Jee Young Kim, Ji Chan Park, Aram Kim, A. Young Kim, Hyun Ju Lee, Hyunjoon Song and Kang Hyun Park Cu2O Nanocube-Catalyzed Cross-Coupling of Aryl Halides with Phenols via Ullmann Coupling European Journal of Inorganic Chemistry 2009
An efficient cross-coupling reaction of aryl halides and phenol with 0.1 mol-% Cu2O nanocubes as recyclable catalyst and Cs2CO3 as the base in THF at 150 °C is reported. The process is simple and allows the formation of a diverse range of diaryl ethers in excellent yields.
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