Benefiting from the high electrochemical surface area brought by 2D nanosheet structure, MoS2 has received great research attention for hydrogen evolution reaction (HER). Recently it has demonstrated that by constructing...

Single-atom catalysts (SACs) have attracted increasing research interests owing to their unique electronic structures, quantum size effects and maximum utilization rate of atoms. Metal organic frameworks (MOFs) are good candidates to prepare SACs owing to the atomically dispersed metal nodes in MOFs and abundant N and C species to stabilize the single atoms. In addition, the distance of adjacent metal atoms can be turned by adjusting the size of ligands and adding volatile metal centers to promote the formation of isolated metal atoms. Moreover, the diverse metal centers in MOFs can promote the preparation of dual-atom catalysts (DACs) to improve the metal loading and optimize the electronic structures of the catalysts. The applications of MOFs derived SACs and DACs for electrocatalysis, including oxygen reduction reaction, oxygen evolution reaction, hydrogen evolution reaction, carbon dioxide reduction reaction and nitrogen reduction reaction are systematically summarized in this Review. The corresponding synthesis strategies, atomic structures and electrocatalytic performances of the catalysts are discussed to provide a deep understanding of MOFs-based atomic electrocatalysts. The catalytic mechanisms of the catalysts are presented, and the crucial challenges and perspectives are proposed to promote further design and applications of atomic electrocatalysts.

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The first palladium-catalyzed Sonogashira coupling of amides has been developed, which proceeds via a selective cleavage of the N-acylsaccharin C-N bond. Notably, the new approach employs N-acylsaccharins as coupling partners to give ynones in good to excellent yield. This protocol can be efficiently utilized in the synthesis of a broad array of ynones under low catalyst loading and Cu-free conditions.

The research progress of MOF-based bifunctional oxygen electrocatalysts for zinc–air batteries is reviewed and the main challenges and prospects for developing advanced MOF-based bifunctional electrocatalysts are proposed.

A rhodium-catalyzed C-H functionalization with activated amides by decarbonylation has been developed. Notably, this is the first C-H arylation employing N-acylsaccharins as coupling partners to give biaryls in good to excellent yields. The highlight of the work is the high tolerance of functional groups such as formyl, ester, and vinyl and the use of a removable directing group.

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Ap alladium-catalyzed cross-coupling of activated amides with arylboronic acids has been developed via C-N bond cleavage.T his approach demonstrated high tolerance to av ariety of alkyl, aryl, heterocyclic and vinyl substituents.U nsymmetrical ketones could be achieved in excellent yield under mild conditions with 1% catalyst loadings.Scheme 2. Scope of boronic acids in the cross-coupling of amides.Scheme3.Scope of amides in the cross-couplingw ith boronic acids.Scheme4.Control reactions.