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Water → methyl 5-(2-fluoro-4-(1H-pyrazol-1-yl)benzyl)-2-hydroxy-3,4-dimethylbenzoate

HRID 629409
Notes
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Reaction equation

HRID 629409 reaction equation
[OH:1][C:2]1[C:11]([CH3:12])=[C:10]([CH3:13])[C:9](B2OC(C)(C)C(C)(C)O2)=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5].Cl[CH2:24][C:25]1[CH:30]=[CH:29][C:28]([N:31]2[CH:35]=[CH:34][CH:33]=[N:32]2)=[CH:27][C:26]=1[F:36].C(=O)([O-])[O-].[Na+].[Na+].O>COCCOC.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(OCC)(=O)C>[F:36][C:26]1[CH:27]=[C:28]([N:31]2[CH:35]=[CH:34][CH:33]=[N:32]2)[CH:29]=[CH:30][C:25]=1[CH2:24][C:9]1[C:10]([CH3:13])=[C:11]([CH3:12])[C:2]([OH:1])=[C:3]([CH:8]=1)[C:4]([O:6][CH3:7])=[O:5]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 962Water2×HCID 10340Sodium CarbonateHCID 590285991-(4-(chloromethyl)-3-fluorophenyl)-1H-pyrazoleHCID 131735371Methyl 2-hydroxy-3,4-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate

Product 1

HCID 118468167methyl 5-(2-fluoro-4-(1H-pyrazol-1-yl)benzyl)-2-hydroxy-3,4-dimethylbenzoateYield 91.7%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

To a mixture of methyl 2-hydroxy-3,4-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (0.51 g), 1-(4-(chloromethyl)-3-fluorophenyl)-1H-pyrazole (0.35 g) and sodium carbonate (0.35 g) in 1,2-dimethoxyethane (7.80 mL)-water (2.60 mL) was added tetrakis(triphenylphosphine)palladium(0) (0.10 g), and the mixture was stirred overnight at 80° C. under argon atmosphere. To the reaction mixture were added water and ethyl acetate, and the mixture was partitioned. The organic layer was washed with water and saturated brine, and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (0.54 g).

Workup

  1. customthe mixture was partitioned
  2. washThe organic layer was washed with water and saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

Sources & evidence

ORD record
ord-ebeeccf4f99d44b8a44a88c21086d58f
Source dataset
uspto-grants-2016_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09315458B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes