Potassium Phosphate, Tribasic → 4-(2-Fluoro-5-trifluoromethyl-phenyl)-7-trifluoromethyl-quinoline-3-carboxylic acid ethyl ester

HRID 2242102Notes

Reaction equation

HRID 2242102 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[N:8][C:9]2[C:14]([C:15]=1OS(C(F)(F)F)(=O)=O)=[CH:13][CH:12]=[C:11]([C:24]([F:27])([F:26])[F:25])[CH:10]=2)=[O:5])[CH3:2].[F:28][C:29]1[CH:34]=[CH:33][C:32]([C:35]([F:38])([F:37])[F:36])=[CH:31][C:30]=1B(O)O.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.C(OCC)(=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>[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[N:8][C:9]2[C:14]([C:15]=1[C:30]1[CH:31]=[C:32]([C:35]([F:37])([F:38])[F:36])[CH:33]=[CH:34][C:29]=1[F:28])=[CH:13][CH:12]=[C:11]([C:24]([F:25])([F:26])[F:27])[CH:10]=2)=[O:5])[CH3:2]

Participants

7

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 27633012-Fluoro-5-(trifluoromethyl)phenylboronic acidHCID 592051824-Trifluoromethanesulfonyloxy-7-trifluoromethyl-quinoline-3-carboxylic acid ethyl ester

Product 1

HCID 592052214-(2-Fluoro-5-trifluoromethyl-phenyl)-7-trifluoromethyl-quinoline-3-carboxylic acid ethyl ester

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Procedure

4-Trifluoromethanesulfonyloxy-7-trifluoromethyl-quinoline-3-carboxylic acid ethyl ester (208 mg, 0.5 mmol), 2-fluoro-5-trifluoromethylphenylboronic acid (142 mg, 0.55 mmol), tetrakis(triphenylphosphine)palladium(0) (29 mg) and potassium phosphate (159 mg, 0.75 mmol) were heated together in dioxane (5 mL) to 80° C. overnight. The reaction mixture was then diluted with ethyl acetate and washed with brine twice. The organic layer was dried over sodium sulfate, concentrated, and the residue purified by flash column eluted with 30% ethyl acetate in hexane to yield 4-(2-fluoro-5-trifluoromethyl-phenyl)-7-trifluoromethyl-quinoline-3-carboxylic acid ethyl ester as a slight yellow oil.

Workup

  1. washwashed with brine twice
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. concentrationconcentrated
  4. customthe residue purified by flash column
  5. washeluted with 30% ethyl acetate in hexane

Sources & evidence

ORD record
ord-2c052db6df724ddbbddb97bce4ae3cdc
Source dataset
uspto-grants-2010_03
Patent number
US07671065B2

Reaction notes

Loading…