The article abstracts of various research papers that were recently been published in sister journals of the "Chemistry: A European Journal," including papers on synthesis of lactones, biosynthesis of lactic acid and homogeneous catalysis.
This paper reports on the development of an efficient synthesis of enantiopure phospha[6]helicenes through a [2+2+2] alkyne cyclotrimerization reaction. The corresponding gold complexes proved to be highly efficient both in terms of catalytic activity and enantioselectivity in [2+2] and [4+2] cycloaddition reactions. Furthermore, in the presence of an external nucleophile, such as water or alcohols, the tandem cyclization/addition reactions take place in high yields and excellent diastereo- and enantioselectivities. [ABSTRACT FROM AUTHOR]
The nuclear magnetic resonance (NMR) detectability of several TB‐relevant agents have been significantly improved through the use of the parahydrogen‐based hyperpolarization protocol signal amplification by reversible exchange (SABRE) in conjunction with the 2H‐labelling of key sites within their molecular structures and the 2H‐labelling of the magnetization‐transfer catalyst. The T1 relaxation times and polarization levels of these agents are quantified under test conditions to produce a protocol to identify structurally optimized motifs for future detection in MRI. For more information see the Full Paper by S. B. Duckett et al. on page 16990 ff. [ABSTRACT FROM AUTHOR]