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A Recyclable CO Surrogate in Regioselective Alkoxycarbonylation of Alkenes: Indirect Use of Carbon Dioxide

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC05012J, CommunicationIvana Fleischer, Paul Henry Gehrtz, Vera Hirschbeck
Herein, we report a Pd-catalyzed alkoxycarbonylation of alkenes based on the use of a recyclable CO2 reduction product, the crystalline and air-stable N formylsaccharin, as a CO surrogate. The carbonylation...
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The Inductive-Effect of Electron Withdrawing Trifluoromethyl for Thermally Activated Delayed Fluorescence: Tunable Emission from Tetra- to Penta-Carbazole in Solution Processed Blue OLEDs

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04126K, CommunicationLing Mei, Jia Hu, Xudong Cao, Fangfang Wang, Chao Zheng, Youtian Tao, Xin-Wen Zhang, Wei Huang
Different to previous thermally activated delayed fluorescence (TADF) materials based on conjugated-effect of electron-withdrawing moieties, trifluoromethyl (CF3) is found to be a new acceptor building block owing to the electron-inductive-effect....
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A general method for N-glycosylation of nucleobases promoted by (p-Tol)2SO/Tf2O with thioglycoside as donor

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC03617H, CommunicationGuang-jian Liu, Xiao-tai Zhang, Guo-wen Xing
Based on a preactivation strategy with (p-Tol)2SO/Tf2O system, a series of nucleosides were synthesized by coupling various thioglycosides with pyrimidines and purines under mild conditions. High yields and excellent beta-stereoselectivities...
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Copper-catalyzed C-C bond-forming transformation of CO2 to the alcohol oxidation level: selective synthesis of homoallylic alcohols from allenes, CO2, and hydrosilanes

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC03932K, CommunicationYosuke Tani, Kazunari Kuga, Tetsuaki Fujihara, Jun Terao, Yasushi Tsuji
A highly selective carbon-carbon bond-forming transformation of carbon dioxide (CO2) to the alcohol oxidation level has been disclosed. By employing a copper/bisphosphine catalyst system and hydrosilanes as the mild and...
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Substrate-constituted three-liquid-phase system: a green, highly efficient and recoverable platform for interfacial enzymatic reaction

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04457J, CommunicationZhigang Li, Huayong Chen, Weifei Wang, Man Qu, Qingyun Tang, Bo Yang, Yonghua Wang
Highly efficient interfacial enzymatic hydrolysis of oil was achieved in a three-liquid-phase system, where the substrate constituted one of the phases. The enlarged interfacial area and relieved product inhibition were...
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Organocatalytic cascade reaction for asymmetric synthesis of novel chroman-fused spirooxindoles that potently inhibit cancer cell proliferation

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04968G, CommunicationBo Han, Gu He, Rui Zhou, Qinjie Wu, Mingrui Guo, Wei Huang, Xianghong He, Lei Yang, Fu Peng
Enantioselective preparation of pharmacologically interesting chroman-fused spirooxindole derivatives is described based on an organocatalytic multicomponent cascade reaction. Compounds synthesized using this method potently inhibited proliferation of various cancer cell lines....
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Double clicking for site-specific coupling of multiple enzymes

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04611D, CommunicationSung In Lim, Jinhwan Cho, Inchan Kwon
A method to site-specifically couple multiple enzymes is reported. The approach is based on site-specific incorporation of a clickable non-natural amino acid into enzymes and two compatible click reactions. The...
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Protein Engineering with Artificial Chemical Nucleases

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04615G, CommunicationRuth Larragy, Jenny Fitzgerald, Andreea Prisecaru, Vickie McKee, Paul Leonard, Andrew Kellett
Herein we report the application of oxidative artificial chemical nucleases as novel agents for protein engineering. The complex ion [Cu(Phen)2(H2O)]2+ (CuPhen; Phen = 1,10-phenanthroline) was applied under Fenton-type conditions against...
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Cerium-based Metal Organic Frameworks with UiO-66 Architecture: Synthesis, Properties and Redox Catalytic Activity

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC02606G, CommunicationMartin Lammert, Michael T. Wharmby, Simon Smolders, Bart Bueken, Alexandra Lieb, Kirill A. Lomachenko, Dirk E. De Vos, Norbert Stock
A series of nine Ce(IV)-based metal organic frameworks with the UiO-66 structure containing linker molecules of different sizes and functionalities were obtained under mild synthesis conditions and short reaction times....
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Diverse Display of Non-covalent Interacting Elements using Pyrimidine-Embedded Polyheterocycles

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04335B, CommunicationYoona Choi, Heejun Kim, Young-Hee Shin, Seung Bum Park
A series of pyrimidine-embedded polyheterocycles was synthesized using pDOS strategy in a facile manner. The resulting poly-heterocyclic core skeletons containing unique aza-tricyclic framework allowed for diverse display of non-covalent interacting...
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A fluorescent probe for ecstasy.

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04760A, CommunicationDaniele Masseroni, Elisa Biavardi, Damiano Genovese, Enrico Rampazzo, Luca Prodi, Enrico Dalcanale
A nanostructure formed by the insertion in silica nanoparticles of a pyrene-derivatized cavitand, able to specifically recognize ecstasy in water, is presented. The absence of effects from interferents and an...
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Novel Near-Infrared Carboxylated 1,3-Indandione Sensitizers for Highly Efficient Flexible Dye-Sensitized Solar Cells

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC03049H, CommunicationNaoyuki Shibayama, Yukiko Inoue, Masahiro Abe, Shingo Kajiyama, Hironobu Ozawa, Hidetoshi Miura, Hironori Arakawa
Three novel metal-free organic dyes (DN458, DN475 and DN484) were designed for use in plastic-substrate dye-sensitized solar cells (PDSCs). The photoelectric conversion region of DN475 was successfully expanded into the...
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Enhancing the Efficiency of Sortase-Mediated Ligations through Nickel-Peptide Complex Formation

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04657B, CommunicationR David Row, Travis J Roark, Marina C Philip, Lorena L Perkins, John Antos
A modified sortase A recognition site containing a masked Ni2+ binding peptide was employed to boost the efficiency of sortase-catalyzed ligation reactions. Deactivation of the Ni2+ binding peptide using a...
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Self-Assembled Light-Harvesting Supercomplexes from Fluorescent Surface-Cross-Linked Micelles

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04377H, CommunicationGeetika Chadha, Qing-Zheng Yang, Yan Zhao
Fluorescent nanoparticles made of cross-linked dansylated surfactants allowed efficient donor-donor energy migration within and beyond the nanoparticles when the nanoparticles aggregated in the presence of oppositely charged energy acceptors. The...
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Palladium-catalyzed aerobic oxidative cross-coupling of arylhydrazines with terminal alkynes

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04111B, CommunicationYingwei Zhao, Qiuling Song
A palladium-catalyzed Sonogashira-type aerobic oxidative coupling of arylhydrazines with aryl acetylenes via C-N bond cleavage has been developed; internal arylalkynes were afforded with a broad substrate scope. This reaction proceeds...
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A Facile Formal [2+1] Cycloaddition of Styrenes with alpha-Bromocarbonyls catalyzed by Copper: An Efficient Synthesis of Donor-Acceptor Cyclopropanes

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04697A, CommunicationTakashi Nishikata, Yushi Noda, Ryo Fujimoto, Shingo Ishikawa
Reactions of 2-bromoesters and styrenes underwent [2+1] cycloaddition reactions, i.e., cyclopropanation, to produce donor-acceptor (D-A) cyclopropanes through radical addition-ring closure process. In this reaction, the combination of copper(II) complex and...
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Application of a novel 2D cadmium(II)-MOF in the formation of a photo-switch with substantial on-off ratio

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04323A, CommunicationShouvik Chattopadhyay, Sumit Roy, Arka Dey, Partha Pratim Ray, Joaquin Ortega-Castro, Antonio Frontera
A novel thiocyanato bridged 2D MOF, [CdL([small micro]-1,3-SCN)2]n, [HL = 2-(2-(ethylamino)ethyliminomethyl)-6-ethoxyphenol] has been synthesized and characterized by X-ray crystallography. The band gap of the synthesized material in solid state has been...
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Poring graphene to encapsulate Na6.24Fe4.88(P2O7)4 as composite cathode materials for Na-ion batteries

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC04422G, CommunicationYu-Bin Niu, Mao-Wen Xu, SHU-JUAN BAO, Changming Li
Na6.24Fe4.88(P2O7)2@pored graphene composite is fabricated as a cathode of Na-ion batteries for the first time by a hydrothermal-assisted sol-gel process. In comparison to non-pored composite and pristine the as-prepared material,...
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Copper phthalocyanine-based CMPs with various internal structures and functionalities

Chem. Commun. - 3 July, 2015 - 05:17
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC02990B, CommunicationBao-Hang Han, Xuesong Ding
Several kinds of copper phthalocyanine-based conjugated microporous polymers have been synthesized, and present enhanced long-wavelength photons absorption capability and high efficiency for singlet oxygen generation bearing low energy light irradiation....
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Stabilization of cubic Sr2FeMoO6 through topochemical reduction

Chem. Commun. - 3 July, 2015 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C5CC04145G, CommunicationDaniel D. Taylor, Nathaniel J. Schreiber, Craig M. Brown, Angel M. Arevalo-Lopez, Efrain E. Rodriguez
Cubic Sr2FeMoO6 has been stabilized at room temperature, through topochemical de-intercalation of oxygen anions, whilst leaving magnetic ordering intact.
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