Polymerisation and related reactions involving nucleophilic aromatic substitution. Part 2. The rates of reaction of substituted 4-halogenobenzophenones with the salts of substituted hydroquinones
作者:Jonathan R. Lovering、John H. Ridd、David G. Parker、John B. Rose
DOI:10.1039/p29880001735
日期:——
4-X-4′-Fluorobenzophenones undergo the expected nucleophilic substitutionreactions with the alkalimetal salts of 4-Y-4′-hydroxydiphenyl ethers at 140 °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