Royal Society of Chemistry

DNA cleavage by oxymyoglobin and cysteine-introduced metmyoglobin

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15034-15036
DOI: 10.1039/C4CC06617K, CommunicationMegha Subhash Deshpande, Sendy Junedi, Halan Prakash, Satoshi Nagao, Masaru Yamanaka, Shun Hirota
DNA was cleaved oxidatively by oxygenated myoglobin, whereas Lys96Cys metmyoglobin functioned as an artificial nuclease under air by formation of an oxygenated species.
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The synthesis of diarylsulfones with simple arenes and K2S2O8 through double C-S bond formation

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15037-15040
DOI: 10.1039/C4CC05964F, CommunicationYiqing Yang, Zhang Chen, Yu Rao
A novel and practical method has been developed to prepare both symmetric and unsymmetric diarylsulfones with simple arenes in a single step. K2S2O8 serves as a highly effective sulfonating agent in this reaction. Both TfOH and TFAA play critical roles in C-S bond formation. The reaction demonstrates excellent reactivity, good functional group tolerance and high yields.
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A monomeric photosensitizer for targeted cancer therapy

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14983-14986
DOI: 10.1039/C4CC07628A, CommunicationRuizheng Liang, Lina Ma, Lele Zhang, Chunyang Li, Wendi Liu, Min Wei, Dan Yan, David G. Evans, Xue Duan
A targeted photosensitizer used in photodynamic therapy (PDT) was fabricated by incorporation of zinc phthalocyanine (ZnPc) and folic acid (FA) into polyvinylpyrrolidone (PVP) micelles, which exhibits excellent anticancer performance revealed by both in vitro studies and in vivo tests.
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Photoinduced water oxidation catalyzed by a double-helical dicobalt(II) sexipyridine complex

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14956-14959
DOI: 10.1039/C4CC07607A, CommunicationMan Chen, Siu-Mui Ng, Shek-Man Yiu, Kai-Chung Lau, Raymond J. Zeng, Tai-Chu Lau
A dicobalt(II) sexipyridine complex functions as a molecular catalyst for visible light-induced water oxidation at pH 8-8.5 in the presence of Ru(bpy)32+ and S2O82-.
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A novel chimeric amine dehydrogenase shows altered substrate specificity compared to its parent enzymes

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14953-14955
DOI: 10.1039/C4CC06527A, CommunicationBettina R. Bommarius, Martin Schurmann, Andreas S. Bommarius
We created a novel chimeric amine dehydrogenase (AmDH) via domain shuffling of two parent AmDHs ('L- and F-AmDH'), which in turn had been generated from leucine and phenylalanine DH, respectively.
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Radical cascade cyanomethylation of activated alkenes to construct cyano substituted oxindoles

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15049-15051
DOI: 10.1039/C4CC07667B, CommunicationJuan Li, Zhigang Wang, Ningjie Wu, Ge Gao, Jingsong You
A concise and practical cyanomethylation as well as nitromethylation of activated alkenes through a radical pathway has been established for the construction of substituted oxindoles.
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Metal-free aminoamidiniumation employing N-iodosuccinimide: facile syntheses of bicyclic imidazolidiniums and cyclic vicinal diamines

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15052-15054
DOI: 10.1039/C4CC07082H, CommunicationJun Zhang, Gengtao Zhang, Weijie Wu, Xuejun Zhang, Min Shi
NIS-mediated aminoamidiniumation has been developed for the syntheses of bicyclic imidazolidinium salts, which could be readily converted into 2-substituted pyrrolidine and indoline diamines.
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Micropatterning of hydrophilic polyacrylamide brushes to resist cell adhesion but promote protein retention

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14975-14978
DOI: 10.1039/C4CC03994G, CommunicationJianwen Hou, Qiang Shi, Wei Ye, Paola Stagnaro, Jinghua Yin
Novel micropatterned polyacrylamide brushes are fabricated to resist cell adhesion but promote protein retention.
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The copper(II)-phytate-terpyridine ternary system: the first crystal structures showing the interaction of phytate with bivalent metal and ammonium cations

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14971-14974
DOI: 10.1039/C4CC07226J, CommunicationNicolas Veiga, Julia Torres, Carla Bazzicalupi, Antonio Bianchi, Carlos Kremer
This work reports the solution and crystallographic study of the Cu(II)-phytate-terpyridine systems, showing for the first time the phytate binding mode toward a bivalent cation and protonated polyamine groups.
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Organic mixed valency in quadruple hydrogen-bonded triarylamine dimers bearing ureido pyrimidinedione moieties

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15071-15074
DOI: 10.1039/C4CC06779G, CommunicationKeishiro Tahara, Tetsufumi Nakakita, Shohei Katao, Jun-ichi Kikuchi
This study represents the first example of proton-coupled "organic" mixed valency in solution with different substituents being used to control the stability.
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Structural aesthetics in molecular nanoscience: a unique Ni26 cluster with a 'rabbit-face' topology and a discrete Ni18 'molecular chain'

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14942-14945
DOI: 10.1039/C4CC07192A, CommunicationAngeliki A. Athanasopoulou, Melanie Pilkington, Catherine P. Raptopoulou, Albert Escuer, Theocharis C. Stamatatos
The use of N-salicylidene-2-amino-5-chlorobenzoic acid as a ligand in Ni(II) chemistry has afforded a Ni26 cluster with a 'rabbit-face'-like topology, as well as a Ni18 compound with an unusual 'molecular chain' structure.
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Practical preparation of challenging amides from non-nucleophilic amines and esters under flow conditions

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15094-15097
DOI: 10.1039/C4CC07129H, CommunicationJohannes L. Vrijdag, Francisca Delgado, Nerea Alonso, Wim M. De Borggraeve, Natalia Perez-Macias, Jesus Alcazar
Preparation of amides from low nucleophilic heterocyclic amines is achieved in 2 minutes under mild conditions.
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Synthesis aided structural determination of amyloid-[small beta](1-15) glycopeptides, new biomarkers for Alzheimer's disease

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15067-15070
DOI: 10.1039/C4CC05085A, CommunicationPeng Wang, Jonas Nilsson, Gunnar Brinkmalm, Goran Larson, Xuefei Huang
The structure of an A[small beta] glycopeptide is determined, which is a potential biomarker for early diagnosis of Alzheimer's disease.
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An orthogonal photolabile linker for the complete "on-support" synthesis/fast deprotection/hybridization of RNA

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15063-15066
DOI: 10.1039/C4CC07153K, CommunicationJory Lietard, Matthew R. Hassler, Johans Fakhoury, Masad J. Damha
The preparation of a polystyrene solid support decorated with a photolabile linker is described.
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An efficient generation method and remarkable reactivities of 3-triflyloxybenzyne

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15059-15062
DOI: 10.1039/C4CC07058E, CommunicationSuguru Yoshida, Keisuke Uchida, Kazunobu Igawa, Katsuhiko Tomooka, Takamitsu Hosoya
Remarkably reactive 3-triflyloxybenzyne has been generated efficiently to afford a variety of aryl triflates and aryl triflones.
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Thiazolothiazole-linked porous organic polymers

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15055-15058
DOI: 10.1039/C4CC07255C, CommunicationXiang Zhu, Chengcheng Tian, Tian Jin, Jitong Wang, Shannon M. Mahurin, Wenwen Mei, Yan Xiong, Jun Hu, Xinliang Feng, Honglai Liu, Sheng Dai
Thiazolothiazole-linked porous organic polymers have been synthesized from a facile catalyst-free condensation reaction between aldehydes and dithiooxamide under solvothermal conditions.
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One-pot cascade reactions of 1-arylpenta-3,4-dien-2-ones leading to 2-arylphenols and dibenzopyroanones

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14968-14970
DOI: 10.1039/C4CC06204C, CommunicationYan He, Xinying Zhang, Xuesen Fan
A one-pot tandem reaction of 1-arylpenta-3,4-dien-2-ones with activated ketones allowed for an efficient synthesis of 2-arylphenols. Moreover, this reaction was found to be also compatible and combinable with Pd-catalyzed C-H activation and carbonylation of the in situ formed 2-arylphenols to provide dibenzopyranones.
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Morphological self-assembly of enantiopure allenes for upstanding chiral architectures at interfaces

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15022-15025
DOI: 10.1039/C4CC06398H, CommunicationYi-Qi Zhang, Murat Anil Oner, Inmaculada R. Lahoz, Borja Cirera, Carlos-Andres Palma, Silvia Castro-Fernandez, Sandra Miguez-Lago, M. Magdalena Cid, Johannes V. Barth, Jose Lorenzo Alonso-Gomez, Florian Klappenberger
Upstanding chiral architectures (UCAs) were fabricated from chiroptically active allenes under surface-confined conditions with morphological complementarity being central to the self-assembly process.
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Rhodium(III)-catalysed aerobic synthesis of highly functionalized indoles from N-arylurea under mild conditions through C-H activation

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14964-14967
DOI: 10.1039/C4CC06020B, CommunicationSubban Kathiravan, Ian A. Nicholls
A Rh(III) catalysed amino arylation of alkynes using copper as the terminal oxidant for regeneration of the catalytically active species under aerobic conditions is described.
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A novel aggregation-induced emission based fluorescent probe for an angiotensin converting enzyme (ACE) assay and inhibitor screening

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15075-15078
DOI: 10.1039/C4CC07161A, CommunicationHaibo Wang, Yi Huang, Xiaoping Zhao, Wan Gong, Yi Wang, Yiyu Cheng
A novel 'turn-on' fluorescent probe with the aggregation-induced emission (AIE) property for an ACE assay.
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