Dihydroxybenzophenone oximes, their preparation and...

Details Dihydroxybenzophenone oximes, their preparation and... Dihydroxybenzophenone oximes, their preparation and...

C - Chemistry, Metallurgy

07

C

260/558.1, 260/5

C07C 235/56 (2006.01) C07C 251/48 (2006.01) C07C 255/62 (2006.01)

Patent

CA 2007806

ABSTRACT Dihydroxybenzophenone oximes are prepared by reacting a dihydroxybenzophenone with an acid adduct of hydroxylamine in the presence of a base and an inert solvent or reaction medium and dihydroxybenzanilides are prepared by the thermal rearrangement of dihydroxybenzophenone oximes. The rearrangement reaction can optionally employ acid catalysts for conversion of the oximes at lower temperatures. 37,281-F

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