Ethyl Acetate → HCID 59830897, compound

HRID 1799336Notes

Reaction equation

HRID 1799336 reaction equation
[C:1]([O:5][C:6]([C:8]1[C:9]([C:14]2[CH:19]=[CH:18][C:17]([CH2:20][N:21]3[C:25]([CH:26]=[O:27])=[C:24](Br)[N:23]=[C:22]3[O:29][CH2:30][CH2:31][CH3:32])=[C:16]([F:33])[CH:15]=2)=[CH:10][CH:11]=[CH:12][CH:13]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:34][CH2:35]OC(C)=O>CN(C=O)C.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:1]([O:5][C:6]([C:8]1[C:9]([C:14]2[CH:19]=[CH:18][C:17]([CH2:20][N:21]3[C:25]([CH:26]=[O:27])=[C:24]([CH:34]=[CH2:35])[N:23]=[C:22]3[O:29][CH2:30][CH2:31][CH3:32])=[C:16]([F:33])[CH:15]=2)=[CH:10][CH:11]=[CH:12][CH:13]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 8857Ethyl AcetateHCID 59830905HCID 59830905, compound

Product 1

HCID 59830897HCID 59830897, compound

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
110 °C

Procedure

Intermediate (18a) (10.0 g, 19.3 mmol) was dissolved in DMF (100 mL). Tetrakis(triphenylphosphine)palladium(0) (400 mg, 0.4 mmol) was added, followed by (2-ethenyl)tri-n-butyltin (8.5 mL, 29.0 mmol). The reaction vessel was fitted with a reflux condenser and was heated to 110° C. with stirring for 1 hour, under nitrogen. The mixture was cooled and 200 mL EtOAc was added. The organic layer was washed with a 20% solution of potassium fluoride (2×50 mL) followed by saturated aqueous NaCl (100 mL), then dried over MgSO4, filtered and concentrated in vacuo. The resulting material was purified by silica gel chromatography (0-80% EtOAc:hexanes) to yield intermediate (18b) as a colorless oil (7.2 g). Anal. HPLC retention time=4.9 minutes. Gradient conditions: 25% solvent B/75% solvent A to 95% solvent B/5% solvent A over 6 minutes. MS m/z: [M+H+] calcd for C27H29FN2O4, 465.22; found 465.6.

Workup

  1. customThe reaction vessel was fitted with a reflux condenser
  2. temperatureThe mixture was cooled
  3. washThe organic layer was washed with a 20% solution of potassium fluoride (2×50 mL)
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe resulting material was purified by silica gel chromatography (0-80% EtOAc:hexanes)

Sources & evidence

ORD record
ord-392d015fef874ace93f9ea065404f805
Source dataset
uspto-grants-2013_01
Patent number
US08344013B2

Reaction notes

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