Solvent-controlled selective synthesis of biphenols and quinones via oxidative coupling of phenols.
More, Nagnath Yadav;Jeganmohan, Masilamani;
Chemical communications (Cambridge, England)2017Vol. 53pp. 9616-9619
219
more2017solventcontrolledchemical
Abstract
A regioselective synthesis of unsymmetrical and symmetrical biphenols and binaphthols via oxidative coupling of phenols or naphthols in the presence of KSO in CFCOOH under ambient conditions is described. Interestingly, the 1 : 1 ratio of HO and CHCN solvent mixtures at 80 °C instead of CFCOOH provided substituted unsymmetrical quinones. A gram-scale synthesis of biphenols and binaphthols was demonstrated.