- A photoredox-neutral Smiles rearrangement of 2-aryloxybenzoic acids
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We report on the use of visible light photoredox catalysis for the radical Smiles rearrangement of 2-aryloxybenzoic acids to obtain aryl salicylates. The method is free of noble metals and operationally simple and the reaction can be run under mild batch or flow conditions. Being a redox neutral process, no stoichiometric oxidants or reductants are needed.
- Gonzalez-Gomez, Jose C.,Ramirez, Nieves P.,Lana-Villarreal, Teresa,Bonete, Pedro
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supporting information
p. 9680 - 9684
(2017/11/30)
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- Synthesis of diaryl ethers using an easy-to-prepare, air-stable, soluble copper(I) catalyst
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We have found that bromo(triphenylphosphine)copper(I), an air-stable and soluble copper(I) complex, can be used as a catalyst in the synthesis of diaryl ethers. Using this catalyst, we have synthesized diaryl ethers from electron-rich aryl bromides and electron-rich phenols in the presence of cesium carbonate, in 17-24 h, in NMP. We also found that electron-deficient aryl bromides couple with phenols in the presence of cesium carbonate, in 6 h in NMP at 70°C, without the catalyst.
- Gujadhur,Venkataraman
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p. 2865 - 2879
(2007/10/03)
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