Royal Society of Chemistry

Sensitivity enhancement in slice-selective NMR experiments through polarization sharing

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8550-8553
DOI: 10.1039/C4CC02978J, Communication Lokesh, N. Suryaprakash
Sensitivity enhanced spatially encoded NMR experiments.
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A supramolecular hydrogelator of curcumin

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03139C, CommunicationChengbiao Yang, Zhongyan Wang, Caiwen Ou, Minsheng Chen, Ling Wang, Zhimou Yang
The first supramolecular hydrogelator of curcumin is reported in this study.
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1,2,4,3-Triazaborole-based neutral oxoborane stabilized by a Lewis acid

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8561-8564
DOI: 10.1039/C4CC03379E, CommunicationYing Kai Loh, Che Chang Chong, Rakesh Ganguly, Yongxin Li, Dragoslav Vidovic, Rei Kinjo
A 1,2,4,3-triazaborole-based oxoborane derivative has been synthesized via hydrogen migration upon the coordination of AlCl3 to the corresponding borinic acid. X-ray diffraction analysis and computational study revealed the partial B[double bond, length as m-dash]O double-bond property.
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Two modes of photoinduced twisted intramolecular charge transfer in meso-arylaminated subporphyrins

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8491-8494
DOI: 10.1039/C4CC02368D, CommunicationWon-Young Cha, Jong Min Lim, Kyu Hyung Park, Masaaki Kitano, Atsuhiro Osuka, Dongho Kim
Photoinduced twisted intramolecular charge transfer (TICT) of meso-(4-dimethylamino)phenylamino subporphyrin 2 and meso-(4-nitro)phenylamino subporphyrin 3 has been revealed by steady-state and time-resolved absorption/fluorescence experiments and quantum calculations.
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High-sensitivity fluorescence imaging of iron in plant tissues

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8547-8549
DOI: 10.1039/C4CC02132K, CommunicationMi-Jeong Park, Hak-Sung Jung, Young-Jae Kim, Young-Ju Kwon, Jin-Kyu Lee, Chung-Mo Park
Fluorescence imaging of Fe ions in (a) leaf epidermal cells, (b) the stem, and (c) the root stem of Arabidopsis plants by the rapid, simple, and inexpensive photoinduced electron transfer (PET) fluorescent probing method.
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Polynorbornene derived 8-hydroxyquinoline paper strips for ultrasensitive chemical nerve agent surrogate sensing

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8511-8513
DOI: 10.1039/C4CC03361B, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Santu Sarkar, Raja Shunmugam
The detection of nerve agent simulants is achieved by the photoinduced electron transfer (PET) mechanism.
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Coordination polymers for catalysis: enhancement of catalytic activity through hierarchical structuring

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8543-8546
DOI: 10.1039/C4CC02909G, CommunicationFan-Xing Bu, Ming Hu, Li Xu, Qi Meng, Gui-Yun Mao, Dong-Mei Jiang, Ji-Sen Jiang
Hierarchical Prussian white (PW) crystals were synthesized by using a self-aggregation and etching strategy. The crystals exhibit superior catalytic activity in degradation of methylene blue to the non-hierarchical PW crystals.
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Synthesis of monolayer platinum nanosheets

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8503-8506
DOI: 10.1039/C4CC02527J, CommunicationA. Funatsu, H. Tateishi, K. Hatakeyama, Y. Fukunaga, T. Taniguchi, M. Koinuma, H. Matsuura, Y. Matsumoto
Platinum (Pt) nanosheets were developed by exfoliating layered platinum oxide. Moreover, we succeeded in synthesizing monolayer Pt nanosheets for the first time by adjusting the conditions for reduction. Monolayer Pt nanosheets were highly active in oxygen reduction reaction.
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[3+3] annulation of allylic phosphoryl-stabilized carbanions/phosphorus ylides and vinyl azides: a practice strategy for synthesis of polyfunctionalized anilines

Chem. Commun. - 10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8539-8542
DOI: 10.1039/C4CC03462G, CommunicationShen Liu, Wenteng Chen, Jing Luo, Yongping Yu
Tandem Michael addition and Witting or Horner-Wadsworth-Emmons olefination initiated [3+3] annulation between vinyl azides and allylic phosphorus ylides or allylic phosphoryl-stabilized carbanions has been developed.
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Synthesis and pharmacological evaluation of like- and unlike-configured tetrahydro-2-benzazepines with the [small alpha]-substituted benzyl moiety in the 5-position

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5407-5426
DOI: 10.1039/C4OB00510D, PaperPeer Hasebein, Bastian Frehland, Kirstin Lehmkuhl, Roland Frohlich, Dirk Schepmann, Bernhard Wunsch
5-Substituted tetrahydro-2-benzazepines were prepared and the relationship between the structure, in particular the stereochemistry, and the [sigma]1 affinity was analyzed.
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The structure of 3-(diethylborylethynyl)pyridine: a nonplanarly arranged cyclic trimer

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5382-5387
DOI: 10.1039/C4OB00849A, PaperShigeharu Wakabayashi, Mitsumi Kuse, Aimi Kida, Seiji Komeda, Kazuyuki Tatsumi, Yoshikazu Sugihara
The cyclic trimer of 3-(diethylborylethynyl)pyridine is conformationally flexible enough to be affected by the crystal packing.
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Electrophilic sulfhydration of 8-nitro-cGMP involves sulfane sulfur

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5360-5364
DOI: 10.1039/C4OB00868E, CommunicationV. Terzic, D. Padovani, V. Balland, I. Artaud, E. Galardon
The complex chemistry taking place between the messenger 8-nitro-cGMP and the gaseous transmitter H2S is governed by dioxygen and thiols.
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One-step synthesis of diazaspiro[4.5]decane scaffolds with exocyclic double bonds

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5356-5359
DOI: 10.1039/C4OB00516C, CommunicationLidong Li, Qiong Hu, Pingping Zhou, Haifeng Xie, Xiaorong Zhang, Hao Zhang, Yadong Hu, Fei Yin, Yimin Hu
Unactivated yne-en-ynes reacted with a range of substituted aryl halides in the presence of Pd(OAc)2-PPh3 to afford diazaspiro[4.5]decane with exocyclic double bonds.
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Nazarov-like cyclization reactions

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5331-5345
DOI: 10.1039/C4OB00804A, Review ArticleMartin J. Di Grandi
This review discusses novel Nazarov cyclization variations and their application to the synthesis of complex molecules.
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Synthesis of 2,3-dihydro-1H-indazoles by Rh(III)-catalyzed C-H cleavage of arylhydrazines

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5469-5476
DOI: 10.1039/C4OB00921E, PaperJinzhong Yao, Ruokun Feng, Cong Lin, Zhanxiang Liu, Yuhong Zhang
A rhodium-catalyzed efficient method for the synthesis of 2,3-dihydro 1H-indazoles is described.
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In(OTf)3-catalysed one-pot versatile pyrrole synthesis through domino annulation of [small alpha]-oxoketene-N,S-acetals with nitroolefins

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5484-5491
DOI: 10.1039/C4OB00781F, PaperAbhijeet Srivastava, Gaurav Shukla, Anugula Nagaraju, Girijesh Kumar Verma, Keshav Raghuvanshi, Raymond C. F. Jones, Maya Shankar Singh
An operationally simple and efficient one-pot direct access to pyrroles has been achieved by annulation of [small alpha]-oxoketene-N,S-acetals with [small beta]-nitrostyrenes catalyzed by In(OTf)3 under solvent-free conditions.
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Synthesis and characterization of bisoxazolines- and pybox-copper(II) complexes and their application in the coupling of [small alpha]-carbonyls with functionalized amines

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5509-5516
DOI: 10.1039/C4OB01027B, PaperWei-Guo Jia, Dan-Dan Li, Yuan-Chen Dai, Hui Zhang, Li-Qin Yan, En-Hong Sheng, Yun Wei, Xiao-Long Mu, Kuo-Wei Huang
[(Dm-Pybox)CuBr2] is efficient in catalyzing [small alpha]-amination of ketones and esters, which tolerates functionality on the carbonyl and amine reaction components.
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Divergent synthesis of 2,3-dihydro-1H-pyrroles, 3-alkyl-1H-pyrroles and 3-alkenyl-1H-pyrroles from 2,4-pentadienenitriles and isocyanides

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5477-5483
DOI: 10.1039/C4OB00912F, PaperXiaoqing Xin, Xu Liu, Dingyuan Zhang, Rui Zhang, Yongjiu Liang, Fushe Han, Dewen Dong
A facile and divergent synthesis of 2,3-dihydro-1H-pyrroles, 3-alkyl-1H-pyrroles and 3-alkenyl-1H-pyrroles has been developed via a formal [2 + 3] annulation of 2,4-penta-dienenitriles and ethyl isocyanoacetate by the variation of reaction conditions.
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Dicyanobenzene and dicyanopyrazine derived X-shaped charge-transfer chromophores: comparative and structure-property relationship study

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5517-5527
DOI: 10.1039/C4OB00901K, PaperL. Dokladalova, F. Bures, W. Kuznik, I. V. Kityk, A. Wojciechowski, T. Mikysek, N. Almonasy, M. Ramaiyan, Z. Padelkova, J. Kulhanek, M. Ludwig
Structure-property relationships in X-shaped push-pull molecules with dicyanobenzene and dicyanopyrazine acceptors.
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Palladium-catalyzed annulation of benzynes with N-substituted-N-(2-halophenyl)formamides: synthesis of phenanthridinones

Org. and Biomol. Chem. - 9 July, 2014 - 06:17

Org. Biomol. Chem., 2014, 12,5351-5355
DOI: 10.1039/C4OB00997E, CommunicationYuan Yang, Hui Huang, Lijun Wu, Yun liang
Palladium-catalyzed annulation of benzynes with N-(2-halophenyl)formamides afforded phenanthridinones via tandem C-C bond formation.
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