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

HRID 1712057Notes

Reaction equation

HRID 1712057 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].[CH3:28][C:29]1[CH:30]=[C:31](B(O)O)[CH:32]=[CH:33][C:34]=1[CH3:35].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:31]1[CH:32]=[CH:33][C:34]([CH3:35])=[C:29]([CH3:28])[CH:30]=1)=[CH:13][CH:12]=[C:11]([C:24]([F:27])([F:26])[F:25])[CH:10]=2)=[O:5])[CH3:2]

Participants

7

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 27343483,4-Dimethylphenylboronic acidHCID 592051824-Trifluoromethanesulfonyloxy-7-trifluoromethyl-quinoline-3-carboxylic acid ethyl ester

Product 1

HCID 592052314-(3,4-Dimethyl-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), 3,4-dimethylphenylboronic acid (82.5 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-(3,4-dimethyl-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-2236175a7d3843c3945990f2af76d83d
Source dataset
uspto-grants-2010_09
Patent number
US07790895B2

Reaction notes

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