Begum, Tahshina published the artcilePalladium-on-Carbon-Catalyzed Coupling of Nitroarenes with Phenol: Biaryl Ether Synthesis and Evidence of an Oxidative-Addition-Promoted Mechanism, Application In Synthesis of 61343-99-5, the main research area is nitroarene phenol palladium coupling catalyst; ether biaryl preparation.
Nucleophilic substitution in nitroarenes to form biaryl ethers is of fundamental importance in organic synthesis. Under non-catalytic conditions, this can occur if highly activated nitroarenes are used or if the nucleophile is activated by a strong stoichiometric base. We established a new method involving the use of a ligand-free palladium-on-carbon (Pd/C) catalyst for the cross-coupling of activated nitroarenes with relatively non-nucleophilic phenol derivatives, including naphthol, in the absence of harsh bases. Control experiments, hot filtration, the three-phase test, and inductively coupled plasma at. emission spectroscopy anal. revealed that the catalysis proceeded through an usual oxidative addition step of the nitroarene to Pd/C, which resulted in the release of active palladium particles having extremely high catalytic activity. DFT calculations revealed the origin of the selectivity of the activated nitroarenes.
European Journal of Organic Chemistry published new progress about Aromatic ethers Role: SPN (Synthetic Preparation), PREP (Preparation) (biaryl). 61343-99-5 belongs to class chlorides-buliding-blocks, name is 4-(4-Chlorophenoxy)benzaldehyde, and the molecular formula is C13H9ClO2, Application In Synthesis of 61343-99-5.
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