2,6-Lutidine → HCID 131736006, compound

HRID 1049450Notes

Reaction equation

HRID 1049450 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH3:9])=[CH:4][C:3]=1[C:10]1[C:11]([OH:17])=[CH:12][C:13]([OH:16])=[CH:14][CH:15]=1.FC(F)(F)S(O[Si:24]([CH:31]([CH3:33])[CH3:32])([CH:28]([CH3:30])[CH3:29])[CH:25]([CH3:27])[CH3:26])(=O)=O.CC1C=CC=C(C)N=1.[Cl-].[NH4+]>C1(C)C=CC=CC=1>[F:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH3:9])=[CH:4][C:3]=1[C:10]1[C:11]([OH:17])=[CH:12][C:13]([O:16][Si:24]([CH:31]([CH3:33])[CH3:32])([CH:28]([CH3:30])[CH3:29])[CH:25]([CH3:27])[CH3:26])=[CH:14][CH:15]=1

Participants

6

Reactant 4

HCID 79372,6-LutidineHCID 25517Ammonium ChlorideHCID 2724529Triisopropylsilyl trifluoromethanesulfonateHCID 117759897HCID 117759897, compound

Product 1

HCID 131736006HCID 131736006, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

Under a nitrogen atmosphere, to a solution of 2′-fluoro-5′-methoxybiphenyl-2,4-diol (10.6 g) in toluene (80 mL) were added triisopropylsilyl trifluoromethanesulfonate (18 mL) and 2,6-dimethylpyridine (8.0 mL) at −15° C., and the mixture was stirred for 3 hr. To the reaction mixture was added saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (10.5 g) as a pale-yellow oil.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with 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-43234d701220409692c47b789fb2b3c9
Source dataset
uspto-grants-2016_07
Patent number
US09382188B2

Reaction notes

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