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The synthesis of well-defined planar polymers presents a significant challenge for chemists seeking to investigate their potential for use in emerging technologies. Now, a two-dimensional conjugated aromatic polymer has been synthesized via endogenous solid-state polymerization of pre-arranged monomers, and its performance as an organic anode in an ambient temperature sodium cell tested.
The construction of diversified compound libraries from identical substrates is attractive but remains a challenge in asymmetric synthesis. Here, we demonstrate switchable regioselective [6+2], [4+2] or [2+2] cycloadditions with α′-alkylidene-2-cyclopentenones via mild aminocatalysis, producing a spectrum of chiral frameworks with high structural diversity and molecular complexity.
2-aminothiazole — a hybrid of prebiotic amino acid and nucleotide precursors — sequentially accumulates and purifies glycolaldehyde and glyceraldehyde from complex mixtures in the order required for ribonucleotide synthesis, dynamically resolves glyceraldehyde from its ketose-isomer dihydroxyacetone, and provides the first strategy to select natural amino acids from abiotic aldehydes and ketones.
Understanding how oxygen-evolution reaction (OER) catalysts work is important for the development of efficient energy storage technologies. It has now been shown that lattice oxygen participates in O2 generation during the OER on some highly active metal oxides and that this behaviour becomes more prevalent with greater metal–oxygen covalency.
NaOtBu — an alkoxide salt — enables simple access to low-oxidation-state catalysis using sustainable first-row transition metals (Fe, Co, Mn, Ni). The approach works across a wide range of reductive alkene and alkyne functionlization reactions including hydroboration, hydrosilylation, hydrogenation, hydrovinylation and [2π+2π] cyclization reactions.