in situ fabrication of hierarchical Fe3O4 nanoclusters/GAs. Fe3O4 NCs/GAs deliver an excellent rate capability (the reversible capacities obtained were 1442, 392 and 118 mAhg-1...
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