Chem. Commun.

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Double axial chirality promoted asymmetric [2,3] Stevens rearrangement of N-cinnamyl L-alanine amide-derived ammonium ylides

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6860-6862
DOI: 10.1039/C4CC02536A, CommunicationEiji Tayama, Noriko Naganuma, Hajime Iwamoto, Eietsu Hasegawa
The base-induced asymmetric [2,3] Stevens rearrangement of N-cinnamyl tetraalkylammonium ylides derived from L-alanine amides proceeds via a double axially chiral intermediate to afford the corresponding [small alpha]-substituted alanine derivatives with high enantio- and diastereoselectivities.
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Catalytic asymmetric aminolactonization of 1,2-disubstituted alkenoic acid esters: Efficient construction of aminolactones with an all-carbon quaternary stereo-centre

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6913-6916
DOI: 10.1039/C4CC01944J, CommunicationSaumen Hajra, Sk Md Samim Akhtar, Sk Mohammad Aziz
Catalytic and enantioselective aminolactonization of alkenoic acid esters via in situ aziridination led to trans-[gamma]- and [small delta]-lactones with up to 98% ee in good to excellent yields.
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A dye-sensitized Pt@UiO-66(Zr) metal-organic framework for visible-light photocatalytic hydrogen production

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7063-7066
DOI: 10.1039/C4CC01086H, CommunicationJiao He, Jiaqiang Wang, Yongjuan Chen, Jinping Zhang, Deliang Duan, Yao Wang, Zhiying Yan
The rhodamine B dye was used to sensitize a Pt@UiO-66(Zr) metal-organic framework for visible-light driven photocatalytic hydrogen production from a triethanolamine aqueous solution.
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Extended and functionalized porous iron(III) tri- or dicarboxylates with MIL-100/101 topologies

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6872-6874
DOI: 10.1039/C4CC02175D, CommunicationPatricia Horcajada, Hubert Chevreau, Daniela Heurtaux, Farah Benyettou, Fabrice Salles, Thomas Devic, Alfonso Garcia-Marquez, Cihang Yu, Hubert Lavrard, Claire L. Dutson, Emmanuel Magnier, Guillaume Maurin, Erik Elkaim, Christian Serre
Nanometric isoreticular and functionalized mesoporous iron(III) polycarboxylates MIL-100/101 have been synthesized with exceptional porosities and good solvent-stability.
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Silver-mediated radical cyclization: construction of [capital Delta]2-isoxazolines from [small alpha]-halo ketoximes and 1,3-dicarbonyl compounds

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6906-6908
DOI: 10.1039/C4CC02084G, CommunicationYan-Yun Liu, Xu-Heng Yang, Ji Yang, Ren-Jie Song, Jin-Heng Li
A new silver-mediated radical cyclization of [small alpha]-halo ketoximes with 1,3-dicarbonyl compounds for the assembly of [capital Delta]2-isoxazolines is presented.
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Directed functionalization of 1,2-dihydropyridines: stereoselective synthesis of 2,6-disubstituted piperidines

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6883-6885
DOI: 10.1039/C4CC02220C, CommunicationGuillaume Pelletier, Lea Constantineau-Forget, Andre B. Charette
A practical and highly stereoselective approach to access 2,6-disubstituted piperidines using an amidine auxiliary is reported. These were reduced to the saturated piperidine rings with high diastereoselectivity.
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Chiral squaramide-catalyzed asymmetric synthesis of pyranones and pyranonaphthoquinones via cascade reactions of 1,3-dicarbonyls with Morita-Baylis-Hillman acetates of nitroalkenes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6973-6976
DOI: 10.1039/C4CC02279C, CommunicationDivya K. Nair, Rubem F. S. Menna-Barreto, Eufranio N. da Silva Junior, Shaikh M. Mobin, Irishi N. N. Namboothiri
Catalytic asymmetric synthesis of [small alpha]-lapachones from hydroxynaphthoquinone and Morita-Baylis-Hillman acetates of nitroalkenes is described.
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Diastereoselective allylation and crotylation of N-tert-butanesulfinyl imines with allylic alcohols

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6898-6901
DOI: 10.1039/C4CC02317J, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Olga Soares do Rego Barros, Juan Alberto Sirvent, Francisco Foubelo, Miguel Yus
The allylation and crotylation of N-tert-butanesulfinyl imines with allylic alcohols under palladium catalysis proceeded in a stereoselective fashion with anti-diastereoselectivity.
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Simulation of the self-assembly of simple molecular bricks into Sierpinski triangles

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6843-6845
DOI: 10.1039/C4CC01344A, CommunicationD. Nieckarz, P. Szabelski
Monte Carlo simulations reveal the surface-confined self-assembly of simple organic ligands (orange) and metal atoms (blue) into hierarchical fractal structures resembling the Sierpinski triangle.
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A tetraphenylethene-based zinc complex as a sensitive DNA probe by coordination interaction

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7060-7062
DOI: 10.1039/C4CC02172J, CommunicationZece Zhu, Li Xu, Hao Li, Xiang Zhou, Jingui Qin, Chuluo Yang
A new DNA probe based on coordination interactions exhibited higher sensitivity than the corresponding probe based on electrostatic interactions.
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TPPi as a flame retardant for rechargeable lithium batteries with sulfur composite cathodes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7011-7013
DOI: 10.1039/C4CC01151A, CommunicationHao Jia, Jiulin Wang, Fengjiao Lin, Charles W. Monroe, Jun Yang, Yanna NuLi
In this work, TPPi was adopted as a flame retardant additive into the traditional electrolyte 1 M LiPF6/EC + DMC (1 : 1, v/v) which not only enhanced the carbonates' thermal properties but also improved the electrochemical performances of rechargeable Li-S batteries.
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Zn(II) and Cu(II) complexes of a new thiophene-based salphen-type ligand: solution-processable high-performance field-effect transistor materials

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7036-7039
DOI: 10.1039/C4CC01360C, CommunicationAshish K. Asatkar, Satyaprasad P. Senanayak, Anjan Bedi, Snigdha Panda, K. S. Narayan, Sanjio S. Zade
Organic field-effect transistor (OFET) devices based on solution-processed Cu(II) and Zn(II) complexes of a new thiophene-based salphen-type ligand exhibited high p-type mobilities (up to 1.5 cm2 V-1 s-1).
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Structurally-modified subphthalocyanines: molecular design towards realization of expected properties from the electronic structure and structural features of subphthalocyanine

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6949-6966
DOI: 10.1039/C4CC01526F, Feature ArticleSoji Shimizu, Nagao Kobayashi
This feature article summarizes recent contributions of the authors in the synthesis of structurally-modified subphthalocyanines, which covers (1) modification of the conjugated system, (2) core-modification, and (3) exterior-modification.
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Nitrogen-doped carbon nanotubes and graphene composite structures for energy and catalytic applications

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6818-6830
DOI: 10.1039/C4CC00146J, Feature ArticleWon Jun Lee, Uday Narayan Maiti, Ju Min Lee, Joonwon Lim, Tae Hee Han, Sang Ouk Kim
The rise of N-doped graphitic carbons has renewed research interest in carbon based composites, particularly in their grand prospects for energy and catalytic applications.
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Charge instability of symmetry broken dipolar states in quadrupolar and octupolar triphenylamine derivatives

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6902-6905
DOI: 10.1039/C3CC47514J, CommunicationShanmugam Easwaramoorthi, Pichandi Thamaraiselvi, Kumaraguru Duraimurugan, Arockiam Jesin Beneto, Ayyanar Siva, Balachandran Unni Nair
The quadrupolar and octupolar cyano triphenylamines shows symmetry broken dipolar charge transfer state, however, the thus formed state is distinctly different from that of its dipolar analogue.
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A highly stable metal- and nitrogen-doped nanocomposite derived from Zn/Ni-ZIF-8 capable of CO2 capture and separation

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6894-6897
DOI: 10.1039/C4CC01087F, CommunicationRui Li, Xiaoqian Ren, Xiao Feng, Xingguo Li, Changwen Hu, Bo Wang
A facile strategy is reported for the synthesis of a highly stable and in situ metal- and nitrogen-doped porous composite capable of CO2 capture and separation. This novel composite can survive extensive heating and can be fully reactivated after recycling.
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pH triggered reversible photoinduced electron transfer to and from carbon nanoparticles

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6890-6893
DOI: 10.1039/C4CC01669F, CommunicationSomen Mondal, Manjunath Chatti, Arabinda Mallick, Pradipta Purkayastha
Dopamine functionalized carbon nanoparticles (CNPs) act as efficient photoinduced electron donor-acceptor systems depending on the pH of the medium.
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Efficient access to the non-reducing end of low molecular weight heparin for fluorescent labeling

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7004-7006
DOI: 10.1039/C4CC00708E, CommunicationZongqiang Wang, Chen Shi, Xuri Wu, Yijun Chen
A novel thiol fluorophore was selectively attached to the non-reducing end of low molecular weight heparin for use in the FRET assay of heparinase II.
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High CO2/N2 and CO2/CH4 selectivity in a chiral metal-organic framework with contracted pores and multiple functionalities

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6886-6889
DOI: 10.1039/C4CC00334A, CommunicationXiaoxia Lv, Liangjun Li, Sifu Tang, Chao Wang, Xuebo Zhao
A MOF with contracted pores and multiple functionalities showing high selectivities on CO2/N2 and CO2/CH4 gas mixtures was constructed.
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Ditopic bis-terdentate cyclometallating ligands and their highly luminescent dinuclear iridium(III) complexes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6831-6834
DOI: 10.1039/C4CC01808G, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Pierre-Henri Lanoe, Chi Ming Tong, Ross W. Harrington, Michael R. Probert, William Clegg, J. A. Gareth Williams, Valery N. Kozhevnikov
Luminescent dinuclear Ir(III) complexes of a bis-N[logical and]C[logical and]N-coordinating ligand are reported with two metal ions bound to a central pyrimidine. A pair of enantiomers and a meso form have been structurally characterised.
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