P-Anisidine → HCID 12016873, compound

Participants

Reaction Steps

1-Bromo-2,3,4-trifluoro-5-[(3-hydroxy-4-methoxyphenyl)aminosulfonyl]benzene (Example 12) and 1-Bromo-4,5,6-trifluoro-2-[(3-hydroxy-4-methoxyphenyl)aminosulfonyl]benzene (Example 13) were prepared in a manner similar to that described in Example 1 by replacing 4-fluoro-3-nitrophenylsulfonyl chloride with a mixture of 5-bromo-2,3,4-trifluorophenylsulfonyl chloride (Example D) and 2-bromo-3,4,5-trifluorophenylsulfonyl chloride (Example E) and replacing p-anisidine with 3-hydroxy-4-methoxyaniline. The two isomeric compounds were separated by column chromatography (silica gel; ethyl acetate:hexanes, 1:4). 1H-NMR (CDCl3): δ 7.79 (1H, m), 6.72-6.62 (4H, m), 5.65 (1H, s), 3.85 (3H, s).

Provenance & Evidence