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A light and oxygen-enabled sodium trifluoromethanesulfinate-mediated selective oxidation of C–H bonds has been developed. High-value-added aromatic ketones and carboxylic acids were easily prepared in high-to-excellent yields using readily available starting materials.

A room temperature decarboxylative ortho-acylation of acetanilides with α-oxocarboxylic acids has been developed via a novel Eosin Y with Pd dual catalytic system. This dual catalytic reaction shows a broad substrate scope and good functional group tolerance, and an array of ortho-acylacetanilides can be afforded in high yields under mild conditions.

A simple and efficient method for the preparation of α-arylthioethers through a visible-light-induced direct thiolation at α-C(sp(3))-H of ethers with diaryl disulfides was developed using acridine red as a novel photocatalyst. The reactions occurred at ambient conditions and generated the corresponding products in good to excellent yields, ignoring steric effect of disulfides.

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