1-(2-hydroxyphenyl)-2-phenylethanone

Obtained by Fries rearrangement of phenyl phenylacetate,Also obtained by photo-Fries rearrangement of phenyl phenylacetate, ? in the presence of a- or b-cyclodextrin in organic solvents ; ? included in a Nafion membrane, at r.t. for 7 h (quantitative yield).? with aluminium chloride,
with titanium tetrachloride in chlorobenzene at 50° for 4 h (<5%);
? with polyphosphoric acid at 100° (1%);
? with or without 20% Bleicherde at 200° for 9 h (poor yields).