Synthesis of Dibenzofurans by Palladium-Catalysed Tandem Denitrification/C-H Activation
作者:Zhenting Du、Jing Zhou、Changmei Si、Weili Ma
DOI:10.1055/s-0031-1289881
日期:2011.12
A palladium-catalysed method for intramolecular cyclisation of ortho-diazonium salts of diaryl ethers to give dibenzofurans is described. The protocol uses 3 mol% palladium acetate as the catalyst in refluxing ethanol in the absence of base. palladium acetate - dibenzofurans - diazonium salts