Water → HCID 67057696, compound
Reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5](I)=[CH:4][C:3]=1[F:9].[CH2:10]([Sn](CCCC)(CCCC)C=C)[CH2:11]CC.CCOCC.O>CN(C=O)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:10]=[CH2:11])=[CH:4][C:3]=1[F:9]Participants
Procedure
A solution of 1-bromo-2-fluoro-4-iodo-benzene (1 g, 3.32 mmol), tributyl(vinyl)tin (0.97 mL, 3.32 mmol) and dichlorobis(triphenylphosphine)palladium(II) (116 mg, 0.17 mmol) in anhydrous DMF (3 mL) was heated in a microwave reactor to 160° C. for 5 minutes. Ether (20 mL) and H2O (5 mL) were added and partitioned. The organic layer was washed with water, brine, dried (MgSO4), filtered, and concentrated. The residue was chromatographed on silica gel eluting with hexanes to provide the title compound as a colorless oil (360 mg, 54%). 1H NMR (300 MHz, CDCl3) δ 5.33 (d, J=9 Hz, 1 H), 5.76 (d, J=18 Hz, 1 H), 6.63 (dd, J=18 Hz, J=9 Hz, 1 H), 7.05 (dd, J=9 Hz, J=1 Hz, 1 H), 7.16 (dd, J=9 Hz, J=1 Hz, 1 H), 7.49 (t, J=9 Hz, 1 H); (DCl/NH3) m/z 201 (M+H)+.
Workup
- custompartitioned
- washThe organic layer was washed with water, brine
- dry with materialdried (MgSO4)
- filtrationfiltered
- concentrationconcentrated
- customThe residue was chromatographed on silica gel eluting with hexanes
Sources & evidence
- ORD record
- ord-0a7dffacd4784d76b527856328af1bfb
- Source dataset
- uspto-grants-2009_06
- Patent number
- US07553964B2
Reaction notes
Loading…