Chem. Commun.

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General base-tuned unorthodox synthesis of amides and ketoesters with water

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,384-387
DOI: 10.1039/C4CC07961B, CommunicationSaikat Khamarui, Rituparna Maiti, Dilip K. Maiti
We discovered a highly reactive [small lambda]3-hypervalent iodane species using an inorganic/organic base for the unorthodox synthesis of amides and ketoesters through grafting terminal alkynes. In contrast to the metal-catalyzed dehydrative approaches the in situ generated nonmetallic reagent efficiently created C-N/C-O and C[double bond, length as m-dash]O bonds with amines/alkynes and water at rt.
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Control of nanoparticle penetration into biofilms through surface design

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,282-285
DOI: 10.1039/C4CC07737G, CommunicationXiaoning Li, Yi-Cheun Yeh, Karuna Giri, Rubul Mout, Ryan F. Landis, Y. S. Prakash, Vincent M. Rotello
Cationic quantum dots effectively penetrate biofilms, providing insight for targeting and imaging applications.
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Embedding of a ruthenium(II) water oxidation catalyst into nanofibers via self-assembly

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,290-293
DOI: 10.1039/C4CC08314H, CommunicationValentin Kunz, Vladimir Stepanenko, Frank Wurthner
Self-assembled nanofibers of a ruthenium(II)-PBI complex exhibited an appreciable catalytic performance in the oxidative water splitting reaction.
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Organic-free synthesis of layer-like FAU-type zeolites

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,279-281
DOI: 10.1039/C4CC07947G, CommunicationA. Inayat, C. Schneider, W. Schwieger
The presence of simple inorganic salts during zeolite synthesis turned out to be an effective and easy to handle alternative to organic additives to induce the growth of layer-like zeolite morphologies.
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Signal enhancement of electrochemical biosensors via direct electrochemical oxidation of silver nanoparticle labels coated with zwitterionic polymers

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,402-405
DOI: 10.1039/C4CC07474B, CommunicationR. Geagea, P.-H. Aubert, P. Banet, N. Sanson
A new electrochemical label has been developed, which is made up of silver nanoparticles (AgNPs) coated with a mixture of zwitterionic and biotinylated zwitterionic polymers.
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Smart pH-responsive upconversion nanoparticles for enhanced tumor cellular internalization and near-infrared light-triggered photodynamic therapy

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,406-408
DOI: 10.1039/C4CC08178A, CommunicationSheng Wang, Lei Zhang, Chunhong Dong, Lin Su, Hanjie Wang, Jin Chang
The smart pH-responsive upconversion nanoparticles are promising agents for deep cancer photodynamic therapy applications.
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Sulphur promoted C(sp3)-C(sp2) cross dehydrogenative cyclisation of acetophenone hydrazones with aldehydes: efficient synthesis of 3,4,5-trisubstituted 1H-pyrazoles

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,366-369
DOI: 10.1039/C4CC08210A, CommunicationRajeshwer Vanjari, Tirumaleswararao Guntreddi, Saurabh Kumar, Krishna Nand Singh
The first-time sulfur-promoted CDC approach involving acetophenone hydrazones and aldehydes has been developed for the synthesis of substituted pyrazoles.
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Composite 5A zeolite with ultrathin porous TiO2 coating for selective gas adsorption

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,373-375
DOI: 10.1039/C4CC08186B, CommunicationZhuonan Song, Yi Huang, Lei Wang, Shiguang Li, Miao Yu
A composite zeolite adsorbent was prepared by conformally depositing an ultrathin porous TiO2 coating on the external surface of the 5A zeolite by molecular layer deposition (MLD) and subsequent calcination.
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A cage-based cationic body-centered tetragonal metal-organic framework: single-crystal to single-crystal transformation and selective uptake of organic dyes

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,370-372
DOI: 10.1039/C4CC07357F, CommunicationDi-ming Chen, Wei Shi, Peng Cheng
A cage-based cationic metal-organic framework shows interesting single-crystal-to-single-crystal transformation upon solvent exchange process and selective uptake of organic dyes.
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A Lewis acid activated reaction of Zn with EtI to promote highly enantioselective alkyne additions to aldehydes

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,358-361
DOI: 10.1039/C4CC08031A, CommunicationShan-yong Chen, Winnie Liu, Xuedan Wu, Jun Ying, Xiaoqi Yu, Lin Pu
Zn powder and EtI in the presence of (S)-BINOL and Ti(OiPr)4 promote highly enantioselective alkyne addition to aldehydes at rt to generate chiral propargylic alcohols.
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Long-term thiol monitoring in living cells using bioorthogonal chemistry

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,388-390
DOI: 10.1039/C4CC08396B, CommunicationLei Rong, Chi Zhang, Qi Lei, Hua-Ling Sun, Si-Yong Qin, Jun Feng, Xian-Zheng Zhang
A bioorthogonal chemistry based fluorescent probe is reported, which is capable of monitoring intracellular thiols in living cells on a 36 hour timescale with an obvious blue-to-green fluorescence change.
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Central-axial-central chirality transfer: asymmetric synthesis of highly substituted indenes bearing a stereogenic quaternary carbon center from optically active propargyl alcohols

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,380-383
DOI: 10.1039/C4CC08034C, CommunicationMasahiro Egi, Kaori Shimizu, Marin Kamiya, Yuya Ota, Shuji Akai
An asymmetric synthesis of highly substituted indenes has been developed via the central-axial-central chirality transfer from optically active propargyl alcohols.
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Magnetic cellulose-TiO2 nanocomposite microspheres for highly selective enrichment of phosphopeptides

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,338-341
DOI: 10.1039/C4CC08442J, CommunicationJiangjiang Duan, Xiaomei He, Lina Zhang
Novel magnetic cellulose-TiO2 nanocomposite microspheres were prepared successfully by in situ synthesis of TiO2 nanoparticles in the micro/nanopores of cellulose-Fe3O4 microsphere, which exhibited highly selective enrichment of trace phosphopeptides, as a result of the high-efficiency Lewis acid-base reaction.
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A novel fluorene-based aggregation-induced emission (AIE)-active gold(I) complex with crystallization-induced emission enhancement (CIEE) and reversible mechanochromism characteristics

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,326-329
DOI: 10.1039/C4CC08087D, CommunicationZhao Chen, Jing Zhang, Min Song, Jun Yin, Guang-Ao Yu, Sheng Hua Liu
A novel fluorene-based AIE-active gold(I) complex is reported. The luminogen exhibits a CIEE effect and reversible mechanochromism behavior.
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Bifunctional covalent organic frameworks with two dimensional organocatalytic micropores

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,310-313
DOI: 10.1039/C4CC07104B, CommunicationDigambar Balaji Shinde, Sharath Kandambeth, Pradip Pachfule, Raya Rahul Kumar, Rahul Banerjee
We report the successful incorporation of bifunctional (acid/base) catalytic sites in the crystalline organocatalytic porous COF (2,3-DhaTph). Due to the presence of acidic (catachol) and basic (porphyrin) sites, 2,3-DhaTph shows significant selectivity, reusability, and excellent ability to perform the cascade reaction.
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CO2 and temperature dual responsive "Smart" MXene phases

9 December, 2014 - 01:55

Chem. Commun., 2015, 51,314-317
DOI: 10.1039/C4CC07220K, CommunicationJing Chen, Ke Chen, Dingyi Tong, Youju Huang, Jiawei Zhang, Jianming Xue, Qing Huang, Tao Chen
CO2 and temperature responsive properties of PDMAEMA allow V2C@PDMAEMA to be used as a smart hybrid system in sensing applications.
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A straightforward alkynylation of Li and Mg metalated heterocycles with sulfonylacetylenes

9 December, 2014 - 01:54

Chem. Commun., 2015, 51,346-349
DOI: 10.1039/C4CC07574A, CommunicationLeyre Marzo, Ignacio Perez, Francisco Yuste, Jose Aleman, Jose Luis Garcia Ruano
Coupling of alkynyl moieties to heterocyclic rings, without using transition metals, can be easily performed by the reaction of aryl or heteroaryl sulfonylacetylenes with heteroaryl-Li compounds or their corresponding less reactive magnesium derivatives.
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A time-resolved luminescence biosensor assay for anaplastic lymphoma kinase (ALK) activity

7 December, 2014 - 01:17

Chem. Commun., 2015, 51,362-365
DOI: 10.1039/C4CC07453J, CommunicationWei Cui, Laurie L. Parker
A generalizable strategy that combines time-resolved luminescence measurement and peptide substrate provides novel kinase assay for drug screening applications.
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Titania photocatalysis through two-photon band-gap excitation with built-in rhodium redox mediator

7 December, 2014 - 01:17

Chem. Commun., 2015, 51,298-301
DOI: 10.1039/C4CC07049F, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Joanna Kuncewicz, Bunsho Ohtani
Titania particles modified with an extremely small amount (<0.01 mol%) of a rhodium species exhibited photocatalytic activity for the oxidative decomposition of acetaldehyde in air under visible-light irradiation. The reaction proceeded via a two-photon band-gap excitation mechanism with a built-in Rh(III)-Rh(IV) redox couple.
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Out of the active site binding pocket for carbonic anhydrase inhibitors

7 December, 2014 - 01:17

Chem. Commun., 2015, 51,302-305
DOI: 10.1039/C4CC07320G, CommunicationKatia D'Ambrosio, Simone Carradori, Simona M. Monti, Martina Buonanno, Daniela Secci, Daniela Vullo, Claudiu T. Supuran, Giuseppina De Simone
2-Benzylsulfinylbenzoic acid binds to human carbonic anhydrase II in a mode completely different from any other class of carbonic anhydrase inhibitors investigated so far.
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