Sodium Carbonate → [2-(3,5-Bis-trifluoromethyl-phenyl)-6-(4-trifluoromethyl-phenyl)-pyridin-4-yl]-acetic acid methyl ester

HRID 2427877Notes

Reaction equation

HRID 2427877 reaction equation
[CH3:1][O:2][C:3](=[O:22])[CH2:4][C:5]1[CH:10]=[C:9]([C:11]2[CH:16]=[CH:15][C:14]([C:17]([F:20])([F:19])[F:18])=[CH:13][CH:12]=2)[N:8]=[C:7](Cl)[CH:6]=1.[F:23][C:24]([F:39])([F:38])[C:25]1[CH:26]=[C:27](B(O)O)[CH:28]=[C:29]([C:31]([F:34])([F:33])[F:32])[CH:30]=1.C([O-])([O-])=O.[Na+].[Na+]>COCCOC.O.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:22])[CH2:4][C:5]1[CH:10]=[C:9]([C:11]2[CH:16]=[CH:15][C:14]([C:17]([F:20])([F:19])[F:18])=[CH:13][CH:12]=2)[N:8]=[C:7]([C:27]2[CH:28]=[C:29]([C:31]([F:34])([F:32])[F:33])[CH:30]=[C:25]([C:24]([F:23])([F:39])[F:38])[CH:26]=2)[CH:6]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 1562653,5-Bis-trifluoromethylphenylboronic acidHCID 59161716[2-Chloro-6-(4-trifluoromethyl-phenyl)-pyridin-4-yl]-acetic acid methyl ester

Product 1

HCID 59161719[2-(3,5-Bis-trifluoromethyl-phenyl)-6-(4-trifluoromethyl-phenyl)-pyridin-4-yl]-acetic acid methyl esterYield 59.1%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
85 °C

Procedure

To a degassed solution of [2-chloro-6-(4-trifluoromethyl-phenyl)-pyridin-4-yl]-acetic acid methyl ester (165 mg, 0.5 mmol), 3,5-di(trifluoromethyl)benzeneboronic acid (160 mg, 0.6 mmol), 2N Na2CO3 (1.0 mL) in DME (9 mL) was added tetrakis(triphenylphosphine)palladium (70 mg, 0.06 mmol) under argon. The mixture was heated to 85° C. for 6 h, cooled to room temperature, diluted with water, and extracted with methylene chloride (3×). The organic solution was washed with brine, dried over Na2SO4, and concentrated. The residue was purified by column chromatography on silica gel (0-20% ethyl acetate in methylene chloride) to give the product as a white solid (150 mg, 59%). 1H NMR (300 MHz, CDCl3) δ 8.57 (s, 2H), 8.24 (d, J=8.29 Hz, 2H), 7.96 (s, 1H), 7.73-7.85 (m, 4H), 3.83 (s, 2H), 3.78 (s, 3H). MS m/e 508.2 (M+H).

Workup

  1. temperaturecooled to room temperature
  2. extractionextracted with methylene chloride (3×)
  3. washThe organic solution was washed with brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated
  6. customThe residue was purified by column chromatography on silica gel (0-20% ethyl acetate in methylene chloride)

Sources & evidence

ORD record
ord-ba5e727b77a14f65abe81539937eba29
Source dataset
uspto-grants-2011_06
Patent number
US07968725B2

Reaction notes

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