Dimethylformamide → 3-(2-Methoxyphenoxy)-2-nitro-5-(pyridin-3-yloxy)-aniline

HRID 13245

Reaction equation

[OH:1][C:2]1[CH:3]=[N:4][CH:5]=[CH:6][CH:7]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O.F[C:20]1[CH:21]=[C:22]([O:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=2[O:37][CH3:38])[C:23]([N+:27]([O-:29])=[O:28])=[C:24]([CH:26]=1)[NH2:25]>C(OCC)(=O)C>[CH3:38][O:37][C:32]1[CH:33]=[CH:34][CH:35]=[CH:36][C:31]=1[O:30][C:22]1[C:23]([N+:27]([O-:29])=[O:28])=[C:24]([CH:26]=[C:20]([O:1][C:2]2[CH:3]=[N:4][CH:5]=[CH:6][CH:7]=2)[CH:21]=1)[NH2:25]

Participants

Conditions

Temperature: 90 °C

Procedure

1.24 g of 3-hydroxypyridine and 5.42 g of potassium carbonate were added to a dimethylformamide (30 ml) solution of 3.03 g of 5-fluoro-3-(2-methoxyphenoxy)-2-nitroaniline, and the reaction liquid was stirred overnight at 90° C. The reaction liquid was diluted with ethyl acetate, washed with water and saturated saline in order, and then dried with anhydrous magnesium sulfate. The solvent was evaporated away under reduced pressure, and the resulting residue was purified through silica gel column chromatography (developing solvent: hexane/ethyl acetate=2/1 to 1/1 to 1/2) to obtain the entitled compound as an orange solid.

Workup

customthe reaction liquid
customThe reaction liquid
washwashed with water and saturated saline in order
dry with materialdried with anhydrous magnesium sulfate
customThe solvent was evaporated away under reduced pressure
customthe resulting residue was purified through silica gel column chromatography (developing solvent: hexane/ethyl acetate=2/1 to 1/1 to 1/2)

Sources & evidence

ORD record: ord-8c7fa5a2cf3b4f4696863b7655a33295
Source dataset: uspto-grants-2010_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07728025B2

Linked notes

Loading…