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June 02, 2015
ChemPlusChem 6/2015: Highly Important Paper
Articles that reviewers rate in the top 20% in terms of importance deserve special attention. We are pleased to highlight a paper of this caliber in Issue 6: Mohammad Gholinejad et al. describe a novel heterogeneous catalystconsisting of CuFe2O3 and Pd0 nanoparticles assembled on silica microparticles (see picture). This catalyst effects the Sonogashira coupling reaction of aryl iodides and bromides with various alkynes, a reaction that typically requires both palladium and copper cocatalysts, neither of which are readily recovered. The added extra of the new catalyst is that it can be recovered easily with a magnet, then rinsed, dried, and reused.
Recently Published Articles
- Preparation and Photoelectric and Magnetic Properties of Cu2MnSnS4 Nanosheets
Prof. Liang Shi, Yanan Li, Chunyan Wu and Prof. Ren-Kui Zheng
Article first published online: 29 JUN 2015 | DOI: 10.1002/cplu.201500163
Cu2MnSnS4 nanosheets oriented parallel to the (002) crystal plane have been synthesized through a simple solution method. The Cu2MnSnS4 nanosheets show enhanced conductivity under light irradiation, disclosing their suitability for photovoltaic applications (see figure). Weakly ferromagnetic behavior at low temperatures was found for the Cu2MnSnS4 nanosheets.
- Utilizing Benign Oxidants for Selective Aerobic Oxidations Using Heterogenized Platinum Nanoparticle Catalysts
Christopher S. Hinde, Arran M. Gill, Dr. Peter P. Wells, Prof. T. S. Andy Hor and Dr. Robert Raja
Article first published online: 29 JUN 2015 | DOI: 10.1002/cplu.201500195
Tuned cats.: Well-defined platinum nanoparticles are generated in situ by anion extrusion within porous framework architectures (see figure). In these catalysts the local structural environment of the active site is controlled by the calcination conditions, and thus industrially significant, sustainable catalytic oxidation reactions are possible with tert-butyl hydroperoxide (TBHP) or oxygen.
- Dithienothiophene-Based Triphenylamine-Containing Branched Copolymers for Electrochromic Applications
Ching Mui Cho, Wei Teng Neo, Dr. Qun Ye, Prof. Xuehong Lu and Dr. Jianwei Xu
Article first published online: 24 JUN 2015 | DOI: 10.1002/cplu.201500192
Broad-spectrum results: A series of electrochromic dithienothiophene-based branched copolymers with triphenylamine as a co-monomer are described. Reversible multicolored optical changes are observed and depend on the triphenylamine content (see figure). The effect of triphenylamine on the electrochromic properties is also described.
- Application of Fragment-Based Drug Discovery against DNA Gyrase B
Dr. Guo-Ying Chen, Dr. Fui Mee Ng, Dr. Yih Wan Tan, Dr. Anders Poulsen, Weiguang Seetoh, Grace Lin, Dr. CongBao Kang, Siew Wen Then, Nur Huda Ahmad, Ying Lei Wong, Hui Qi Ng, Dr. C. S. Brian Chia, Qiu Ying Lau, Dr. Jeffrey Hill, Dr. Alvin W. Hung and Dr. Thomas H. Keller
Article first published online: 24 JUN 2015 | DOI: 10.1002/cplu.201500197
In a bind: Fragment-based screening has identified 14 fragments that bind to Escherichia coli gyrase B. A fragment growing on a low-affinity fragment (KD=233 μM, IC50=628 μM) has led to the development of a new class of potent phenyl aminopyrazoles inhibitors against E. coli gyrase B (IC50=160 nM).
- A Facile and One-Step Synthesis of Visible-Light-Responsive Silver and Mesoporous Carbon Comodified Carbon–Zinc Oxide Composites
Dr. Fangxiao Wang, Dr. Lin Liang, Dr. Lei Shi, Dr. Mengshuai Liu and Prof. Dr. Jianmin Sun
Article first published online: 23 JUN 2015 | DOI: 10.1002/cplu.201500158
Light harvesting: Visible-light-responsive Ag and mesoporous carbon (mC) comodified CZnO composites with excellent photocatalytic activity have been fabricated by using a green, economical process in CO2-expanded ethanol without additional precipitant or mesoscale templates. The remarkable improvement in activity is attributed to synergistic effects between modified Ag and mC, doped C, and small-sized ZnO (see figure).