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Abstract A practical method is introduced for the catalytic conversion of terminal alkynes into α-substituted vinyl boronic esters. The process employs catalytic amounts of nanoparticle-supported gold catalysts and catalytic amounts of copper to effect the overall transformation. 

Abstract Direct synthesis of CH₃COOH from CH₄and CO₂is an appealing approach for the utilization of two potent greenhouse gases that are notoriously difficult to activate. In thisCommunication, we report an integrated route to enable this reaction. Recognizing the thermodynamic stability of CO₂, our strategy sought to first activate CO₂to produce CO (through electrochemical CO₂reduction) and O₂(through water oxidation), followed by oxidative CH₄carbonylation catalyzed by Rh single atom catalysts supported on zeolite. The net result was CH₄carboxylation with 100 % atom economy. CH₃COOH was obtained at a high selectivity (>80 %) and good yield (ca. 3.2 mmol g⁻¹_catin 3 h). Isotope labelling experiments confirmed that CH₃COOH is produced through the coupling of CH₄and CO₂. This work represents the first successful integration of CO/O₂production with oxidative carbonylation reaction. The result is expected to inspire more carboxylation reactions utilizing preactivated CO₂that take advantage of both products from the reduction and oxidation processes, thus achieving high atom efficiency in the synthesis. 

Abstract Motivated by in silico predictions that Co, Rh, and Ir dopants would lead to low overpotentials to improve OER activity of Ni‐based hydroxides, we report here an experimental confirmation on the altered OER activities for a series of metals (Mo, W, Fe, Ru, Co, Rh, Ir) doped into γ‐NiOOH. The in situ electrical conductivity for metal doped γ‐NiOOH correlates well with the trend in enhanced OER activities. Density functional theory (DFT) calculations were used to rationalize the in situ conductivity of the key intermediate states of metal doped γ‐NiOOH during OER. The simultaneous increase of OER activity with intermediate conductivity was later rationalized by their intrinsic connections to the double exchange (DE) interaction between adjacent metal ions with variousdorbital occupancies, serving as an indicator for the key metal‐oxo radical character, and an effective descriptor for the mechanistic evaluation and theoretical guidance in design and screening of efficient OER catalysts.