Dimethylformamide → 2-Bromo-4'-fluoro-5-methoxybiphenyl-4-carbaldehyde
Reaction equation
[Br:1]N1C(=O)NC(=O)N(Br)C1=O.CN(C=O)C.[F:17][C:18]1[CH:23]=[CH:22][C:21]([C:24]2[CH:29]=[CH:28][C:27]([CH:30]=[O:31])=[C:26]([O:32][CH3:33])[CH:25]=2)=[CH:20][CH:19]=1>O>[Br:1][C:29]1[CH:28]=[C:27]([CH:30]=[O:31])[C:26]([O:32][CH3:33])=[CH:25][C:24]=1[C:21]1[CH:20]=[CH:19][C:18]([F:17])=[CH:23][CH:22]=1Participants
5
Procedure
Dibromoisocyanuric acid (10.6 g) was added at 15° C. to 30° C. to a DMF (90 mL) solution of 4′-fluoro-3-methoxybiphenyl-4-carbaldehyde (16.0 g), and the mixture was stirred for 40 minutes. Then, water (30 mL) was added thereto, and the mixture was further stirred for 1 hour. The deposited solid was collected by filtration and washed with a mixed solution of DMF (15 mL) and water (15 mL) and water (30 mL) in this order to obtain the title compound (20.6 g).
Workup
- stirringthe mixture was further stirred for 1 hour
- filtrationThe deposited solid was collected by filtration
- washwashed with a mixed solution of DMF (15 mL) and water (15 mL) and water (30 mL) in this order
Sources & evidence
- ORD record
- ord-8b661be5d8f44d37bb8fe0c8b0d3bf69
- Source dataset
- uspto-grants-2016_05
- Patent number
- US09353108B2
Reaction notes
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