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An Efficient Novel Ligand for Copper-Catalyzed Formation of Diaryl Ethers

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1-Phenylbutane-1,3-dione was found to be an efficient novel ligand for copper-catalyzed formation of diaryl ethers. With this ligand methyl 4-iodobenzoate reacted with various phenols to give the corresponding diaryl ethers with reasonable yields and efficiency. The optimized reaction was carried out at 100 °C using 1,4-dioxane as solvent, Cs2CO3 as base, CuI as the catalyst and 1-phenylbutane-1,3-dione as the ligand.

Keywords: 1-Phenylbutane-1,3-dione; Coppercatalyzed; CuI; Diaryl ether; Methyl 4-iodobenzoate; Ullmann coupling reaction

Document Type: Research Article

Publication date: October 1, 2007

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  • Letters in Organic Chemistry publishes original letters on all areas of organic chemistry including synthesis, bioorganic, medicinal, natural products, organometallic, supramolecular, molecular recognition and physical organic chemistry. The emphasis is placed on publishing quality papers very rapidly. Letters are processed rapidly and take full advantage of the Internet technology both for the submission and the review of the manuscripts.
    The journal is essential reading for all organic chemists both in academia and industry.

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