Stannane, tributyl(1-ethoxyethenyl)- → HCID 16065044, compound
Reaction equation
Br[C:2]1[CH:7]=[C:6]([F:8])[C:5]([C:9]2[C:10](=[O:27])[CH:11]=[CH:12][N:13]3[C:18]=2[CH:17]=[CH:16][CH:15]=[C:14]3[C:19]2[CH:24]=[CH:23][C:22]([F:25])=[CH:21][C:20]=2[F:26])=[C:4]([F:28])[CH:3]=1.C([Sn](CCCC)(CCCC)[C:34]([O:36]CC)=[CH2:35])CCC>C1(C)C=CC=CC=1.O.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:34]([C:2]1[CH:7]=[C:6]([F:8])[C:5]([C:9]2[C:10](=[O:27])[CH:11]=[CH:12][N:13]3[C:18]=2[CH:17]=[CH:16][CH:15]=[C:14]3[C:19]2[CH:24]=[CH:23][C:22]([F:25])=[CH:21][C:20]=2[F:26])=[C:4]([F:28])[CH:3]=1)(=[O:36])[CH3:35]Participants
7
Conditions
- Temperature
- 90 °C
Procedure
To a solution of 1-(4-bromo-2,6-difluorophenyl)-6-(2,4-difluorophenyl)-2H-quinolizin-2-one (30 mg, 0.067 mmol) in toluene (1.4 mL) was added tributyl(1-ethoxyvinyl)stannane and tetrakis(triphenylphosphine)palladium (7.74 mg, 0.007 mmol) and heated to 90° C. for 1½ h. The reaction was cooled, filtered through celite, and diluted with THF. The mixture was added 2N HCl and stirred for 20 min to complete the reaction. The crude mixture was diluted with H2O and EtOAc. The organic layer was washed with H2O, brine, dried over MgSO4, and condensed. The crude residue was purified via silica gel chromatography (hexanes/ethyl acetate) to give the title compound (7.9 mg).
Workup
- temperatureThe reaction was cooled
- filtrationfiltered through celite
- additiondiluted with THF
- additionThe mixture was added 2N HCl
- customthe reaction
- washThe organic layer was washed with H2O, brine
- dry with materialdried over MgSO4, and condensed
- customThe crude residue was purified via silica gel chromatography (hexanes/ethyl acetate)
Sources & evidence
- ORD record
- ord-df881b32556a405586587685ca113cfe
- Source dataset
- uspto-grants-2011_02
- Patent number
- US07879875B2
Reaction notes
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