Cobalt(II)[salen]-Catalyzed Selective Aerobic Oxidative Cross-Coupling between Electron-Rich Phenols and 2-Naphthols

Autor: Hagit Forckosh, Vlada Vershinin, Doron Pappo, Nagnath Yadav More, Hagai Reiss, Hadas Shalit
Rok vydání: 2019
Předmět:
Zdroj: The Journal of Organic Chemistry. 84:7950-7960
ISSN: 1520-6904
0022-3263
Popis: A selectivity-driven catalyst design approach was adopted to address chemoselectivity issues in the oxidative coupling of phenols. This approach was utilized for developing a Co(II)[salen]-catalyzed aerobic oxidative cross-coupling of phenols in a recyclable 1,1,1,3,3,3-hexafluoropropan-2-ol (HFIP) solvent. The waste-free conditions offer a sustainable entry to nonsymmetric biphenols via a mechanistic scheme that involves coupling of a liberated phenoxyl radical with a ligated 2-naphthoxyl radical.
Databáze: OpenAIRE