Water → {4-[4-(3,5-Difluoro-phenylsulfanyl)-phenyl]-6-fluoro-3-methyl-naphthalen-2-yl}-acetic acid methyl ester

HRID 1468380Notes

Reaction equation

HRID 1468380 reaction equation
[CH3:1][O:2][C:3](=[O:26])[CH2:4][C:5]1[C:14]([CH3:15])=[C:13](B2OC(C)(C)C(C)(C)O2)[C:12]2[C:7](=[CH:8][CH:9]=[C:10]([F:25])[CH:11]=2)[CH:6]=1.Br[C:28]1[CH:33]=[CH:32][C:31]([S:34][C:35]2[CH:40]=[C:39]([F:41])[CH:38]=[C:37]([F:42])[CH:36]=2)=[CH:30][CH:29]=1.C(=O)(O)[O-].[Na+].O>C(COC)OC.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>[CH3:1][O:2][C:3](=[O:26])[CH2:4][C:5]1[C:14]([CH3:15])=[C:13]([C:28]2[CH:29]=[CH:30][C:31]([S:34][C:35]3[CH:40]=[C:39]([F:41])[CH:38]=[C:37]([F:42])[CH:36]=3)=[CH:32][CH:33]=2)[C:12]2[C:7](=[CH:8][CH:9]=[C:10]([F:25])[CH:11]=2)[CH:6]=1

Participants

7

Reactant 4

HCID 962WaterHCID 516892Sodium BicarbonateHCID 59350821[6-Fluoro-3-methyl-4-(4,4,5,5-tetra methyl-[1,3,2]-dioxaborolan-2-yl)-naphthalen-2-yl]-acetic acid methyl esterHCID 866949421-(4-Bromo-phenylsulfanyl)-3,5-difluorobenzene

Product 1

HCID 86694974{4-[4-(3,5-Difluoro-phenylsulfanyl)-phenyl]-6-fluoro-3-methyl-naphthalen-2-yl}-acetic acid methyl esterYield 36.2%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Procedure

A stirred solution of [6-fluoro-3-methyl-4-(4,4,5,5-tetra methyl-[1,3,2]-dioxaborolan-2-yl)-naphthalen-2-yl]-acetic acid methyl ester (0.2 g, 0.55 mmol) in dimethoxyethane (5 mL) was purged with argon for 5 minutes at room temperature. Tetrakis(triphenylphosphine)palladium(0) (0.032 g, 0.028 mmol), impure 1-(4-bromo-phenylsulfanyl)-3,5-difluorobenzene (0.184 g) and 1.0 M aqueous sodium bicarbonate (5 mL, 5 mmol) were added simultaneously to the reaction mixture under argon. The reaction mixture was refluxed for 2 hours and then brought to room temperature. Water was added and the resulting mixture was extracted twice with ethyl acetate. The combined organic extracts were washed with water and brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure to give the crude product, which was finally purified using flash chromatography (0-3% ethyl acetate in hexanes) to give {4-[4-(3,5-difluoro-phenylsulfanyl)-phenyl]-6-fluoro-3-methyl-naphthalen-2-yl}-acetic acid methyl ester (0.09 g, 36%) as a solid. MS calcd. for C26H18F3O2S [(M−H)−] 451, obsd. 451.2.

Workup

  1. temperatureThe reaction mixture was refluxed for 2 hours
  2. custombrought to room temperature
  3. extractionthe resulting mixture was extracted twice with ethyl acetate
  4. washThe combined organic extracts were washed with water and brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customto give the crude product, which
  8. customwas finally purified

Sources & evidence

ORD record
ord-6065434acd754cc4855e345558cd229e
Source dataset
uspto-grants-2015_04
Patent number
US09000044B2

Reaction notes

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