Sodium hydride → HCID 67485915, compound
Reaction equation
[Br:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[OH:9].[H-].[Na+].[Br:12][C:13]1[CH:14]=[C:15]([N+]([O-])=O)[C:16]([C:19]#[N:20])=[N:17][CH:18]=1.[NH4+].[Cl-]>O.CN(C=O)C>[Br:12][C:13]1[CH:14]=[C:15]([O:9][C:3]2[CH:4]=[CH:5][C:6]([F:8])=[CH:7][C:2]=2[Br:1])[C:16]([C:19]#[N:20])=[N:17][CH:18]=1Participants
7
Conditions
- Temperature
- 0 °C
Procedure
A 1 L flask was charged with 2-bromo-4-fluorophenol (20.5 g, 107 mmol) and DMF (500 mL). The reaction was cooled to 0° C. and NaH (2.84 g, 118 mmol) was added slowly and stirred for 15 minutes. 5-Bromo-3-nitropicolinonitrile (24.5 g, 107 mmol) was added and reaction stirred at 0° C. for 20 minutes. Saturated NH4Cl (300 mL) was added and poured into 1L water and stirred. The resultant solids were filtered and dried in a vacuum oven overnight to afford 5-bromo-3-(2-bromo-4-fluorophenoxy)picolinonitrile (38.3 g, 95.8% yield).
Workup
- customreaction
- stirringstirred at 0° C. for 20 minutes
- stirringstirred
- filtrationThe resultant solids were filtered
- customdried in a vacuum oven overnight
Sources & evidence
- ORD record
- ord-d099357786004f19a0474986a4832dac
- Source dataset
- uspto-grants-2013_01
- Patent number
- US08362037B2
Reaction notes
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