The presidents of the chemical societies of France (SFC), Germany (GDCh), Japan (CSJ), the Netherlands (KNCV), the UK (RSC), and the USA (ACS) recently pledged on behalf of about 300,000 members to "work together to promote global sustainable development, demand responsible use of resources, and ensure that the next generation of scientists protects and maintains the well-being of Earth and its inhabitants." They deem this issue an urgent one, and that chemistry is absolutely essential to the development of solutions.
Not super here: Supercritical CO2 as a solvent does not activate alkyl halides by SN1-type ionization for alkylation reactions as recently claimed.
Yun X. Qiao, Nils Theyssen, Tobias Eifert, Marcel A. Liauw, Giancarlo Franciò, Karolin Schenk, Walter Leitner, Manfred T. Reetz
Chem. Eur. J., February 20, 2017, DOI: 10.1002/chem.201604151. Read article
A stable MOF: The metal–organic framework MIL-100(Cr) is presented as a promising new heterogeneous catalyst with high activity, selectivity and reusability in the solvent-free synthesis of styrene carbonate from CO2 at mild conditions. Two strategies to increase the reusability of the MOF catalysts are proposed.
Masoumeh Taherimehr, Ben Van de Voorde, Lik H. Wee, Johan A. Martens, Dirk E. De Vos, Paolo P. Pescarmona
ChemSusChem, February 06, 2017, DOI: 10.1002/cssc.201601768. Read article
The decarboxylative alkylation of carboxylic acids can be efficiently promoted by visible light under air at room temperature by using 9-mesitylene-10-methylacridinium perchlorate ([Acr-Mes]ClO4) as photocatalyst. A range of readily available starting materials are well tolerated in this transition-metal-free protocol.
Nieves P. Ramirez, Jose C. Gonzalez-Gomez
Eur. J. Org. Chem., January 31, 2017, DOI: 10.1002/ejoc.201601478. Read article
Salinity gradient energy recovery: The environmentally friendly 2,6-dihydroxyanthraquinone (2,6-DHAQ) and ferrocyanide redox couples are used to integrate reverse electrodialysis stacks and flow batteries, called RED-FB systems, for the efficient capture, storage, and discharge of salinity gradient energy. The maximum power density reaches 3.0 kW m−2-anode and the energy density is 2.4 kWh m−3-anolyte, with an energy efficiency of 30 %.
Xiuping Zhu, Taeyoung Kim, Mohammad Rahimi, Christopher A. Gorski, Bruce E. Logan
ChemSusChem, January 25, 2017, DOI: 10.1002/cssc.201601220. Read article