Phosphorus tribromide → 4-Bromomethyl-5-(4-bromo-phenyl)-3-methyl-isoxazole
Reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[O:12][N:11]=[C:10]([CH3:13])[C:9]=2[CH2:14]O)=[CH:4][CH:3]=1.P(Br)(Br)[Br:17]>COCCOC>[Br:17][CH2:14][C:9]1[C:10]([CH3:13])=[N:11][O:12][C:8]=1[C:5]1[CH:6]=[CH:7][C:2]([Br:1])=[CH:3][CH:4]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
[5-(4-Bromo-phenyl)-3-methyl-isoxazol-4-yl]-methanol (2.88 g, 10.74 mmol) in DME (23 mL) was treated with phosphorus tribromide (1.5 mL, 16.11 mmol), and the reaction was stirred at room temperature for 1 hour. Aqueous workup provided the title compound.
Sources & evidence
- ORD record
- ord-8228ee2724714d35baa3154f814baca5
- Source dataset
- uspto-grants-2014_07
- Patent number
- US08778983B2
Reaction notes
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