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Phosphorus compounds with unique chirality due to the presence of a P-stereocentre are obtained through stereoselective catalytic cross-coupling of phosphoramidites and aryl halides. Axial-to-central transfer of chirality is shown to provide ready access to various classes of P-chirogenic compounds that are key to catalysis and drug development.
A new class of catalysts based on ternary ruthenium complex hydrides are developed for low-temperature ammonia synthesis. They support a non-dissociative reaction path for dinitrogen reduction, in which lithium or barium cations stabilize the NxHy intermediates and the electron- and H-rich [RuH6]4– anionic centres facilitate an energetically balanced multi-step reaction for ammonia synthesis.