Dimethylformamide → 2-[3-(4-Fluoro-2-nitrophenoxy)propyl]isoindole-1,3-dione

HRID 1477117Notes

Reaction equation

C(=O)([O-])[O-].[K+].[K+].Br[CH2:8][CH2:9][CH2:10][N:11]1[C:15](=[O:16])[C:14]2=[CH:17][CH:18]=[CH:19][CH:20]=[C:13]2[C:12]1=[O:21].CN(C)C=O.[F:27][C:28]1[CH:33]=[CH:32][C:31]([OH:34])=[C:30]([N+:35]([O-:37])=[O:36])[CH:29]=1>O>[F:27][C:28]1[CH:33]=[CH:32][C:31]([O:34][CH2:8][CH2:9][CH2:10][N:11]2[C:15](=[O:16])[C:14]3[C:13](=[CH:20][CH:19]=[CH:18][CH:17]=3)[C:12]2=[O:21])=[C:30]([N+:35]([O-:37])=[O:36])[CH:29]=1

Participants

Conditions

Temperature: 60 °C

Procedure

Potassium carbonate (10.8 g, 78.1 mmol) and N-(3-bromopropyl)phthalimide (12.1 g, 45.1 mmol) were added to a N, N-dimethylformamide (DMF) solution (80 ml) of 4-fluoro-2-nitrophenol (6.0 g, 38.2 mmol), and the mixture was stirred at 60° C. for 4 hours. After the reaction mixture was cooled to room temperature, water (200 ml) was added, and the reaction mixture was then cooled with ice. The precipitated insoluble matter was collected by filtration. After being washed with water (50 ml×3), the substance remaining in the filter was air-dried, giving 13.2 g of powdery pale yellow 2-[3-(4-fluoro-2-nitrophenoxy)propyl]isoindole-1,3-dione (yield: 100%).

Workup

temperatureAfter the reaction mixture was cooled to room temperature
temperaturethe reaction mixture was then cooled with ice
filtrationThe precipitated insoluble matter was collected by filtration
washAfter being washed with water (50 ml×3)
customwas air-dried

Sources & evidence

ORD record: ord-bcfd1331b0d34f41bfca30ab09edcd72
Source dataset: uspto-grants-2016_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09403773B2

Reaction notes

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