Chem. Commun.

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Robust platforms for creating organic-inorganic nanocomposite microspheres: decorating polymer microspheres containing mussel-inspired adhesion layers with inorganic nanoparticles

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14786-14789
DOI: 10.1039/C4CC05433D, CommunicationH. Satoh, Y. Saito, H. Yabu
A novel method for creating stable polymer microspheres decorated with inorganic nanoparticles using a mussel-inspired adhesive layer is reported.
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Transparent and colourless room temperature ionic liquids having high refractive index over 1.60

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14790-14792
DOI: 10.1039/C4CC06145D, CommunicationYoko Kayama, Takahiro Ichikawa, Hiroyuki Ohno
Transparent and colourless ionic liquids with refractive index over 1.60 were synthesised by combining 1-benzyl-3-methylimidazolium or hexyltriphenyl phosphonium cations with suitable anions. There is a positive relation between their refractive index values and Kamlet-Taft parameters, especially dipolarity/polarisability, strongly suggesting potential parameter to design highly refractive ionic liquids.
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Protein stapling via azide-alkyne ligation

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14900-14903
DOI: 10.1039/C4CC06528J, CommunicationDiya M. Abdeljabbar, Frank J. Piscotta, Siyan Zhang, A. James Link
"Stapling" proteins using the copper-catalyzed azide-alkyne click reaction endows these proteins with improved properties, including thermostability and binding affinity.
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Synthesis of cyclic carbonates from CO2 and epoxides catalyzed by low loadings of benzyl bromide/DMF at ambient pressure

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14813-14816
DOI: 10.1039/C4CC06791F, CommunicationLin Wang, Li Lin, Guangyou Zhang, Koichi Kodama, Mikio Yasutake, Takuji Hirose
Under mild conditions, an efficient, novel, and metal-free catalytic system was developed for the conversion of CO2 and epoxides to cyclic carbonates in good-to-excellent yields (up to 99%).
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One-pot synthesis of Pd@MOF composites without the addition of stabilizing agents

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14752-14755
DOI: 10.1039/C4CC06568A, CommunicationLiyu Chen, Huirong Chen, Yingwei Li
A facile one-pot route for the synthesis of Pd@MOF composites without additional stabilizing agents is developed for the first time. This strategy takes advantage of the strong coordinating moiety on a MOF ligand for stabilization and subsequent assembly of Pd nanoparticles (NPs) with the surfactant-free surface in MOF.
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Activation of oxygen evolving perovskites for oxygen reduction by functionalization with Fe-Nx/C groups

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14760-14762
DOI: 10.1039/C4CC06446A, CommunicationRosalba A. Rincon, Justus Masa, Sara Mehrpour, Frank Tietz, Wolfgang Schuhmann
A novel approach for integrating low-cost oxygen evolving and oxygen reducing electrocatalysts, and obtaining high-performing bifunctional composite materials for use in alkaline media.
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Porphyrin entrapment and release behavior of microporous organic hollow spheres: fluorescent alerting systems for existence of organic solvents in water

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14885-14888
DOI: 10.1039/C4CC06065B, CommunicationJaewon Jin, Bolyong Kim, Nojin Park, Sungah Kang, Joon Hyun Park, Sang Moon Lee, Hae Jin Kim, Seung Uk Son
Water soluble porphyrins were entrapped in microporous organic hollow spheres (MOHs). The resultant Zn-Por@MOH materials showed controllable release behavior that depended on the presence of organic solvents in water.
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"Double gating" - a concept for enzyme-responsive imaging probes aiming at high tissue specificity

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14896-14899
DOI: 10.1039/C4CC07147F, CommunicationMaxime Prost, Jens Hasserodt
A pro-fluorescent probe requires the presence of two target biomolecules to act on it in order to generate a signal.
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Reactions of pyruvates: organocatalytic synthesis of functionalized dihydropyrans in one pot and further transformations to functionalized carbocycles and heterocycles

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14881-14884
DOI: 10.1039/C4CC06035K, CommunicationPandurang V. Chouthaiwale, Fujie Tanaka
Concise cascade reactions of pyruvates with aldehydes that generate functionalized dihydropyran derivatives in one pot have been developed. The products, dihydropyrans, were further concisely transformed to various functionalized molecules.
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Separation of planar rotamers through intramolecular hydrogen bonding in polysubstituted 5-nitrosopyrimidines

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14892-14895
DOI: 10.1039/C4CC06978A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.L. Cechova, E. Prochazkova, I. Cisarova, M. Dracinsky, Z. Janeba
Unique isolation of pairs of planar rotamers, planamers, as chemical species differing only in nitroso group orientation, separable through the presence of a single intramolecular hydrogen bond, is reported.
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Tandem-reduction of DMF with silanes via necklace-type transition over Pt(0) nanoparticles: deciphering the dual Si-H effect as an extension of steric effects

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14820-14823
DOI: 10.1039/C4CC06979J, CommunicationVijay P. Taori, Michael R. Buchmeiser
The mechanism of the reduction of dimethylformamide to N(CH3)3 by the action of silanes and a heterogeneous Pt-catalyst is presented.
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Cerium tetrakis(diisopropylamide) - a useful precursor for cerium(IV) chemistry

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14763-14766
DOI: 10.1039/C4CC06228K, CommunicationDavid Schneider, Tatiana Spallek, Cacilia Maichle-Mossmer, Karl W. Tornroos, Reiner Anwander
Homoleptic complex Ce(NiPr2)4 features a promising candidate for protonolysis reactions, as shown for the synthesis of dimeric cerium(IV) tetrakis(1,1,3,3-N,N,N[prime or minute],N[prime or minute]-tetramethylguanidinate).
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A one-step route to Ag nanowires with a diameter below 40 nm and an aspect ratio above 1000

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14877-14880
DOI: 10.1039/C4CC04698F, CommunicationYunxia Ran, Weiwei He, Ke Wang, Shulin Ji, Changhui Ye
Ag nanowires with a diameter smaller than 25 nm and an aspect ratio larger than 1000 are synthesized using mixed PVP molecules of different chain length in a polyol reduction process.
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Anion binding modes in cis-trans-isomers of a binding site-fluorophore-[small pi]-extended system

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14748-14751
DOI: 10.1039/C4CC07308H, CommunicationMin Zhou, Jinju Chen, Chuanxiang Liu, Hanghai Fu, Nan Zheng, Chuanxiu Zhang, Yong Chen, Jiagao Cheng
The cis- and trans-conformational isomers revealed moderately different binding modes in the detection of CN- ions for the first time.
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A highly sensitive ratiometric electrochemiluminescent biosensor for microRNA detection based on cyclic enzyme amplification and resonance energy transfer

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14828-14830
DOI: 10.1039/C4CC06801G, CommunicationNan Hao, Xiang-Ling Li, Huai-Rong Zhang, Jing-Juan Xu, Hong-Yuan Chen
A ratiometric electrochemiluminescent biosensor for the detection of microRNAs based on cyclic enzyme amplification and resonance energy transfer was reported.
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The first route to highly stable crystalline microporous zirconium phosphonate metal-organic frameworks

2 November, 2014 - 16:54

Chem. Commun., 2014, 50,14831-14834
DOI: 10.1039/C4CC06223J, CommunicationMarco Taddei, Ferdinando Costantino, Fabio Marmottini, Angiolina Comotti, Piero Sozzani, Riccardo Vivani
The first crystalline microporous zirconium phosphonate metal-organic framework (UPG-1) was synthesized using the novel tritopic ligand 2,4,6-tris(4-(phosphonomethyl)phenyl)-1,3,5-triazine.
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Reversible transformation between chiral and achiral Dy6Mo4 clusters through a symmetric operation

31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14728-14731
DOI: 10.1039/C4CC07047J, CommunicationYong Zheng, Yin-Yin Pan, Yan-Ping Ren, La-Sheng Long, Rong-Bin Huang, Lan-Sun Zheng
The achiral cluster I, with S4 symmetry, can transform into chiral II and III, with C2 symmetry, via replacement of the NH4+ cation in I with Et3NH+ and Me4N+, respectively. And the transformation between chiral and achiral clusters is reversible.
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Spontaneous formation of organic helical architectures through dynamic covalent chemistry

31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14744-14747
DOI: 10.1039/C4CC07263D, CommunicationWenfang Li, Zeyuan Dong, Junyan Zhu, Quan Luo, Junqiu Liu
Using dynamic covalent chemistry, achiral and chiral building blocks are capable of self-organizing into organic helical structures, accompanied with chiral amplification.
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A novel Pd-catalyzed N-dealkylative carbonylation of tertiary amines for the preparation of amides

31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14775-14777
DOI: 10.1039/C4CC07378A, CommunicationTao Fang, Xu-Hong Gao, Ri-Yuan Tang, Xing-Guo Zhang, Chen-Liang Deng
We report a novel and efficient method for the synthesis of amides via Pd-catalyzed N-dealkylative carbonylation of alkyl tertiary amines.
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Acid- and base-functionalized core-confined bottlebrush copolymer catalysts for one-pot cascade reactions

31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14778-14781
DOI: 10.1039/C4CC06573E, CommunicationLinfeng Xiong, Hui Zhang, Aiqing Zhong, Zidong He, Kun Huang
A novel method that enables the formation of core-confined bottlebrush copolymers (CCBCs) as catalyst supports for one-pot cascade reactions is reported for the first time.
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