New discoveries in chemical research and development in 2021. Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage. In a patent,Which mentioned a new discovery about Quality Control of 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)ethanone, Quality Control of 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)ethanone
The iron-catalyzed oxidative activation of the (O)C[sbnd]C bond in ketones has been developed. This method enables direct synthesis of esters by the reaction between ketones and alcohols via conversion of the (O)C[sbnd]C bond to the (O)C[sbnd]O bond. The reaction runs selectively: the (O)C[sbnd]CAlkyl bond is activated, while the (O)C[sbnd]CAryl bond remains intact (i.e., iron-catalyzed intermolecular anti-Baeyer-Villiger activation of the (O)C[sbnd]C bond). The reaction conditions are carefully optimized and allow the production of esters with yields of up to 95%. The method is based on the inexpensive and commercially available catalyst (FeCl3), oxidant ((NH4)2S2O8), and solvent (DCE) without using any ligands or additives.
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