Chem. Commun.
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A macrocyclic aromatic pyridone pentamer as a highly efficient organocatalyst for the direct arylations of unactivated arenes
DOI: 10.1039/C3CC00019B, CommunicationHuaiqing Zhao, Jie Shen, Juanjuan Guo, Ruijuan Ye, Huaqiang Zeng
A macrocyclic pyridone pentamer catalyzes highly efficient transition-metal-free KOt-Bu-promoted arylations of unactivated aromatic C-H bonds with aryl bromides and iodides.
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100% thiol-functionalized ethylene PMOs prepared by "thiol acid-ene" chemistry
DOI: 10.1039/C3CC39074H, CommunicationDolores Esquivel, Otto van den Berg, Francisco J. Romero-Salguero, Filip Du Prez, Pascal Van Der Voort
A completely new pathway to synthesize a 100% thiol-functionalized Periodic Mesoporous Organosilica with excellent properties is presented, based on "thiol acid-ene" chemistry.
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Efficient chemical synthesis of human complement protein C3a
DOI: 10.1039/C3CC40537K, CommunicationArtin Ghassemian, Ching-I Anderson Wang, Mei-Kwan Yau, Robert C. Reid, Richard J. Lewis, David P. Fairlie, Paul F. Alewood, Thomas Durek
C3a was synthesized by native chemical ligation of three unprotected peptide segments and its structure determined by X-ray crystallography.
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Generation and alkylation of 2-boryl allylic sulfone anions
DOI: 10.1039/C3CC00030C, CommunicationErich F. Altenhofer, Michael Harmata
The deprotonation and electrophilic trapping of a 2-boropinacolato allylic sulfone results in the formation of the corresponding alkylation products.
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Gold-catalysed cascade rearrangements of ynamide propargyl esters
DOI: 10.1039/C3CC00273J, CommunicationStephen J. Heffernan, James M. Beddoes, Mary F. Mahon, Alan J. Hennessy, David R. Carbery
The Au(I)-catalysed rearrangement of propargylic esters formed from an ynamide has been studied.
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Fluorogenic dansyl-ligated gold nanoparticles for the detection of sulfur mustard by displacement assay
DOI: 10.1039/C3CC39105A, CommunicationRichard C. Knighton, Mark R. Sambrook, Jack C. Vincent, Simon A. Smith, Christopher J. Serpell, James Cookson, Matthew S. Vickers, Paul D. Beer
The dansyl fluorophore ligated to gold nanoparticles via imidazole and amine groups affords conjugates capable of detecting micromolar concentrations of the chemical warfare agent sulfur mustard by a fluorescence switching 'ON' displacement assay.
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Direct detection of unamplified genomic DNA based on photo-induced silver ion reduction by DNA molecules
DOI: 10.1039/C3CC38552C, CommunicationYe Lim Jung, Cheulhee Jung, Jung Hun Park, Moon Il Kim, Hyun Gyu Park
A label-free, colorimetric method has been developed for ultrasensitive detection of nucleic acids that is based on photoinduced silver ion (Ag+) reduction around DNA bases.
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A new phenanthroline-oxazine ligand: synthesis, coordination chemistry and atypical DNA binding interaction
DOI: 10.1039/C3CC38710K, CommunicationMalachy McCann, John McGinley, Kaijie Ni, Mark O'Connor, Kevin Kavanagh, Vickie McKee, John Colleran, Michael Devereux, Nicholas Gathergood, Niall Barron, Andreea Prisecaru, Andrew Kellett
A phenanthroline-oxazine ligand, PDT, is reported which interacts with dsDNA in atypical fashion when complexed with Cu2+ and Ag+.
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Copper-promoted decarboxylative direct C3-acylation of N-substituted indoles with [small alpha]-oxocarboxylic acids
DOI: 10.1039/C3CC40389K, CommunicationLin Yu, Pinhua Li, Lei Wang
A novel and efficient Cu-promoted decarboxylative C3-acylation of N-substituted indoles with [small alpha]-oxocarboxylic acids for the synthesis of 3-acylindoles was developed.
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Modification of conjugated microporous poly-benzothiadiazole for photosensitized singlet oxygen generation in water
DOI: 10.1039/C3CC38956A, CommunicationHiromitsu Urakami, Kai Zhang, Filipe Vilela
Water-dispersible alkyne-bearing conjugated microporous poly-benzothiadiazoles were synthesized using thiol-yne chemistry to enhance water compatibility.
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Porphyrin metalation providing an example of a redox reaction facilitated by a surface reconstruction
DOI: 10.1039/C3CC39134E, CommunicationJan Nowakowski, Christian Wackerlin, Jan Girovsky, Dorota Siewert, Thomas A. Jung, Nirmalya Ballav
On-surface redox reaction, i.e. porphyrin metalation, is facilitated by an oxygen reconstruction.
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A yolk-shell structured Fe2O3@mesoporous SiO2 nanoreactor for enhanced activity as a Fenton catalyst in total oxidation of dyes
DOI: 10.1039/C3CC38649J, CommunicationZhi-Min Cui, Zhe Chen, Chang-Yan Cao, Lei Jiang, Wei-Guo Song
A polymeric carbon assisted method to produce a yolk-shell structured Fe2O3@mesoporous SiO2 nanoreactor with excellent activity in Fenton-like reactions.
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A new class of highly solvatochromic dicyano rhenate(I) diimine complexes - synthesis, photophysics and photocatalysis
DOI: 10.1039/C3CC39189B, CommunicationLarry Tso-Lun Lo, Sze-Wing Lai, Shek-Man Yiu, Chi-Chiu Ko
A new class of rhenate(I) diimine complexes with highly environmentally sensitive photophysical properties was synthesised and characterised. These complexes are active photocatalysts for CO2 reduction.
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Total synthesis of kottamide E
DOI: 10.1039/C3CC39062D, CommunicationThomas B. Parsons, Neil Spencer, Chi W. Tsang, Richard S. Grainger
The first synthesis of kottamide E, a marine natural product containing a 5,6-dibromoindole linked via a (Z)-enamide to an unusual 1,2-dithiolane-containing amino acid, is reported.
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Polythiophene infiltrated TiO2 nanotubes as high-performance supercapacitor electrodes
DOI: 10.1039/C3CC00065F, CommunicationRohan B. Ambade, Swapnil B. Ambade, Nabeen K. Shrestha, Yoon-Chae Nah, Sung-Hwan Han, Wonjoo Lee, Soo-Hyoung Lee
An exceptional electrochemical capacitance of 640 F g-1 with high conductivity and long term stability was obtained for electropolymerized polythiophene infiltrated into the matrix of highly ordered TiO2 nanotubes.
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Nucleic acid-mesoporous silica nanoparticle conjugates for keypad lock security operation
DOI: 10.1039/C3CC38883B, CommunicationFang Pu, Zhen Liu, Jinsong Ren, Xiaogang Qu
A keypad lock system was fabricated based on DNA strand displacement to release molecules entrapped in the mesoporous silica nanoparticles.
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Facile preparation of chiral penicillamine protected gold nanoclusters and their applications in cell imaging
DOI: 10.1039/C3CC00200D, CommunicationXuan Yang, Linfeng Gan, Lei Han, Dan Li, Jin Wang, Erkang Wang
A facile synthesis of chiral penicillamine protected Au nanoclusters with different optical properties has been reported.
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Controlled synthesis of skein shaped TiO2-B nanotube cluster particles with outstanding rate capability
DOI: 10.1039/C3CC38994D, CommunicationKahee Shin, Hwan Jin Kim, Jae-Man Choi, Young-Min Choi, Min Sang Song, Jong Hyeok Park
Herein, we first report a facile synthetic route for preparing micron-sized particles comprising TiO2-B nanotubes, namely, skein shaped TiO2-B nanotube cluster particles with an ultra high surface area of 257 m2 g-1.
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Photo-induced current amplification in L-histidine modified nanochannels based on a highly charged photoacid in solution
DOI: 10.1039/C2CC38405A, CommunicationMinghui Zhang, Zheyi Meng, Jin Zhai, Lei Jiang
A light-induced nanofluidic diode is established based on highly charged molecules in solution.
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Reduction of alkenes catalyzed by copper nanoparticles supported on diamond nanoparticles
DOI: 10.1039/C3CC39011J, CommunicationAmarajothi Dhakshinamoorthy, Sergio Navalon, David Sempere, Mercedes Alvaro, Hermenegildo Garcia
Cu nanoparticles supported on diamond nanoparticles are highly efficient and reusable heterogeneous catalysts for hydrogenation of styrene to ethylbenzene with the minimum productivity value of 30 617 cycles.
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