Ethanol → HCID 57667959, compound
Reaction equation
[C:1]1([CH3:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:8](O)C.Br[C:12]1[CH:21]=[CH:20][C:15]([C:16]([O:18][CH3:19])=[O:17])=[C:14]([NH:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)[CH:13]=1.C(=O)([O-])O.[Na+]>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.O.C(OCC)(=O)C>[F:29][C:26]1[CH:27]=[CH:28][C:23]([NH:22][C:14]2[CH:13]=[C:12](/[CH:8]=[CH:7]/[C:1]3[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=3)[CH:21]=[CH:20][C:15]=2[C:16]([O:18][CH3:19])=[O:17])=[CH:24][CH:25]=1Participants
Procedure
To a mixed solution of toluene 2.0 mL, ethanol 0.6 mL and water 0.2 mL of methyl 4-bromo-2-(4-fluoroanilino)benzoate 0.20 g were added (E)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styrene 0.21 g, sodium hydrogen carbonate 0.18 g and tetrakis(triphenylphosphine)palladium(0) 40 mg, and it was heated and refluxed under nitrogen atmosphere for 2 hours. After the reaction mixture was cooled to room temperature, tetrakis(triphenylphosphine)palladium(0) 40 mg was added to it, and it was heated and refluxed under nitrogen atmosphere for 6 hours. After the reaction mixture was cooled to room temperature, ethyl acetate and water were added to it. The organic layer was separated and collected,dried over anhydrous magnesium sulfate after sequential washing with 1.0 mol/L hydrochloric acid, saturated sodium hydrogen carbonate aqueous solution and saturated sodium chloride aqueous solution, and the solvent was removed under reduced pressure. The obtained residue was refined by silica gel column chromatography [eluent; hexane:ethyl acetate=20:1] to give methyl 2-(4-fluoroanilino)-4-((E)-2-phenylvinyl)benzoate.
Workup
- temperaturewas heated
- temperaturerefluxed under nitrogen atmosphere for 2 hours
- temperaturewas heated
- temperaturerefluxed under nitrogen atmosphere for 6 hours
- temperatureAfter the reaction mixture was cooled to room temperature
- customThe organic layer was separated
- washafter sequential washing with 1.0 mol/L hydrochloric acid, saturated sodium hydrogen carbonate aqueous solution and saturated sodium chloride aqueous solution
- customthe solvent was removed under reduced pressure
Sources & evidence
- ORD record
- ord-2e161b40b00f4db5afbf3964bf0f4590
- Source dataset
- uspto-grants-2012_12
- Patent number
- US08327467B2
Reaction notes
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