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Hot article: Getting to grips with solar cells
17 November 2008
UK scientists provide a new insight into the parameters that determine the efficiency of organic solar cells.
Glowing report for explosive detection
14 November 2008
Israeli scientists have developed a sensitive method for detecting an explosive used by terrorists.
Hot article: Adding to the confusion
13 November 2008
US scientists show that N-substituted pyrazole dialdehydes react with tripyrrane to give aza-analogues of N-confused porphyrins.
Contents list for Chemical Communications, issue 45, 2008
Front cover
Chem. Commun., 2008, 5857
DOI: 10.1039/b819171a
Inside front cover
Chem. Commun., 2008, 5858
DOI: 10.1039/b819172g
Contents and Chemical Biology
Chem. Commun., 2008, 5859
DOI: 10.1039/b819173p
Molecular BioSystems issue 12 contents pages
Chem. Commun., 2008, 5879
DOI: 10.1039/b819174n
Feature Articles
Evolution of multi-component anion relay chemistry (ARC): construction of architecturally complex natural and unnatural products
Amos B. Smith, III and William M. Wuest,
Chem. Commun., 2008, 5883
DOI: 10.1039/b810394a
Efficient construction of architecturally complex natural and unnatural products is the hallmark of organic chemistry. Anion relay chemistry has the potential to provide the chemist with a powerful synthetic tactic, enabling efficient, rapid elaboration of structurally complex scaffolds in a single operation with precise stereochemical control.
Coordination-driven self-assembly of functionalized supramolecular metallacycles
Brian H. Northrop, Hai-Bo Yang and Peter J. Stang,
Chem. Commun., 2008, 5896
DOI: 10.1039/b811712h
Coordination-driven self-assembly of ditopic Pt(II) metal acceptors and bis-pyridyl organic donors, either or both of which contain covalently linked functional groups, provides facile access to novel polyfunctional supramolecular materials wherein the stoichiometry and location of functional groups as well as the size and shape of the assembly can be precisely controlled.
Communications
Redefining the atom: atomic charge densities produced by an iterative stockholder approach
Timothy C. Lillestolen and Richard J. Wheatley,
Chem. Commun., 2008, 5909
DOI: 10.1039/b812691g
Atomic charge densities of formamide generated using an iterative stockholder approach. This new computational method allows molecular electron densities to be divided into atoms having intuitively correct shapes and charges.
A flavin-based [2]catenane
Stuart T. Caldwell, Graeme Cooke, Brian Fitzpatrick, De-Liang Long, Gouher Rabani and Vincent M. Rotello,
Chem. Commun., 2008, 5912
DOI: 10.1039/b813779j
Enhanced HTML article available
We report the synthesis, solid-state and preliminary solution properties of a flavin-based [2]catenane.
Boronic acid-linked fluorescent and colorimetric probes for copper ions
K. M. K. Swamy, Sung-Kyun Ko, Soo Kyung Kwon, Ha Na Lee, Chun Mao, Joung-Min Kim, Keun-Hyeung Lee, Jinheung Kim, Injae Shin and Juyoung Yoon,
Chem. Commun., 2008, 5915
DOI: 10.1039/b814167c
The first examples of boronic acid-linked fluorescent and colorimetric chemosensors for copper ions are reported.
Structure and superconductivity of LiFeAs
Michael J. Pitcher, Dinah R. Parker, Paul Adamson, Sebastian J. C. Herkelrath, Andrew T. Boothroyd, Richard M. Ibberson, Michela Brunelli and Simon J. Clarke,
Chem. Commun., 2008, 5918
DOI: 10.1039/b813153h
Superconductivity in LiFeAs samples demonstrates that superconducting anti-PbO-type [FeAs]- anionic layers occur with a wide range of As–Fe–As bond angles.
The first effective extractant for trivalent rhodium in hydrochloric acid solution
Hirokazu Narita, Kazuko Morisaku and Mikiya Tanaka,
Chem. Commun., 2008, 5921
DOI: 10.1039/b813593b Enhanced HTML article available
The tertiary amine compound containing two N-disubstituted amide groups, N-n-hexyl-bis(N-methyl-N-n-octylethylamide)amine (HBMOEAA), can effectively extract and back-extract Rh3+ from hydrochloric acid solution.
Enhancing SMM properties via axial distortion of MnIII3 clusters
Ross Inglis, Leigh F. Jones, Georgios Karotsis, Anna Collins, Simon Parsons, Spyros P. Perlepes, Wolfgang Wernsdorfer and Euan K. Brechin,
Chem. Commun., 2008, 5924
DOI: 10.1039/b811796a
Replacement of carboxylate and solvent with facially capping tripodal ligands helps to enhance the SMM properties of ferromagnetic [MnIII3] triangles.
Enzyme catalyzed site-specific protein labeling and cell imaging with quantum dots
Murat Sunbul, Michelle Yen, Yekui Zou and Jun Yin,
Chem. Commun., 2008, 5927
DOI: 10.1039/b812162a Enhanced HTML article available
We have developed an efficient method for one-step covalent labeling of cell surface proteins with quantum dots based on enzyme catalyzed site-specific modification of short peptide tags.
Disaccharide recognition by binuclear copper(II) complexes
Susanne Striegler and Moses G. Gichinga,
Chem. Commun., 2008, 5930
DOI: 10.1039/b813356e Enhanced HTML article available
In spite of comparable binding strengths and intermetallic Cu–Cu distances, disaccharides bind with different overall geometry to similar binuclear copper(II) complexes in aqueous solution.
Solid-state 115In NMR study of indium coordination complexes
Fu Chen, Guibin Ma, Ronald G. Cavell, Victor V. Terskikh and Roderick E. Wasylishen,
Chem. Commun., 2008, 5933
DOI: 10.1039/b814326a
The feasibility of solid-state 115In NMR is demonstrated by an examination of four representative indium coordination complexes.
Carbon coated microshells containing nanosized Gd(III) oxidic phases for multiple bio-medical applications
Aldo Arrais, Mauro Botta, Stefano Avedano, Giovanni Battista Giovenzana, Eliana Gianolio, Enrico Boccaleri, Pier Luigi Stanghellini and Silvio Aime,
Chem. Commun., 2008, 5936
DOI: 10.1039/b811554k
A novel material containing Gd(III) oxidic phases irreversibly confined in encapsulating sp2 carbon coating shells are potential candidates for multiple diagnostic and therapeutic bio-medical applications.
The effect of complex stoichiometry in supramolecular chirality transfer to zinc bisporphyrin systems
Juan Etxebarria, Anton Vidal-Ferran and Pablo Ballester,
Chem. Commun., 2008, 5939
DOI: 10.1039/b812819g Enhanced HTML article available
The self-assembly of Zn–bisporphyrin tweezers induced by coordination to enantiopure 1,2-diaminocyclohexane features supramolecular chirality induction and inversion processes that are exclusively controlled by the stoichiometry of the assembled complexes.
Dispersion polymerisation in supercritical CO2 using macro-RAFT agents
Mengmeng Zong, Kristofer J. Thurecht and Steven M. Howdle,
Chem. Commun., 2008, 5942
DOI: 10.1039/b812827h
Fluorinated macro-RAFT agents can act as in situ stabilisers while exhibiting good control over block copolymers formed by dispersion polymerisation in supercritical CO2 to yield well-defined spherical particles with a fluorinated 
halo
.
CuS nanotubes for ultrasensitive nonenzymatic glucose sensors
Xiaojun Zhang, Guangfeng Wang, Aixia Gu, Yan Wei and Bin Fang,
Chem. Commun., 2008, 5945
DOI: 10.1039/b814725f
CuS nanotubes made up of nanoparticles were successfully prepared in large quantities in an O/W microemulsion system under low temperature. The as-prepared CuS nanotube modified electrode was used as an enzyme-free glucose sensor.
Low toxic, thermoresponsive dendrimers based on oligoethylene glycols with sharp and fully reversible phase transitions
Wen Li, Afang Zhang, Yong Chen, Kirill Feldman, Hua Wu and A. Dieter Schlüter,
Chem. Commun., 2008, 5948
DOI: 10.1039/b814192d
First and second generation dendrimers based on three-fold branched oligoethylene glycol dendrons have been efficiently synthesized; the latter show characteristic thermoresponsive behavior and negligible cytotoxicity.
Cell adhesive hydrogels synthesised by copolymerisation of arg-protected Gly-Arg-Gly-Asp-Ser methacrylate monomers and enzymatic deprotection
Lynne Perlin, Sheila MacNeil and Stephen Rimmer,
Chem. Commun., 2008, 5951
DOI: 10.1039/b813392a Enhanced HTML article available
Cell adhesion promoting peptide monomers containing arginine protected with an aryl sulfonamide are polymerised to form a hydrogel. The protected group is removed by glutathione-S-transferase to yield cell adhesive hydrogels.
New method for the preparation of nonuniform distributed Co/SiO2 catalysts
Jingwei Li, Yunjie Ding, Xianming Li, Guiping Jiao, Tao Wang, Weimiao Chen and Hongyuan Luo,
Chem. Commun., 2008, 5954
DOI: 10.1039/b813641f
Egg-shell, egg-yolk and egg-white types of Co/SiO2 catalysts were prepared by reducing the capillary pressure driving force in the impregnation process and utilizing the entrapped air to inhibit the entrance of impregnation or leaching solution into the cores of catalyst pellets during the preparation procedure.
A new bio-active surface for protein immobilisation via copper-free 
click
between azido SAM and alkynyl Fischer carbene complex
Sudeshna Sawoo, Piyali Dutta, Amarnath Chakraborty, Rupa Mukhopadhyay, Othman Bouloussa and Amitabha Sarkar,
Chem. Commun., 2008, 5957
DOI: 10.1039/b813296h
A Fischer carbene complex grafted on an azido-terminated monolayer by copper-free click reaction (step 1) permits a convenient, instantaneous and covalent anchoring of BSA (step 2) to SAMs.
Structural probing of Zn(II), Cd(II) and Hg(II) binding to human ubiquitin
Giuseppe Falini, Simona Fermani, Giovanna Tosi, Fabio Arnesano and Giovanni Natile,
Chem. Commun., 2008, 5960
DOI: 10.1039/b813463d Enhanced HTML article available
A structural investigation performed on adducts of human ubiquitin with group-12 metal ions reveals two preferential anchoring sites, His68 and Met1. The protein aggregation stereochemistry appears to be driven by the clustering of deshielded backbone hydrogen-bond patches, and metal ions foster this process.
Fluorenes as new molecular scaffolds for carbon–carbon 
-bond cleavage reaction: acylfluorenylation of arynes
Hiroto Yoshida, Takeshi Kishida, Masahiko Watanabe and Joji Ohshita,
Chem. Commun., 2008, 5963
DOI: 10.1039/b814597k Enhanced HTML article available
Synchronous installation of acyl and fluorenyl moieties into adjacent positions of aromatic skeletons has been achieved. The ease of formation of fluorenyl anions, being attributable to their aromatic stabilization, is the key to the successful reaction.
Heterolytic dihydrogen activation with the 1,8-bis(diphenylphosphino)naphthalene/B(C6F5)3 pair and its application for metal-free catalytic hydrogenation of silyl enol ethers
Huadong Wang, Roland Fröhlich, Gerald Kehr and Gerhard Erker,
Chem. Commun., 2008, 5966
DOI: 10.1039/b813286k Enhanced HTML article available
1,8-Bis(diphenylphosphino)naphthalene forms an antagonistic/frustrated Lewis pair with B(C6F5)3 that activates dihydrogen reversibly and catalyzes the hydrogenation of silyl enol ethers.
2D-Rectangular c2mm mesoporous silica nanoparticles with tunable elliptical channels and lattice dimensions
Chia-Min Yang, Ching-Yi Lin, Yasuhiro Sakamoto, Wei-Chia Huang and Li-Ling Chang,
Chem. Commun., 2008, 5969
DOI: 10.1039/b812967c
Mesoporous silica nanoparticles with a two-dimensional center-rectangular (plane group c2mm) lattice and coiled elliptical channels have been synthesized.
Tunable wettability by counterion exchange at the surface of electrostatic self-assembled multilayers
Liming Wang, Yuan Lin, Bo Peng and Zhaohui Su,
Chem. Commun., 2008, 5972
DOI: 10.1039/b813557f
A novel method to tune surface wettability rapidly and reversibly has been developed by ion exchange of the counterions at the surface of a multilayer film assembled via electrostatic interaction.
Iron-catalysed aziridination reactions promoted by an ionic liquid
Agathe C. Mayer, Anne-Frédérique Salit and Carsten Bolm,
Chem. Commun., 2008, 5975
DOI: 10.1039/b813655f
Olefin aziridinations have been achieved using a simple catalytic system on the basis of iron(II) triflate, quinaldic acid, an ionic liquid and a preformed iminoiodinane bearing a pyridine backbone.
Chaetoglobins A and B, two unusual alkaloids from endophytic Chaetomium globosum culture
Hui Ming Ge, Wei Yun Zhang, Gang Ding, Patchareenart Saparpakorn, Yong Chun Song, Supa Hannongbua and Ren Xiang Tan,
Chem. Commun., 2008, 5978
DOI: 10.1039/b812144c Enhanced HTML article available
Chaetoglobins A ( 1) and B ( 2), two azaphilone alkaloid dimers with an unprecedented skeleton, were characterized from an endophytic fungus Chaetomium globosum with the former valuable for anti-tumor drug discovery.
Revealing molecular self-assembly and geometry of non-covalent halogen bonding by solid-state NMR spectroscopy
Markus Weingarth, Noureddine Raouafi, Benjamin Jouvelet, Luminita Duma, Geoffrey Bodenhausen, Khaled Boujlel, Bernd Schöllhorn and Piotr Tekely,
Chem. Commun., 2008, 5981
DOI: 10.1039/b813237b
We report a new spectroscopic fingerprint of halogen bond-driven self-assembling aggregates.
8-Nitroguanosines as chemical probes of the protein S-guanylation
Yohei Saito, Hirobumi Taguchi, Shigemoto Fujii, Tomohiro Sawa, Eriko Kida, Chizuko Kabuto, Takaaki Akaike and Hirokazu Arimoto,
Chem. Commun., 2008, 5984
DOI: 10.1039/b810771h Enhanced HTML article available
The importance of a cyclic phosphate moiety of NO2-cGMP in upregulation of heme oxygenase-1 via protein S-guanylation was examined. Fluorescence detection of S-guanylated proteins by a nitroguanosine-based probe is also described.
Resin-assisted solvothermal synthesis of metal–organic frameworks
Yi Du, Amber L. Thompson and Dermot OHare,
Chem. Commun., 2008, 5987
DOI: 10.1039/b814180k
Transition metal-exchanged polymer resin beads have been used as a heterogeneous controlled-release source of metal cations in high yielding, phase pure solvothermal syntheses of novel transition metal–organic frameworks.
A high sensitive and specific QDs FRET bioprobe for MNase
Shan Huang, Qi Xiao, Zhi Ke He, Yi Liu, Philip Tinnefeld, Xiong Rui Su and Xiao Niu Peng,
Chem. Commun., 2008, 5990
DOI: 10.1039/b815061c Enhanced HTML article available
A simple and rapid method to detect MNase with high sensitivity and specificity based on the new QD-FRET bioprobe has been developed, which can be extended to the realistic diagnostic assay conditions.
Cooperativity between 
– and H-bonding interactions–a supramolecular complex formed by C60 and exTTF
José Santos, Bruno Grimm, Beatriz M. Illescas, Dirk M. Guldi and Nazario Martín,
Chem. Commun., 2008, 5993
DOI: 10.1039/b811358k Enhanced HTML article available
Cooperative – and H-bonding interactions afford a supramolecular complex from C60 and exTTF exhibiting exceptional stability (Ka
106 M-1); upon photoexcitation, a short living radical–ion pair (
= 9.3 ps) is formed.
Highly selective detection of 5-methylcytosine using photochemical ligation
Masayuki Ogino, Yuuta Taya and Kenzo Fujimoto,
Chem. Commun., 2008, 5996
DOI: 10.1039/b813677g Enhanced HTML article available
The authors report the nonenzymatic detection of 5-methylcytosine by using template-directed photoligation through 5-cyanovinyl-2
-deoxyuridine (CU) with high selectivity. A new methylation detection method using a photoligation-based DNA chip assay is presented.
Microorganism-based assemblies of luminescent conjugated polyelectrolytes
Libing Liu, Xinrui Duan, Huibiao Liu, Shu Wang and Yuliang Li,
Chem. Commun., 2008, 5999
DOI: 10.1039/b814518k
A novel approach was developed for the assembly of fluorescent conjugated polyelectrolytes into tubes on the micrometre scale of tunable length using fungi as living templates.
Chromogenic detection of nerve agent mimics
Ana M. Costero, Salvador Gil, Margarita Parra, Pedro M. E. Mancini, Ramón Martínez-Máñez, Félix Sancenón and Santiago Royo,
Chem. Commun., 2008, 6002
DOI: 10.1039/b811247a Enhanced HTML article available
A new chromogenic reagent for the detection of warfare agent simulants in vapour and neutral mixed aqueous environments is reported.
Highly sensitive turn-on fluorescent sensor for Hg2+ in aqueous solution based on structure-switching DNA
Zidong Wang, Jung Heon Lee and Yi Lu,
Chem. Commun., 2008, 6005
DOI: 10.1039/b812755g Enhanced HTML article available
A simple design of turn-on fluorescent sensor for mercury was demonstrated based on structure-switching DNA with a low detection limit of 3.2 nM and high selectivity.
A facile route to bulk high-Z polymer composites for gamma ray scintillation
Yong Sheng Zhao, Zhibin Yu, Ali Douraghy, Arion F. Chatziioannou, Yueqi Mo and Qibing Pei,
Chem. Commun., 2008, 6008
DOI: 10.1039/b813571a
Bulk transparent polymer composites for gamma ray detection were prepared from liquid solution formulations. The composites exhibit fluorescence resonance energy transfer from the high-Z compounds to a conjugated polymer also admixed in the composites.
Catalytic glycerol conversion into 1,2-propanediol in absence of added hydrogen
Els DHondt, Stijn Van de Vyver, Bert F. Sels and Pierre A. Jacobs,
Chem. Commun., 2008, 6011
DOI: 10.1039/b812886c Enhanced HTML article available
Conversion of glycerol into high yields of 1,2-propanediol in absence of added hydrogen is possible with Pt impregnated NaY zeolite characterized by extra-zeolitic metal particles combined with zeolite Brønsted acidity.
Rhodium-catalysed anomalous dimerization of styrenes involving the cleavage of the ortho C–H bond
Mamoru Tobisu, Isao Hyodo, Masahiro Onoe and Naoto Chatani,
Chem. Commun., 2008, 6013
DOI: 10.1039/b806285d Enhanced HTML article available
The dimerization of styrene derivatives in the presence of a rhodium catalyst proceeds to give stilbene derivatives, in which the ortho C–H bond of styrenes is cleaved and functionalized.
Unprecedented biological cyclopropanation in the biosynthesis of FR-900848
Tetsuo Tokiwano, Hiroaki Watanabe, Takashi Seo and Hideaki Oikawa,
Chem. Commun., 2008, 6016
DOI: 10.1039/b809610d Enhanced HTML article available
We were able to show the predominant incorporation of a single enantiomer and intact incorporation of multiply labelled synthetic diketide precursors, which established the intermediacy of cyclopropanated diketide in the biosynthesis of FR-900848.
The effects of pressure on valence tautomeric transitions of dinuclear cobalt complexes
Bao Li, Feng-Lei Yang, Jun Tao, Osamu Sato, Rong-Bin Huang and Lan-Sun Zheng,
Chem. Commun., 2008, 6019
DOI: 10.1039/b814944e
The effects of pressure on valence tautomeric transition of two complexes, [{Co(tpa)}2(dhbq)]·(PF6)3 ( I·(PF6)3) and [{Co(dpqa)}2(dhbq)]·(PF6)3 ( II·(PF6)3) were investigated. The results show that external pressure makes the SC + ET transition process of the two complexes into a general SC process only.
Ultrathin epitaxial superconducting niobium nitride films grown by a chemical solution technique
Guifu Zou, Menka Jain, Honghui Zhou, Hongmei Luo, Scott A. Baily, Leonardo Civale, Eve Bauer, T. Mark McCleskey, Anthony K. Burrell and Quanxi Jia,
Chem. Commun., 2008, 6022
DOI: 10.1039/b815066d
Ultrathin epitaxial superconducting NbN (18 nm) films, exhibiting a superconducting transition temperature of 14 K, were grown on SrTiO3 (STO) by a chemical solution technique, polymer assisted deposition (PAD).
Asymmetric catalytic aza-Morita–Baylis–Hillman reaction (aza-MBH): an interesting functional group-caused reversal of asymmetric induction
Min Shi, Ming-Juan Qi and Xu-Guang Liu,
Chem. Commun., 2008, 6025
DOI: 10.1039/b814500h Enhanced HTML article available
A highly efficient aza-Morita–Baylis–Hillman reaction (aza-MBH reaction) of N-tosyl salicylaldehyde imines with 
,
-unsaturated ketones has been achieved by using -isocupreidine (-ICPD) as the catalyst (10 mol%) to give the corresponding adducts in good to high yields (90%–quant.) and excellent ees (up to 99% ee).
Torsionally restricted tetradentate fluorophore: a swivelling ligand platform for ratiometric sensing of metal ions
Xuan Jiang, Byung Gyu Park, Justin A. Riddle, Bong June Zhang, Maren Pink and Dongwhan Lee,
Chem. Commun., 2008, 6028
DOI: 10.1039/b812261j Enhanced HTML article available
Restricted swivelling motions around a rigid molecular axle allows a new [n,]-conjugated molecule to function as a tight metal chelator as well as a ratiometric fluorescence sensor.
Fabrication of open-ended high aspect-ratio anodic TiO2 nanotube films for photocatalytic and photoelectrocatalytic applications
Chin-Jung Lin, Wen-Yueh Yu, Yen-Tien Lu and Shu-Hua Chien,
Chem. Commun., 2008, 6031
DOI: 10.1039/b813937g
A facile process is introduced to chemically remove the bottom caps of anodic TiO2 nanotube arrays that exhibit high photocatalytic activity and photoelectrocatalytic efficiency.
A new n-type low bandgap conjugated polymer P-co-CDT: synthesis and excellent reversible electrochemical and electrochromic properties
Jianhui Hou, Shaoqing Zhang, Teresa L. Chen and Yang Yang,
Chem. Commun., 2008, 6034
DOI: 10.1039/b812489b
A n-type low bandgap conjugated polymer based on perylene diimide and cyclopenta[2,1-b:3,4-b]dithiophene, which exhibits excellent reversible electrochemical properties in both n-doping/dedoping and p-doping/dedoping processes, was designed, synthesized and characterized.
PF6- Hydrolysis as a route to unique uranium phosphate materials
Nicholas P. Deifel, K. Travis Holman and Christopher L. Cahill,
Chem. Commun., 2008, 6037
DOI: 10.1039/b813819b
The in situ formation of PO43- through the hydrolysis of hexafluorophosphate anions (PF6-) is utilized as a route to a new uranium phosphate fluoride with a unique pentameric secondary building unit.
Modular assembly of novel DNA-based catalysts
Núria Sancho Oltra and Gerard Roelfes,
Chem. Commun., 2008, 6039
DOI: 10.1039/b814489c Enhanced HTML article available
A novel modular strategy towards the assembly of DNA-based catalysts containing a covalently anchored metal complex is presented.
Addition of H2 to distannynes under ambient conditions
Yang Peng, Marcin Brynda, Bobby D. Ellis, James C. Fettinger, Eric Rivard and Philip P. Power,
Chem. Commun., 2008, 6042
DOI: 10.1039/b813442a
H2 reacts with a series of distannynes at ca. 25 °C and 1 atmosphere pressure to give Sn2H2Ar2 products whose structures depend on the type of terphenyl ligand employed.
Reaction of a sterically encumbered iron(I) aryl/arene with organoazides: formation of an iron(V) bis(imide)
Chengbao Ni, James C. Fettinger, Gary J. Long, Marcin Brynda and Philip P. Power,
Chem. Commun., 2008, 6045
DOI: 10.1039/b810941a
The synthesis, structural and spectroscopic characterization of a stable Fe(V) imido complex is reported.
Modular chiral dendritic monodentate phosphoramidite ligands for Rh(II)-catalyzed asymmetric hydrogenation: unprecedented enhancement of enantioselectivity
Feng Zhang, Yong Li, Zhi-Wei Li, Yan-Mei He, Shou-Fei Zhu, Qing-Hua Fan and Qi-Lin Zhou,
Chem. Commun., 2008, 6048
DOI: 10.1039/b815380a Enhanced HTML article available
Modular chiral dendrimers with monodentate phosphoramidite ligands located at the core were synthesized and exhibited unprecedented enhancement of enantioselectivity in the Rh-catalyzed asymmetric hydrogenations.
Activation of aryl halides by Cu0/1,10-phenanthroline: Cu0 as precursor of CuI catalyst in cross-coupling reactions
Mounir Mansour, Roberto Giacovazzi, Armelle Ouali, Marc Taillefer and Anny Jutand,
Chem. Commun., 2008, 6051
DOI: 10.1039/b814364a Enhanced HTML article available
The activation of aryl iodides or bromides by Cu0/1,10-phenanthroline generates CuI(phenanthroline)S2+ (S = acetonitrile) which can be a catalyst for cross-coupling reactions.
A quantitative structure–reactivity relationship in decarboxylative Claisen rearrangement reactions of allylic tosylmalonate esters
Donald Craig and Nikolay K. Slavov,
Chem. Commun., 2008, 6054
DOI: 10.1039/b812306c Enhanced HTML article available
Decarboxylative Claisen rearrangement reactions of allylic tosylmalonates 1 show first-order kinetics and give a straight-line plot (
=ca.-2.3) of lg[kS/kH] vs.
+S, indicative of positive-charge development at the benzylic carbon atom in the transition-state.
Back matter
Chem. Commun., 2008, 6057
DOI: 10.1039/b819190p
Back cover
Chem. Commun., 2008, 6059
DOI: 10.1039/b819175c
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