A new, highly effective β-diketiminatophosphane palladium catalyst can be used in fluoride-free Hiyama coupling reactions of unactivated aryl chlorides in water.
Myung-Jong Jin and colleagues from the Inha University, in Korea, have published their findings in ChemComm. Fancy finding out more about this catalyst and the reaction conditions required? Then download the article today, which is free to access until the 9th December and why not blog some comments below too!
This is the first time, say scientists in China, that copper-catalysed decarboxylative reactions have enabled cross-coupling of alkynyl carboxylic acids with aryl halides, under relatively mild reaction conditions.
Jingsong You, Ying Xue and colleagues from Sichuan University in China believe the process is not only simple and convenient in terms of the reaction conditions and purification, but also tolerant of a variety of functional groups. This is a practical route to give unsymmetric internal arylalkynes. The team have also shown that benzofurans can be smoothly prepared by a one-pot domino protocol on the basis of decarboxylative cross-coupling of 2-iodophenol.
The team have published their findings in ChemComm so why not download the article today, which will be free to access until the 9th December.
A team of scientists from Canada and Korea have developed a mutant glycosidase enzyme that can catalyse the synthesis of an O-linked sugar called isoprimeveroside in near quantitative yield.
Stephen Withers, at the University of British Columbia, Canada, and colleagues report their findings in their ChemComm communication, which is part of the ChemComm ‘Enzymes & Proteins’ web-based themed issue. The communication is free to access until 9th December 2010.
Simple aromatic compounds can self-assemble into low-dimensional aggregates with controlled architecture, according to US scientists.
Yi Liu, at Lawrence Berkeley National Laboratory, and colleagues have shown that single molecule-thick two-dimensional nanosheets self-assemble from symmetric hexakis(alkoxy)triphenylene derivatives, and then further stack to give multilayered nanofibres.
Anisotropic nanostructures of organic semiconductors have good electronic and optical properties, making them suitable morphologies for advanced optoelectronic applications. But controlling the ordering of such materials at the molecular level remains a challenging task as it is affected by many structural and environmental aspects.
This simple solution process provides an attractive and convenient bottom-up path to hierarchical self-assembly nanostructures, Liu says.
For more information, read Liu’s ChemComm communication, free to access until 9th December.
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A collaboration of Finnish and Russian scientists has resulted in the creation of a gold-diphosphine helical cage that plays host to small organic molecules, like dichloromethane and carbon disulphide. Igor Koshevoy and colleagues from the University of Eastern Finland, and Sergey Tunikv and co-workers from St. Petersburg State University have shown that the assembly of these cages occur via an unprecedented transformation.
Why not discover what is so unprecedented about the transformation process and download the article today? The authors have published their results in ChemComm, which will be free to access until the 9th December.
Organic conjugated poymer networks are found to be promising candidates for photocatalytic water splitting, say scientists in Germany.
Klaus Müllen and colleagues from the Max-Planck-Institute for Polymer Research in Mainz and the Max Planck Institute of Colloids and Interfaces in Potsdam, report a straightforward synthesis that leads to fully organic photocatalysts showing enhanced long-time stability.
Would you like to read more? Then why not download the article today, which has been published in ChemComm and will be free to acess until the 9th December.
Cellulose nanocrystals can be transformed into pH sensing nanoparticles by dual fluorescent labelling employing a one-pot procedure, explain scientists in the UK and Denmark.
In particular, Wim Thielemans, Jonathan Aylott and co-workers from the University of Nottingham alongside colleagues from the University of Southern Denmark, have shown that the thiol–ene click reaction can be used to modify the cellulose nanocrystals surface, leading to many future applications in sensing or tissue engineering.
Fancy finding out more? Download the article today and blog some comments on the science below. The communication has been published in ChemComm where it will be free to access until the 9th December.
Japanese scientists claim to be breaking new ground by making optimal use of limited noble metal resources with one of the most abundant, renewable bioresources – cellulose.
They made gold nanoparticles (AuNPs) were made using crystalline cellulose single nanofibres (CSNFs), tailored from native cellulose. The AuNPs@CSNFs composite showed excellent catalytic efficiency, with a turnover efficiency of 840 times more than conventional polymer-supported AuNPs.
Takuya Kitaoka from Kyushu University and colleagues from the University of Tokyo, have published their findings in ChemComm, which is free to access until the 3rd December. So why not download the article today and blog some feedback below?
This month sees the following articles in ChemComm that are in the top ten most accessed:-
Lighting porphyrins and phthalocyanines for molecular photovoltaics
M. Victoria Martínez-Díaz, Gema de la Torre and Tomás Torres
Chem. Commun., 2010, 46, 7090-7108, DOI: 10.1039/C0CC02213F , Feature Article
Advances in selective conversions by heterogeneous photocatalysis
Giovanni Palmisano, Elisa García-López, Giuseppe Marcì, Vittorio Loddo, Sedat Yurdakal, Vincenzo Augugliaro and Leonardo Palmisano
Chem. Commun., 2010, 46, 7074-7089, DOI: 10.1039/C0CC02087G , Feature Article
A “switching on” fluorescent chemodosimeter of selectivity to Zn2+ and its application to MCF-7 cells
Zhanxian Li, Mingming Yu, Lifeng Zhang, Ming Yu, Jinxia Liu, Liuhe Wei and Hongyan Zhang
Chem. Commun., 2010, 46, 7169-7171, DOI: 10.1039/C0CC01687J , Communication
Aryne cycloaddition: highly efficient chemical modification of graphene
Xing Zhong, Jun Jin, Shuwen Li, Zhiyong Niu, Wuquan Hu, Rong Li and Jiantai Ma
Chem. Commun., 2010, 46, 7340-7342, DOI: 10.1039/C0CC02389B, Communication
Host–guest chemistry with bi- and tetra-nuclear macrocyclic metallasupramolecules
Ying-Feng Han, Hao Li and Guo-Xin Jin
Chem. Commun., 2010, 46, 6879-6890, DOI: 10.1039/C0CC00770F, Feature Article
Copper N-heterocyclic carbene (NHC) complexes as carbene transfer reagents
Marc R. L. Furst and Catherine S. J. Cazin
Chem. Commun., 2010, 46, 6924-6925, DOI: 10.1039/C0CC02308F, Communication
Thermosensitive gating effect and selective gas adsorption in a porous coordination nanocage
Dan Zhao, Daqiang Yuan, Rajamani Krishna, Jasper M. van Baten and Hong-Cai Zhou
Chem. Commun., 2010, 46, 7352-7354, DOI: 10.1039/C0CC02771E , Communication
Controlled growth of inorganic nanocrystals: size and surface effects of nuclei
Shuling Shen and Xun Wang
Chem. Commun., 2010, 46, 6891-6899, DOI: 10.1039/C0CC00900H , Feature Article
Golf ball-shaped PLGA microparticles with internal pores fabricated by simple O/W emulsion
Mi Ri Kim, Seungwoo Lee, Jung-Ki Park and Kuk Young Cho
Chem. Commun., 2010, 46, 7433-7435, DOI: 10.1039/C0CC01738H , Communication
High-connected mesoporous metal–organic framework
Xiaojun Gu, Zhang-Hui Lu and Qiang Xu
Chem. Commun., 2010, 46, 7400-7402, DOI: 10.1039/C0CC02808H , Communication
Why not take a look at the articles today and blog your thoughts and comments below.
Fancy submitting an article to ChemComm? Then why not submit to us today or alternatively email us your suggestions.
We are delighted to invite nominations for the very first ChemComm Emerging Investigator Lectureship. The lectureship, which will be awarded annually, will recognise an emerging scientist in the early stages of their independent academic career.
To qualify
To be eligible for the ChemComm Emerging Investigator Lectureship, the candidate should be within the first eight years of completing their PhD.
Award details
The recipient of the award will be invited to present a lecture at three different locations over a 12 month period. It is expected that at least one of the locations will be a conference. The recipient will receive a contribution of £1500 towards travel and accommodation costs. S/he will also be presented with a certificate and be asked to contribute a ChemComm Feature Article.
Nominations
Those wishing to make a nomination should send the following details to the ChemComm Editorial Office by 28th February 2011:
Please note that self nomination is not permitted.
Selection procedure
Following the close of nominations, referees will be contacted for their comments. They will be asked to state their relationship to the nominee.
The ChemComm Editorial Board will draw up a short-list of candidates based on the information provided by the referees and nominator. Short-listed candidates will be asked to provide a supporting statement justifying why they deserve the award. The recipient of the award will then be selected and endorsed by the ChemComm Editorial Board.
