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Efficient imidation of C(sp3)-H bonds adjacent to oxygen atoms of aryl ether under metal-free condition

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06003B, Communicationkai sun, xin wang, gang li, zhonghong zhu, yongqing jiang, beibei xiao
Intermolecular oxidative C-N formation reaction of aryl ether with pharmacological saccharins was realized under metal-free condition for the first time. The understanding of intrinsic characteristics between C(sp3)-H and C(sp2)-O bonds...
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CO2 and SO2 Activation by a Cr-Cr Quintuple Bond

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05071A, CommunicationAwal Noor, Sadaf Qayyum, Tobias Bauer, Stefan Schwarz, Birgit Weber, Rhett Kempe
A quintuply bonded dichromium complex stabilized by aminopyridinato ligands activates CO2 and SO2 by reducing the (formal) bond order of the metal-metal bonds. Oxygen abstraction is observed during CO2 activation....
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Metal coordination, and metal-ligand redox non-innocence, modulates allosteric C-N bond homolysis in an N-benzyl tetrazine

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06235C, CommunicationCooper W Johnston, Travis R Schwantje, Michael J Ferguson, Robert McDonald, Robin G Hicks
Remote coordination of a Ru(hfac)2 moiety to a chelating N-benzyl tetrazine lowers the C-N homolytic bond dissociation enthalpy by approximately 20 kJ/mol. The significant bond strength perturbation is believed to...
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NIR-Responsive and Sugar-Targeted Polypeptide Composite Nanomedicine for Intracellular Cancer Therapy

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05983B, Communicationgang liu, Linzhu Zhu, Yue Su, Chang-Ming Dong
The upconversion nanoparticles (UCNPs)-loaded polypeptide composite nanoparticles that present fast NIR-sensitivity and tunable sugar-targeting properties are fabricated, opening a new avenue for on-demand and targeted cancer therapy. The half maximal...
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Efficient oxygen evolving catalyst based on [small mu ]-O diiron coordination complex

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04118F, CommunicationYongdong Liu, Rui Xiang, xiaoqiang Du, Yong Ding, baochun ma
A family of oxygen evolving catalysts was investigated, which was based on the most desired first-row transitional metal iron. Among them, the highest turnover number of 2380 was obtained in...
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Copper-catalyzed tandem annulation/arylation for the synthesis of diindolylmethanes from propargylic alcohols

Chem. Commun. - 45 min 48 sec ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05901H, CommunicationHui Li, Xiaoxun Li, Hao-Yuan Wang, Gabrielle N. Winston-McPherson, Hao-miao Julie Geng, Ilia A. Guzei, Weiping Tang
Highly substituted 2,3[prime or minute]-diindolylmethanes were prepared from propargylic alcohols and indole nucleophiles via a copper-catalyzed tandem indole annulation/arylation reaction.
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Probing the spatial and momentum distribution of confined surface states in a metal coordination network

Chem. Commun. - 45 min 48 sec ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03941F, CommunicationJun Zhang, Aneliia Shchyrba, Sylwia Nowakowska, Ernst Meyer, Thomas A. Jung, Matthias Muntwiler
We show how the surface state is confined and modulated by the porous structure of a metal-coordinated dicyano-anthracene on-surface network on Cu(111), as evidenced by scanning tunnelling microscopy and spectroscopy measurements in real and reciprocal space.
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Highly effective yet simple transmembrane anion transporters based upon ortho-phenylenediamine bis-ureas

Chem. Commun. - 45 min 48 sec ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05519E, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Louise E. Karagiannidis, Cally J. E. Haynes, Katie J. Holder, Isabelle L. Kirby, Stephen J. Moore, Neil J. Wells, Philip A. Gale
Simple, highly fluorinated receptors are shown to function as effective transmembrane anion transporters with the most active transporters rivalling the transport efficacy of natural anion transporter prodigiosin for chloride/bicarbonate antiport.
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An AIE-active boron-difluoride complex: multi-stimuli-responsive fluorescence and application for data security protection

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05913A, CommunicationXiaolin Zhu, Rui Liu, Yuhao Li, Hai Huang, Qiang Wang, Danfeng Wang, Xuan Zhu, Shishen Liu, Hongjun Zhu
A novel AIE-active boron-difluoride complex (PTZ) was synthesized and exhibits multi-stimuli responsive characteristics. Its colours and emissions can be switched by mechanical grinding, organic solvent vapours and acid/base vapours. This...
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In situ monitoring and optimization of room temperature ultra-fast sensitization for dye-sensitized solar cells

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05766J, CommunicationMatthew L. Davies, Trystan M. Watson, Peter James Holliman, Arthur Connell, David Anthony Worsley
We describe the fastest dyeing of TiO2 photo-electrodes for dye-sensitized solar cells reported to date (< 2 min) at room temperature giving [small eta] = 7.5% for an N719/SQ1/CDCA mixture which...
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Synthesis of Clickable Amphiphilic Polysaccharides as Nanoscopic Assemblies

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06343K, CommunicationWenjun Du, Liye Fu, Lingyao Li, Jun Wang, Kyle Knickelbein, Lin Zhang, Ian Milligan, Yi Xu, Kylie O'Hara, Lindsay Bitterman
The functionalization of polysaccharides has been synthetically challenging. Herein, we report a facile synthesis of clickable polysaccharides via ring-opening polymerization of an anhydro sugar (ROPAS). Alkynylated 1,6-anhydro glucopyranose was synthesized...
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Highly regioselective 1,3-dipolar cycloaddition of diphenylnitrilimine to Sc3N@Ih-C80 affording a very stable, unprecedented pyrazole-ring fused derivative of endohedral metallofullerenes

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06134A, CommunicationXing Lu, Bin Liu, Hailin Cong, Xiaofang Li, Bing Yu, Lipiao Bao, Wenting Cai, Yunpeng Xie
Formation of a very stable, unprecedented pyrazole-ring fused derivative of endohedral metallofullerenes was achieved from the first 1,3-dipolar cycloaddition reaction of Sc3N@C80 with diphenylnitrilimine in a highly regioselective manner.
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Composition-tunable Cu2(Ge1-x,Snx)(S3-y,Sey) Colloidal Nanocrystals: Synthesis and Characterization

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06071G, CommunicationYihui Wu, Bin Zhou, Mingrun Li, Chi Yang, Wen-hua Zhang, Can Li
A facile solution approach was developed to prepare cubic-structured Cu2(Ge1-x,Snx)(S3-y,Sey) nanocrystals (NCs) across the whole compositional ranges via colloidal chemistry. The band gaps of the NCs can be tuned in...
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p-Toluenesulphonic Acid-Promoted, I2-Catalysed Sulphenylation of Pyrazolones with Aryl Sulphonyl Hydrazides

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05237D, CommunicationXia Zhao, Lipeng Zhang, Tianjiao Li, Guiyan Liu, Haomeng Wang, Kui Lu
Aryl pyrazolone thioethers were synthesized by the I2-catalysed cross-coupling of pyrazolones with aryl sulphonyl hydrazides in the presence of p-toluenesulphonic acid, which is proposed to promote the reaction by facilitating...
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Highly Efficient and Robust Molecular Water Oxidation Catalysts Based on Ruthenium Complexes

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05069J, CommunicationLei Wang, Lele Duan, Ying Wang, Marten Ahlquist, Licheng Sun
Two monomeric ruthenium polypyridyl complexes Ru(bda)L2 (H2bda = 2,2-bipyridine-6,6-dicarboxylic acid, L= 6-fluoroisoquinoline, 1; 6-bromophthalazine, 2) have been prepared as molecular catalysts for the oxidation of water. Both ruthenium complexes show...
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Sustainable and scalable production of monodisperse and highly uniform colloidal carbonaceous spheres using sodium polyacrylate as dispersant

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04998E, CommunicationYutong Gong, Lei Xie, Haoran Li, Yong Wang
Monodisperse, uniform colloidal carbonaceous spheres were fabricated by the hydrothermal treatment of glucose with the help of tiny amount of sodium polyacrylate (PAANa). This synthetic strategy is effective at high...
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Copper-Catalyzed Endo-type Trifluoromethylarylation of Alkynes

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05692B, CommunicationJun Xu, Yun-Long Wang, Tian-Jun Gong, Bin Xiao, Yao Fu
A new copper-catalyzed aryltrifluoromethylation of alkynes has been developed. The transformation represents the first example of endo-type carbotrifluoromethylation of unsaturat-ed carbon-carbon bonds. This method provides an efficient and useful access...
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Mn(III)-mediated 2-Isocyanobiaryl Insertion with 1, 3-Dicarbonyl Compounds: Efficient Synthesis of 6-Alkylated and 6-Monofluoro-alkylated Phenanthridines

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05324A, CommunicationJia-Jia Cao, Xiang Wang, Shun-Yi Wang, Shun-Jun Ji
A Mn(III)-mediated 2-isocyanobiaryls with 1, 3-dicarbonyl compounds was described for the construction of 6-alkylated and 6-monofluoro-alkylated phenanthridines in moderate to good yields. The reaction involves two new C-C bonds formation...
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Hydride transfer from NADH analogues to a nonheme manganese(IV)-oxo complex via rate-determining electron transfer

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05313C, CommunicationHeejung Yoon, Yong-Min Lee, Wonwoo Nam, Shunichi Fukuzumi
Hydride transfer from NADH analogues to a nonheme Mn(IV)-oxo complex, [(Bn-TPEN)MnIV(O)]2+, proceeds via a rate-determining electron transfer with no deuterium kinetic isotope effect (KIE = 1.0 +/- 0.1); a charge-transfer...
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A turn-on fluorogenic Zn (II) chemoprobe based on a terpyridine derivative with aggregation-induced emission (AIE) effects through nanofiber aggregation into spherical aggregates

Chem. Commun. - 45 min 48 sec ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05283H, CommunicationJong Hwa Jung, Sung Ho Jung, Ki-Young Kwon
The self-assembly of terpyridine-based ligand in a DMSO/water solvent mixture (1:99 v/v) with a high content of water formed a nanofibrillar structure and showed a non-emissive process. On the other...
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