1-(2-Bromo-4-fluorophenyl)ethan-1-one → 2-Bromo-1-(2-bromo-4-fluorophenyl)ethanone
Reaction equation
[Br:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C:9](=[O:11])[CH3:10].[Br:12]CC(C1C=C(Cl)C=CC=1Cl)=O>>[Br:12][CH2:10][C:9]([C:3]1[CH:4]=[CH:5][C:6]([F:8])=[CH:7][C:2]=1[Br:1])=[O:11]Participants
3
Procedure
This compound was prepared from 1-(2-bromo-4-fluoro-phenyl)-ethanone (2.5 g, 11.52 mmol) in the manner described for 2-bromo-1-(2,5-dichlorophenyl)-ethanone (Method I-2), affording 2.14 g (63%) of 2-bromo-1-(2-bromo-4-fluoro-phenyl)-ethanone as a clear oil. 1H-NMR (CD2Cl2) δ 7.57 (dd, J=9, 6 Hz, 1H), 7.44 (dd, J=8, 2 Hz, 1H), 7.21 ((m, 7.21–7.14, 1H), 4.51 (s, 2H); TLC Rf=0.38, 15% ethyl acetate-hexanes.
Sources & evidence
- ORD record
- ord-19e2afa84d3f4eae93c73b0f70014c42
- Source dataset
- uspto-grants-2006_12
- Patent number
- US07144885B2
Reaction notes
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