Chem. Commun.

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Versatile palladium-catalyzed C-H olefination of (hetero)arenes at room temperature

19 October, 2014 - 13:17

Chem. Commun., 2014, 50,13914-13916
DOI: 10.1039/C4CC05827E, CommunicationZhijie She, Yang Shi, Yumin Huang, Yangyang Cheng, Feijie Song, Jingsong You
The room-temperature oxidative C-H/C-H cross-couplings between simple arenes and alkenes, coumarins or quinones have been reported by using a highly electrophilic palladium species [Pd(TFA)2] as the catalyst and cheap (NH4)2S2O8 as the oxidant under air.
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Fluorinated microporous organic polymers: design and applications in CO2 adsorption and conversion

19 October, 2014 - 13:17

Chem. Commun., 2014, 50,13910-13913
DOI: 10.1039/C4CC06423B, CommunicationZhen-Zhen Yang, Yanfei Zhao, Hongye Zhang, Bo Yu, Zhishuang Ma, Guipeng Ji, Zhimin Liu
Efficient CO2 adsorption and subsequent conversion were realized adopting fluorinated microporous organic polymers (F-MOPs) under mild conditions.
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Subphthalocyanines: addressing water-solubility, nano-encapsulation, and activation for optical imaging of B16 melanoma cells

19 October, 2014 - 13:17

Chem. Commun., 2014, 50,13975-13978
DOI: 10.1039/C4CC05503A, CommunicationYann Bernhard, Pascale Winckler, Remi Chassagnon, Philippe Richard, Elodie Gigot, Jean-Marie Perrier-Cornet, Richard A. Decreau
Three new facets of subphthalocyanines (hydrophilic/hydrophobic) are presented: probes for molecular imaging, pH-activation, nano-encapsulation (liposomes: 20 nm large/13% loading).
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Facile synthesis of carbon-doped mesoporous anatase TiO2 for the enhanced visible-light driven photocatalysis

19 October, 2014 - 13:17

Chem. Commun., 2014, 50,13971-13974
DOI: 10.1039/C4CC05544F, CommunicationJuming Liu, Qiancheng Zhang, Jucai Yang, Huiyan Ma, Moses O. Tade, Shaobin Wang, Jian Liu
Carbon-doped mesoporous anatase TiO2 obtained by a xerogel carbonization process shows significantly enhanced photoactivity under visible light.
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Metal-free Mizoroki-Heck type reaction: a radical oxidative coupling reaction of 2-chloro-dithiane with substituted olefins

19 October, 2014 - 13:17

Chem. Commun., 2014, 50,14017-14020
DOI: 10.1039/C4CC06397J, CommunicationWenbin Du, Junshan Lai, Lixia Tian, Xingang Xie, Xuegong She, Shouchu Tang
A catalytic metal-free, radical oxidative Mizoroki-Heck type reaction for dithianyl-substituted olefins has been developed.
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Transfer and control of molecular chirality in the 1 : 2 host-guest supramolecular complex consisting of Mg(II)bisporphyrin and chiral diols: the effect of H-bonding on the rationalization of chirality

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,14037-14040
DOI: 10.1039/C4CC06092J, CommunicationSk. Asif Ikbal, Sanfaori Brahma, Sankar Prasad Rath
A series of chiral diol substrate binds to a Mg(II)bisporphyrin in an unusual endo-endo fashion due to inter-ligand H-bonding which eventually results in a remarkably high amplitude bisignate CD signal that is unprecedented for a 1 : 2 host-guest complex having a rigid bisporphyrin framework.
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A general and practical palladium-catalyzed monoarylation of [small beta]-methyl C(sp3)-H of alanine

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13924-13927
DOI: 10.1039/C4CC06652A, CommunicationKai Chen, Shuo-Qing Zhang, Jing-Wen Xu, Fang Hu, Bing-Feng Shi
Monoarylation of [small beta]-methyl C(sp3)-H of an alanine derivative with aryl iodides using an 8-aminoquinoline auxiliary has been described.
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Two birds with one stone: dendrimer surface engineering enables tunable periphery hydrophobicity and rapid endosomal escape

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,14025-14028
DOI: 10.1039/C4CC06621A, CommunicationZheng Wang, Chao Chen, Ruihong Liu, Aiping Fan, Deling Kong, Yanjun Zhao
Tailored surface engineering was employed to produce bifunctional thermosensitive dendrimers. Such approach could enable both on-demand drug release, and rapid endosomal escape.
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The "excited state C-C bond cleavage-luminescence" phenomenon of a biphenyl-substituted methylenecyclopropane triggered by intermolecular energy transfer from triplet benzophenone

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13963-13966
DOI: 10.1039/C4CC06847E, CommunicationYasunori Matsui, Taiki Kido, Eisuke Ohta, Hiroshi Ikeda
Existence of the "excited state C-C bond cleavage-luminescence" phenomenon was demonstrated by utilizing intermolecular energy transfer from the excited-triplet benzophenone to 2,2-di(4-biphenylyl)-1-methylenecyclopropane (3).
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Bay functionalized perylenediimide as a deaggregation based intracellular fluorescent probe for perchlorate

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13994-13997
DOI: 10.1039/C4CC06765G, CommunicationPrabhpreet Singh, Lalit Singh Mittal, Vanita Vanita, Rahul Kumar, Gaurav Bhargava, Amandeep Walia, Subodh Kumar
PDI 1 shows de-aggregation based selective fluorescence quenching with perchlorate ions (ClO4-) in buffer, in solid phase and in live rat C6 glioma cells.
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Coordination complex pyrolyzation for the synthesis of nanostructured GeO2 with high lithium storage properties

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13956-13959
DOI: 10.1039/C4CC06658H, CommunicationXiaona Li, Jianwen Liang, Zhiguo Hou, Yongchun Zhu, Yan Wang, Yitai Qian
A new straightforward access to nanostructured GeO2 based on the (NH4)3H(Ge7O16)(H2O)2.72 precursor-pyrolyzation reaction is designed and described.
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Organic dyes with intense light absorption especially suitable for application in thin-layer dye-sensitized solar cells

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13952-13955
DOI: 10.1039/C4CC06160H, CommunicationAlessio Dessi, Massimo Calamante, Alessandro Mordini, Maurizio Peruzzini, Adalgisa Sinicropi, Riccardo Basosi, Fabrizia Fabrizi de Biani, Maurizio Taddei, Daniele Colonna, Aldo Di Carlo, Gianna Reginato, Lorenzo Zani
The synthesis of three new D-[small pi]-A organic dyes, characterized by very intense light absorption, and their application as sensitizers for thin-layer DSSCs, are described.
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Multiplex isotope dimethyl labeling of substrate peptides for high throughput kinase activity assay via quantitative MALDI MS

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13960-13962
DOI: 10.1039/C4CC04906C, CommunicationZhenzhen Deng, Mingliang Ye, Yangyang Bian, Zheyi Liu, Fangjie Liu, Chunli Wang, Hongqiang Qin, Hanfa Zou
A multiplex isotope dimethyl labeling approach allowed MALDI MS to monitor the time dependent consumption of substrates and generation of products in one spot.
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Immobilization of a molecular catalyst on carbon nanotubes for highly efficient electro-catalytic water oxidation

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13948-13951
DOI: 10.1039/C4CC06959E, CommunicationFusheng Li, Lin Li, Lianpeng Tong, Quentin Daniel, Mats Gothelid, Licheng Sun
A high turnover frequency (TOF) of 7.6 s-1 together with a high catalytic current density of 2.2 mA cm-2 was successfully obtained at an overpotential of 480 mV for water splitting.
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A cost-effective pH-sensitive release system for water source pH detection

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13936-13939
DOI: 10.1039/C4CC05597G, CommunicationZhaoliang Zheng, Xing Huang, Dmitry Shchukin
A facile and cost-effective strategy has been developed to form basic cobalt carbonate nanovalves at the orifice of mesoporous nanocontainers, which facilitate the pH sensitive release of functional cargo for up-scaling towards applications in water source pH detection.
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Virtual screening and optimization of Type II inhibitors of JAK2 from a natural product library

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13885-13888
DOI: 10.1039/C4CC04498C, CommunicationDik-Lung Ma, Daniel Shiu-Hin Chan, Guo Wei, Hai-Jing Zhong, Hui Yang, Lai To Leung, Elizabeth A. Gullen, Pauline Chiu, Yung-Chi Cheng, Chung-Hang Leung
Amentoflavone has been identified as a JAK2 inhibitor by structure-based virtual screening of a natural product library. In silico optimization using the DOLPHIN model yielded analogues with enhanced potency against JAK2.
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Electrochemically driven drug metabolism via a CYP1A2-UGT1A10 bienzyme confined in a graphene nano-cage

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13896-13899
DOI: 10.1039/C4CC06200K, CommunicationJusheng Lu, Yuanjian Zhang, Henan Li, Jiachao Yu, Songqin Liu
A novel graphene nano-cage containing a CYP1A2-UGT1A10 bienzyme was successfully fabricated for studying drug sequential metabolism using an electrochemically driven method.
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A novel mesoporous carbon@silicon-silica nanostructure for high-performance Li-ion battery anodes

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13944-13947
DOI: 10.1039/C4CC03545C, CommunicationQianjun He, Chaohe Xu, Jianqiang Luo, Wei Wu, Jianlin Shi
A novel hierarchical nanostructure with graphite-like carbon and small Si nanocrystals, respectively, encapsulated in the mesopores and embedded in a silica framework of mesoporous silica nanoparticles is constructed for high-performance Li-ion batteries.
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N-Acetylglucosamine-based efficient, phase-selective organogelators for oil spill remediation

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13940-13943
DOI: 10.1039/C4CC06024E, CommunicationSomnath Mukherjee, Congdi Shang, Xiangli Chen, Xingmao Chang, Kaiqiang Liu, Chunmeng Yu, Yu Fang
Two simple, eco-friendly and efficient carbohydrate gelators have been created for instant selective gelation of oil from oil-water mixtures to combat marine oil spills.
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Pt-Cu bimetallic electrocatalysts with enhanced catalytic properties for oxygen reduction

17 October, 2014 - 12:54

Chem. Commun., 2014, 50,13889-13892
DOI: 10.1039/C4CC02391A, CommunicationChun-Mei Zhu, Ang Gao, Yuan Wang, Yan Liu
A promising bimetallic electrocatalyst for polymer electrolyte membrane fuel cells having an average diameter of 2.9 nm for Pt-Cu nanoparticles.
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