Synthesis of Tri- and Diaryloxybenzenes by Rhodium-Catalyzed Complete Intermolecular [2+2+2] Cycloaddition of Aryl Ethynyl Ethers

[摘要]：We have established that a cationic rhodium(I)-H-8-BINAP complex catalyzes the complete intermolecular homo [2+2+2] cycloaddition of aryl ethynyl ethers and cross-[2+2+2] cycloaddition of aryl ethynyl ethers with electron-deficient monoalkynes, leading to tri- and diaryloxybenzenes, respectively, at room temperature.

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