95523-79-8Relevant academic research and scientific papers
Polimerisation and Related Reactions involving Nucleophilic Aromatic Substitution. Part 2. The Rates of Reaction of Substituted 4-Halogenobenzophenones with the Salts of Substituted Hydroquinones
Lovering, Jonathan R.,Ridd, John H.,Parker, David G.,Rose, John B.
, p. 1735 - 1738 (2007/10/02)
4-X-4'-fluorobenzophenones undergo the expected nucleophilic substitution reactions with the alkali metal salts of 4-Y-4'-hydroxydiphenyl ethers at 140 deg C in diphenyl sulphone as solvent: the Hammett ρ value is 1.02 for the X substituents and -0.34 for the Y substituents.The order of reactivity of the alkali metal salts is Cs > K > Na.The related reaction of fluorobenzophenone with potassium 4-Z-phenolates under the same conditions gives a ρ value of -2.28.This result has been used to calculate the corresponding rate coefficients for the reaction of the mono- and di-potassium salts of hydroquinone with fluorobenzophenone.
