Abstract
AbstractA general, rapid and highly efficient method for the synthesis of diaryl ethers under the assistance of microwave irradiation was described. A series of diaryl ethers were prepared by direct coupling of phenols and aryl halides in good to excellent yields in anhydrous DMF or NMP at 150 °C within 20 min. The presence of water was found to have a significant impact on the Ullmann C‐O coupling reaction between aryl halides and phenols under microwave irradiation.
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