Nitric Acid → HCID 20291119, compound

Participants

Reaction Steps

Nitric acid (4 ml) was added dropwise to a stirred solution of bis(5-chloro-2-hydroxyphenyl)ketone (2.7 g) in glacial acetic acid (50 ml). The solution was stirred at room temperature for 1 hr and during this time a yellow solid separated from solution. The mixture was poured into ice water and the product collected by filtration. Thin layer chromatography indicated that the product was a mixture of two compounds which were separated by column chromatography on silica gel. Elution with hexane containing increasing amounts of ethyl acetate afforded 5-chloro-2-hydroxyphenyl 5-chloro-2-hydroxy-3-nitrophenyl ketone (150 mg) m.p. 153° C., followed by bis-(5-chloro-2-hydroxy-3-nitrophenyl)ketone (1.5 g), m.p. 187° C.

Provenance & Evidence