Water → methyl 3-chloro-2-ethenyl-4-methoxy-5-[4-(1H-pyrazol-1-yl)benzyl]benzoate

HRID 629384Notes

Reaction equation

HRID 629384 reaction equation
[Cl:1][C:2]1[C:3](OS(C(F)(F)F)(=O)=O)=[C:4]([CH:9]=[C:10]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([N:21]3[CH:25]=[CH:24][CH:23]=[N:22]3)=[CH:17][CH:16]=2)[C:11]=1[O:12][CH3:13])[C:5]([O:7][CH3:8])=[O:6].O.[CH:35]([B-](F)(F)F)=[CH2:36].[K+].C(=O)([O-])[O-].[Cs+].[Cs+]>C1COCC1.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>[Cl:1][C:2]1[C:3]([CH:35]=[CH2:36])=[C:4]([CH:9]=[C:10]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([N:21]3[CH:25]=[CH:24][CH:23]=[N:22]3)=[CH:17][CH:16]=2)[C:11]=1[O:12][CH3:13])[C:5]([O:7][CH3:8])=[O:6]

Participants

7

Reactant 4

HCID 962Water2×HCID 10796Cesium carbonateHCID 23679353Potassium vinyltrifluoroborateHCID 118468368methyl 3-chloro-4-methoxy-5-[4-(1H-pyrazol-1-yl)benzyl]-2-{[(trifluoromethyl)sulfonyl]oxy}benzoate

Product 1

HCID 118468209methyl 3-chloro-2-ethenyl-4-methoxy-5-[4-(1H-pyrazol-1-yl)benzyl]benzoateYield 29.3%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl 3-chloro-4-methoxy-5-[4-(1H-pyrazol-1-yl)benzyl]-2-{[(trifluoromethyl)sulfonyl]oxy}benzoate (0.36 g) in THF (8.00 mL)-water (3.00 mL) were added potassium vinyltrifluoroborate (0.17 g), cesium carbonate (0.60 g) and tetrakis(triphenylphosphine)palladium(0) (0.04 g), and the mixture was heated with reflux for 16 hr under nitrogen atmosphere. To the reaction mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by thin layer chromatography (ethyl acetate/petroleum ether) to give the title compound (0.08 g).

Workup

  1. temperaturethe mixture was heated
  2. temperaturewith reflux for 16 hr under nitrogen atmosphere
  3. extractionthe mixture was extracted with ethyl acetate
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by thin layer chromatography (ethyl acetate/petroleum ether)

Sources & evidence

ORD record
ord-fff137af1a58457a86bd299e2976bf8e
Source dataset
uspto-grants-2016_04
Patent number
US09315458B2

Reaction notes

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