Royal Society of Chemistry

Can the pentamethylcyclopentadienyl ligand act as a proton-relay in f-element chemistry? Insights from a joint experimental/theoretical study.

Dalton Transactions - 2 October, 2014 - 15:17
Dalton Trans., 2014, Accepted Manuscript
DOI: 10.1039/C4DT02387K, PaperChristos E. Kefalidis, Lionel Perrin, Carol Burns, David Berg, Laurent Maron, R Andersen
Isomerisation of buta-1,2-diene to but-2-yne by (Me5C5)2Yb is a thermodynamically favourable reaction, with the [capital Delta]rG[degree] estimated from experimental data at 298 K to be -3.0 kcal mol-1. It proceeds in...
The content of this RSS Feed (c) The Royal Society of Chemistry

Synthesis of 3-benzylisoquinolines by domino imination/cycloisomerisation of 2-propargylbenzaldehydes

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,8019-8030
DOI: 10.1039/C4OB01583E, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Monica Dell'Acqua, Valentina Pirovano, Giorgio Confalonieri, Antonio Arcadi, Elisabetta Rossi, Giorgio Abbiati
A modular entry to 2-propargylbenzaldehydes and their use in [small mu ]W-promoted cascade reaction with ammonium acetate for the synthesis of 3-benzylisoquinolines.
The content of this RSS Feed (c) The Royal Society of Chemistry

Asymmetric synthesis of (3S,1[prime or minute]S)-3-(1-amino-2,2,2-trifluoroethyl)-1-(alkyl)-indolin-2-one derivatives by addition of (S)-N-t-butylsulfinyl-3,3,3-trifluoroacetaldimine to 1-(alkyl)-indolin-2-ones

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7909-7913
DOI: 10.1039/C4OB01453G, CommunicationPing Qian, Chen Xie, Lingmin Wu, Haibo Mei, Vadim A. Soloshonok, Jianlin Han, Yi Pan
This paper for the first time presents the addition reactions between amide-derived nucleophiles and CF3-containing N-sulfinyl-imines, with synthetically useful diastereoselectivity and chemical yields.
The content of this RSS Feed (c) The Royal Society of Chemistry

Anion effects to deliver enhanced iridium catalysts for hydrogen isotope exchange processes

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7927-7931
DOI: 10.1039/C4OB01570C, CommunicationAlan R. Kennedy, William J. Kerr, Rory Moir, Marc Reid
Enhanced catalyst efficiency and solvent applicability has been achieved for hydrogen isotope exchange processes with Ir(I) complexes possessing larger, more weakly coordinating counterions.
The content of this RSS Feed (c) The Royal Society of Chemistry

Synthesis and photophysical properties of pyrene-based green fluorescent dyes: butterfly-shaped architectures

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7914-7918
DOI: 10.1039/C4OB01509F, CommunicationDevendar Goud Vanga, Mithun Santra, Ashok Keerthi, Suresh Valiyaveettil
A few pyrene-based fluorescent compounds were synthesized using Pd/Cu-catalyzed cross-coupling reaction.
The content of this RSS Feed (c) The Royal Society of Chemistry

Synthesis of phenanthridine derivatives via cascade annulation of diaryliodonium salts and nitriles

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7904-7908
DOI: 10.1039/C4OB01504E, CommunicationJian Li, Hongni Wang, Jiangtao Sun, Yang Yang, Li Liu
A cascade coupling reaction of diaryliodonium salts and nitriles via copper-catalysis toward phenanthridine derivatives has been developed.
The content of this RSS Feed (c) The Royal Society of Chemistry

Estimating the shape and size of supramolecular assemblies by variable temperature diffusion ordered spectroscopy

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7932-7936
DOI: 10.1039/C4OB01373E, CommunicationBenjamin M. Schulze, Davita L. Watkins, Jing Zhang, Ion Ghiviriga, Ronald K. Castellano
Reported is characterization of the self-assembly of [small pi]-conjugated oligomers, molecules studied recently in photovoltaic devices, using variable temperature diffusion ordered spectroscopy; the approach has allowed estimation of assembly size, shape, and molecularity.
The content of this RSS Feed (c) The Royal Society of Chemistry

Catalytic asymmetric synthesis of the pentacyclic core of (-)-nakadomarin A via oxazolidine as an iminium cation equivalent

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7919-7922
DOI: 10.1039/C4OB01678E, CommunicationNobuya Tsuji, Michael Stadler, Naoya Kazumi, Tsubasa Inokuma, Yusuke Kobayashi, Yoshiji Takemoto
A catalytic asymmetric synthesis of the pentacyclic core of (-)-nakadomarin A was achieved.
The content of this RSS Feed (c) The Royal Society of Chemistry

Synthesis of meta and para-substituted aromatic sulfonate derivatives of polydentate phenylazaphosphinate ligands: enhancement of the water solubility of emissive europium(III) EuroTracker[registered sign] dyes

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,8061-8071
DOI: 10.1039/C4OB01143K, PaperMartina Delbianco, Laurent Lamarque, David Parker
The use of a trifluoroethyl ester group to protect sulfonic acid moieties is used in the synthesis of a short series of water-soluble, very bright europium(III) complexes.
The content of this RSS Feed (c) The Royal Society of Chemistry

Zinc mediated activation of terminal alkynes: stereoselective synthesis of alkynyl glycosides

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7900-7903
DOI: 10.1039/C4OB01405G, CommunicationMadhu Babu Tatina, Anil Kumar Kusunuru, Syed Khalid Yousuf, Debaraj Mukherjee
Zinc mediated alkynylation reaction was studied for the preparation of C-glycosides from unactivated aromatic and aliphatic acetylenes. Different glycosyl donors such as glycals and anomeric acetates were tested towards in situ generated alkynyl zinc reagent using zinc dust and ethyl bromoacetate. The method provides a simple, mild and stereoselective access of alkynyl glycosides.
The content of this RSS Feed (c) The Royal Society of Chemistry

Conformational effects due to stereochemistry and C3-substituents in xylopyranoside derivatives as studied by NMR spectroscopy

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,8031-8035
DOI: 10.1039/C4OB01422G, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Jerk Ronnols, Sophie Manner, Ulf Ellervik, Goran Widmalm
Dynamic NMR spectroscopy revealed an unequally populated equilibrium at low temperature for a 3-deoxygenated compound.
The content of this RSS Feed (c) The Royal Society of Chemistry

The importance of chain conformational mobility during 5-exo-cyclizations of C-, N- and O-centred radicals

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7983-7992
DOI: 10.1039/C4OB01419G, PaperJohn C. Walton
The access angle of a radical centre to an alkene acceptor was found to be a key parameter that pinpointed difficult chain reorganizations as responsible for the slow 5-exo cyclizations of N-centred radicals.
The content of this RSS Feed (c) The Royal Society of Chemistry

The coumarin-pterocarpan conjugate - a natural product inspired hybrid molecular probe for DNA recognition

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,8087-8093
DOI: 10.1039/C4OB01360C, PaperShital K. Chattopadhyay, Indranil Kundu, Ratnava Maitra
Thermally induced cascade sigmatropic rearrangement of a butynyloxycoumarin derivative has led to a quick access to the coumarin-pterocarpan hybrid molecule. Biophysical studies together with molecular modeling show that this nature-inspired hybrid molecule is capable of binding to the minor groove of DNA as a non-conventional entity.
The content of this RSS Feed (c) The Royal Society of Chemistry

Diketopyrrolopyrrole: brilliant red pigment dye-based fluorescent probes and their applications

Chem. Soc. Rev. - 2 October, 2014 - 02:17

Chem. Soc. Rev., 2014, Advance Article
DOI: 10.1039/C4CS00248B, Tutorial ReviewMatinder Kaur, Dong Hoon Choi
The review summarizes the recent development of various DPP-based fluorescent probes for tracing biologically and environmentally important species.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry

Room temperature alkynylation of H-phosphi(na)tes and secondary phosphine oxides with ethynylbenziodoxolone (EBX) reagents

Chem. Commun. - 1 October, 2014 - 08:54

Chem. Commun., 2014, 50,12923-12926
DOI: 10.1039/C4CC06851C, CommunicationC. Chun Chen, Jerome Waser
We report the alkynylation of H-phosphi(na)tes and secondary phosphine oxides at room temperature using ethynylbenziodoxolone (EBX) reagents.
The content of this RSS Feed (c) The Royal Society of Chemistry

Substituent controlled reactivity switch: selective synthesis of [small alpha]-diazoalkylphosphonates or vinylphosphonates via nucleophilic substitution of alkyl bromides with Bestmann-Ohira reagent

Chem. Commun. - 1 October, 2014 - 08:54

Chem. Commun., 2014, 50,12896-12898
DOI: 10.1039/C4CC05684A, CommunicationMukund M. D. Pramanik, Atul Kumar Chaturvedi, Namrata Rastogi
We report a substituent controlled nucleophilic displacement of alkyl bromides with Bestmann-Ohira reagent yielding either dimethyl diazoalkylphosphonates or (E)-vinylphosphonates.
The content of this RSS Feed (c) The Royal Society of Chemistry

Self-healing and moldable material with the deformation recovery ability from self-assembled supramolecular metallogels

Chem. Commun. - 1 October, 2014 - 08:54

Chem. Commun., 2014, 50,12847-12850
DOI: 10.1039/C4CC06154C, CommunicationLiwei Yan, Shaohua Gou, Zhongbin Ye, Shihong Zhang, Lihua Ma
A non-covalent metallogel system with self-healing, deformation recoverable, moldable and bottom-up load-bearing properties was prepared using tetrazolyl derivatives and Pd(OAc)2.
The content of this RSS Feed (c) The Royal Society of Chemistry

Imaging molecular crystal polymorphs and their polycrystalline microstructures in situ by ultralow-frequency Raman spectroscopy

Chem. Commun. - 1 October, 2014 - 08:54

Chem. Commun., 2014, 50,12973-12976
DOI: 10.1039/C4CC05955G, CommunicationChun-Fu Chang, Hajime Okajima, Hiro-o Hamaguchi, Shinsuke Shigeto
Ultralow-frequency Raman spectroscopy enables clear distinction between different crystal polymorphs and visualization of grain boundaries within individual polymorphs in situ.
The content of this RSS Feed (c) The Royal Society of Chemistry

An electrochemical sensor for selective TNT sensing based on Tobacco mosaic virus-like particle binding agents

Chem. Commun. - 1 October, 2014 - 08:54

Chem. Commun., 2014, 50,12977-12980
DOI: 10.1039/C4CC06735E, CommunicationFaheng Zang, Konstantinos Gerasopoulos, Xiao Zhu Fan, Adam D. Brown, James N. Culver, Reza Ghodssi
The diffusion modulation through the binding of targets on the Tobacco mosaic virus-like particle binding agents enables selective electrochemical sensing.
The content of this RSS Feed (c) The Royal Society of Chemistry

A new class of electrocatalysts of supporting Pt on an Engel-Brewer alloy substrate: a demonstration for oxidation of ethylene glycol

Chem. Commun. - 1 October, 2014 - 08:54

Chem. Commun., 2014, 50,12981-12984
DOI: 10.1039/C4CC04006F, CommunicationX. F. Yang, W. Xu, M. Li, B. E. Koel, J. G. Chen
A Pt monolayer supported on an Engel-Brewer alloy, Hf-Ir, is highly active in oxidizing ethylene glycol into CO2. This enhanced performance originates from the lattice mismatch between surface Pt and the Hf-Ir support and the highly reducible Hf oxide adjacent to Pt sites.
The content of this RSS Feed (c) The Royal Society of Chemistry

WebElements: the periodic table on the WWW [http://www.webelements.com/]

Copyright 1993-2011 Mark Winter [The University of Sheffield and WebElements Ltd, UK]. All rights reserved.